DP83816AVNG/NOPB National Semiconductor, DP83816AVNG/NOPB Datasheet

IC MEDIA ACCESS CTRLR 144-LQFP

DP83816AVNG/NOPB

Manufacturer Part Number
DP83816AVNG/NOPB
Description
IC MEDIA ACCESS CTRLR 144-LQFP
Manufacturer
National Semiconductor
Datasheet

Specifications of DP83816AVNG/NOPB

Applications
*
Interface
*
Voltage - Supply
*
Package / Case
144-LQFP
Mounting Type
Surface Mount
For Use With
DP83816-MAAP - BOARD EVALUATION DP83816
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*DP83816AVNG
*DP83816AVNG/NOPB
DP83816AVNG

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© 2005 National Semiconductor Corporation
MacPHYTER-II is a trademark of National Semiconductor Corporation.
Magic Packet is a trademark of Advanced Micro Devices, Inc.
DP83816 10/100 Mb/s Integrated PCI Ethernet Media Access
Controller and Physical Layer (MacPHYTER-II
General Description
DP83816 is a single-chip 10/100 Mb/s Ethernet Controller
for the PCI bus. It is targeted at low-cost, high volume PC
motherboards, adapter cards, and embedded systems.
The DP83816 fully implements the V2.2 33 MHz PCI bus
interface for host communications with power management
support. Packet descriptors and data are transferred via
bus-mastering, reducing the burden on the host CPU. The
DP83816 can support full duplex 10/100 Mb/s transmission
and reception, with minimum interframe gap.
The DP83816 device is an integration of an enhanced
version of the National Semiconductor PCI MAC/BIU
(Media Access Controller/Bus Interface Unit) and a 3.3V
CMOS physical layer interface.
Features
— IEEE 802.3 Compliant, PCI V2.2 MAC/BIU supports
— Bus master - burst sizes of up to 128 dwords (512 bytes)
— BIU compliant with PC 97 and PC 98 Hardware Design
— Wake on LAN (WOL) support compliant with PC98,
— Clkrun function for PCI Mobile Design Guide
— Virtual LAN (VLAN) and long frame support
System Diagram
traditional data rates of 10 Mb/s Ethernet and 100 Mb/s
Fast Ethernet (via internal phy)
Guides, PC 99 Hardware Design Guide draft, ACPI v1.0,
PCI Power Management Specification v1.1, OnNow
Device
Specification - Network Device Class v1.0a
PC99, SecureOn, and OnNow, including directed
packets, Magic Packet, VLAN packets, ARP packets,
pattern match packets, and Phy status change
Class
Power
Management
PCI Bus
BIOS ROM
(optional) (optional)
DP83816
Reference
EEPROM
— Support for IEEE 802.3x Full duplex flow control
— Extremely flexible Rx packet filtration including: single
— Statistics gathered for support of RFC 1213 (MIB II),
— Internal 2 KB Transmit and 2 KB Receive data FIFOs
— Serial EEPROM port with auto-load of configuration data
— Flash/PROM interface for remote boot support
— Fully integrated IEEE 802.3/802.3u 3.3V CMOS physical
— IEEE 802.3 10BASE-T transceiver with integrated filters
— IEEE 802.3u 100BASE-TX transceiver
— Fully integrated ANSI X3.263 compliant TP-PMD
— IEEE 802.3u Auto-Negotiation - advertised features
— Full Duplex support for 10 and 100 Mb/s data rates
— Single 25 MHz reference clock
— 144-pin LQFP package
— Low power 3.3V CMOS design with typical consumption
— IEEE 802.3u MII for connecting alternative external
— 3.3V signalling with 5V tolerant I/O.
address perfect filter with MSb masking, broadcast, 512
entry multicast/unicast hash table, deep packet pattern
matching for up to 4 unique patterns
RFC 1398 (Ether-like MIB), IEEE 802.3 LME, reducing
CPU overhead for management
from EEPROM at power-on
layer
physical sublayer with adaptive equalization and
Baseline Wander compensation
configurable via EEPROM
of 383 mW operating, 297 mW during WOL and 53 mW
during sleep mode
Physical Layer Devices
Isolation
10/100 Twisted Pair
)
www.national.com
September 2005

Related parts for DP83816AVNG/NOPB

DP83816AVNG/NOPB Summary of contents

Page 1

... Clkrun function for PCI Mobile Design Guide — Virtual LAN (VLAN) and long frame support System Diagram MacPHYTER-II trademark of National Semiconductor Corporation. Magic Packet trademark of Advanced Micro Devices, Inc. © 2005 National Semiconductor Corporation — Support for IEEE 802.3x Full duplex flow control — ...

Page 2

Connection Diagram . . . . . . . . . . . . . . . . . . 4 1.1 144 LQFP Package (VNG ...

Page 3

Multiple Descriptor Packets . . . . . . . . . . . . . . . . . . 80 5.1.4 Descriptor Lists . . . . . . . . . . . . . . ...

Page 4

Connection Diagram 1.1 144 LQFP Package (VNG VSS 39 IAUXVDD 40 VREF 41 RESERVED VSS 45 TPRDM 46 TPRDP 47 IAUXVDD 48 REGEN 49 VSS RESERVED 50 VSS 51 VSS 52 ...

Page 5

Pin Description PCI Bus Interface LQFP Pin Symbol No(s) AD[31-0] 66, 67, 68, 70, 71, 72, 73, 74, 78, 79, 81, 82, 83, 86, 87, 88, 101, 102, 104, 105, 106, 108, 109, 110, 112, 113, 115, 116, 118, ...

Page 6

Pin Description (Continued) PCI Bus Interface LQFP Pin Symbol No(s) SERRN 98 STOPN 96 TRDYN 93 PMEN/ 59 CLKRUNN 3VAUX 122 PWRGOOD 123 Dir I/O System Error: This signal is asserted low by DP83816 during address parity errors and ...

Page 7

Pin Description (Continued) Media Independent Interface (MII) LQFP Pin Symbol No(s) COL 28 CRS 29 MDC 5 MDIO 4 RXCLK 6 RXD3/MA9, 12, RXD2/MA8, 11, RXD1/MA7, 10, RXD0/MA6 7 RXDV/MA11 15 RXER/MA10 14 RXOE 13 TXCLK 31 TXD3/MA15, 25, ...

Page 8

Pin Description (Continued) 100BASE-TX/10BASE-T Interface LQFP Pin Symbol No(s) TPTDP, TPTDM 54, 53 TPRDP, TPRDM 46, 45 BIOS ROM/Flash Interface LQFP Pin Symbol No(s) MCSN 129 MD7, MD6, MD5, 141, 140, 139, MD4/EEDO, MD3, 138, 135, MD2, 134, MD1/CFGDISN, ...

Page 9

Pin Description (Continued) Clock Interface LQFP Pin Symbol No( LED Interface LQFP Pin Symbol No(s) LEDACTN/MA0 142 LED100N/MA2 144 LED10N/MA1 143 Serial EEPROM Interface LQFP Pin Symbol No(s) EESEL 128 EECLK/MA4 2 EEDI/MA3 1 EEDO/MD4 ...

Page 10

Pin Description (Continued) External Reference Interface LQFP Pin Symbol No(s) VREF 40 No Connects and Reserved LQFP Pin Symbol No(s) NC 34, 42, 43, 36, 37, 84, 85, 124, 125, 126 RESERVED 41, 50, 127 REGEN 48 Supply Pins ...

Page 11

Functional Description DP83816 consists of a MAC/BIU Controller/Bus Interface Unit), a physical layer interface, SRAM, and miscellaneous support logic. The MAC/BIU includes the PCI bus, BIOS ROM and EEPROM interfaces, TPRDP/M 25 MHz Clk SRAM RX-2 KB SRAM RXFilter ...

Page 12

Functional Description PCI Bus 32 Interface 32 32 93C46 Serial EEPROM Figure 3-2 3.1 MAC/BIU The MAC/BIU is a derivative design from the DP83810 (Euphrates). The original MAC/BIU design has been optimized to improve logic ...

Page 13

Functional Description Little Endian (CFG:BEM=0): The byte orientation for receive and transmit data in system memory is as follows Byte 3 Byte 2 Byte 1 MSB C/BE[3] C/BE[2] C/BE[1] Big Endian (CFG:BEM=1): The byte ...

Page 14

Functional Description PA SFD DA SA LEN 60b Note Bytes b = bits Figure 3-3 Ethernet Packet Format 3.2.4 MIB The MIB block contains counters to track certain media events required by the ...

Page 15

Functional Description POWER ON CONFIGURATION PINS TX_DATA TX_DATA TRANSMIT CHANNELS & STATE MACHINES 100 MB/S 10 MB/S 4B/5B ENCODER NRZ TO MANCHESTER SCRAMBLER ENCODER PARALLEL TO SERIAL LINK PULSE GENERATOR NRZ TO NRZI ENCODER TRANSMIT BINARY TO FILTER MLT-3 ...

Page 16

Functional Description 3.4 Physical Layer The DP83816 has a full featured physical layer device with integrated PMD sub-layers to support both 10BASE-T and 100BASE-TX Ethernet protocols. The physical layer is designed for easy implementation of 10/100 Mb/s Ethernet home ...

Page 17

Functional Description mode, and any condition other than a single good link occurs, then the parallel detect fault bit will set to a one, bit 4 of the ANER register (98h). 3.4.4 Auto-Negotiation Restart Once Auto-Negotiation has completed, it ...

Page 18

Functional Description 3.6 Half Duplex vs. Full Duplex The DP83816 supports both half and full duplex operation at both 10 Mb/s and 100 Mb/s speeds. Half-duplex is the standard, traditional mode of operation which relies on the CSMA/CD protocol ...

Page 19

Functional Description FROM CGM BP_4B5B BP_SCR Figure 3-6 100BASE-TX Transmit Block Diagram 3.9.1 Code-group Encoding and Injection The code-group encoder converts 4-bit (4B) nibble data generated by the MAC into 5-bit (5B) code-groups for transmission. This conversion is required ...

Page 20

Functional Description 3.9.3 NRZ to NRZI Encoder After the transmit data stream has been serialized and scrambled, the data must be NRZI encoded in order to comply with the TP-PMD standard for 100BASE-TX transmission over Category-5 un-shielded twisted pair ...

Page 21

Functional Description Table 3-1 4B5B Code-Group Encoding/Decoding Name INVALID CODES The 100BASE-TX MLT-3 signal sourced by the TD± common driver output pins is slew rate controlled. This should be ...

Page 22

Functional Description RXCLK LINK INTEGRITY MONITOR RX_DATA VALID SSD DETECT BP_SCR CLOCK CLOCK RECOVERY MODULE (Continued) RXD(3:0)/RXER BP_RX MUX MUX BP_4B5B 4B/5B DECODER SERIAL TO PARALLEL CODE GROUP ALIGNMENT MUX DESCRAMBLER NRZI TO NRZ DECODER MLT-3 TO BINARY DECODER ...

Page 23

Functional Description Figure 3-9 100BASE-TX BLW Event Diagram 3.10.3 Digital Adaptive Equalization When transmitting data at high speeds over copper twisted pair cable, frequency dependent attenuation becomes a concern. In high-speed twisted pair signalling, the frequency content of the ...

Page 24

Functional Description Figure 3-10 EIA/TIA Attenuation vs. Frequency for 0, 50, 100, 130 & 150 meters of CAT V cable 2ns/div Figure 3-11 MLT-3 Signal Measured at AII after 0 meters of CAT V cable 3.10.4 Line Quality Monitor ...

Page 25

Functional Description 3.10.6 Clock Recovery Module The Clock Recovery Module (CRM) accepts 125 Mb/s MLT3 data from the equalizer. The DPLL locks onto the 125 Mb/s data stream and extracts a 125 MHz recovered clock. The extracted and synchronized ...

Page 26

Functional Description 3.11 10BASE-T Transceiver Module The 10BASE-T Transceiver Module is IEEE 802.3 compliant. It includes the receiver, transmitter, collision, heartbeat, loopback, jabber, and link integrity functions, as defined in the standard. An external filter is not required on ...

Page 27

Functional Description 3.11.5 Jabber Function The jabber function monitors the DP83816's output and disables the transmitter if it attempts to transmit a packet of longer than legal size. A jabber timer monitors the transmitter and disables the transmission if ...

Page 28

Functional Description 3.12.3 MII Serial Management Access Management access to the PHY(s) Management Data Clock (MDC) and Management Data Input/Output (MDIO). MDC has a maximum clock rate of 25 MHz and no minimum rate. The MDIO line is bi-directional ...

Page 29

Functional Description MDC Z MDIO (STA PHY Address Opcode Idle Start (Write) (PHYAD = 0Ch) Figure 3-16 Typical MDC/MDIO Write Operation The receive interface ...

Page 30

... This field is read-only and is set to the device ID assigned by National Semiconductor to the DP83816, which is 0020h. 15-0 VENID Vendor ID This field is read-only and is set to a value of 100Bh which is National Semiconductor's PCI Vendor ID. Table 4-1 Configuration Register Map Description Configuration Identification Register Configuration Command and Status Register ...

Page 31

Register Set (Continued) 4.1.2 Configuration Command and Status Register The CFGCS register has two parts. The upper 16-bits (31-16) are devoted to device status. A status bit is reset whenever the register is written, and the corresponding bit location ...

Page 32

Register Set (Continued) Bit Bit Name 6 PERRSP Parity Error Response When set, DP83816 will assert PERRN on the detection of a data parity error when acting as the target, and will sample PERRN when acting as the initiator. ...

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Register Set (Continued) 4.1.4 Configuration Latency Timer Register This register gives status and controls such miscellaneous functions as BIST, Latency timer and Cache line size. Tag: CFGLAT Offset: 0Ch Bit Bit Name 31 BISTCAP BIST Capable Reads will always ...

Page 34

Register Set (Continued) 4.1.6 Configuration Memory Address Register This register specifies the Base Memory address which is required to build an address map during configuration. It also specifies the number of bytes required as well as an indication that ...

Page 35

Register Set (Continued) 4.1.8 Boot ROM Configuration Register Tag: CFGROM Offset: 30h Bit Bit Name 31-16 ROMBASE ROM Base Address Set to the base address for the boot ROM. 15-11 ROMSIZE ROM Size Set to 0 indicating a requirement ...

Page 36

Register Set (Continued) 4.1.10 Configuration Interrupt Select Register This register stores the interrupt line number as identified by the POST software that is connected to the interrupt controller as well as DP83816 desired settings for maximum latency and minimum ...

Page 37

Register Set (Continued) Bit Bit Name 24-22 AUX_CURRENT Aux_Current This 3 bit field reports the 3.3Vaux auxiliary current requirements for the PCI function. If PMEN generation from D3cold is not supported by the function(PMCAP[31]), this field returns a value ...

Page 38

Register Set (Continued) 4.2 Operational Registers The DP83816 provides the following set of operational registers mapped into PCI memory space or I/O space. Writes to reserved register locations are ignored. Reads to reserved register locations return undefined values. Offset ...

Page 39

Register Set (Continued) 4.2.1 Command Register This register is used for issuing commands to DP83816. These commands are issued by setting the corresponding bits for the function. A global software reset along with individual reset and enable/disable for transmitter ...

Page 40

Register Set (Continued) 4.2.2 Configuration and Media Status Register This register allows configuration of a variety of device and phy options, and provides phy status information. Tag: CFG Offset: 0004h Bit Bit Name 31 LNKSTS Link Status Link status ...

Page 41

Register Set (Continued) Bit Bit Name 10 PHY_RST Reset internal Phy Asserts reset to internal phy. Can be used to cause phy to reload options from the CFG register. This bit does not self clear when set. R/W 9 ...

Page 42

Register Set (Continued) 4.2.3 EEPROM Access Register The EEPROM Access Register provides an interface for software access to the NMC9306 style EEPROM The default values given assume that the EEDO line has a pullup resistor to VDD. Tag: MEAR ...

Page 43

Register Set (Continued) PMATCH[47:0] can be accessed via the combination of the RFCR (offset 0048h) and RFDR (offset 004Ch) registers. PMATCH holds the Ethernet address info. See Section 3.3.3. The lower 8 bits of the checksum value should be ...

Page 44

Register Set (Continued) 4.2.6 Interrupt Status Register This register indicates the source of an interrupt when the INTA pin goes active. Enabling the corresponding bits in the Interrupt Mask Register (IMR) allows bits in this register to produce an ...

Page 45

Register Set (Continued) Bit Bit Name 7 TXDESC Tx Descriptor This event is signaled after a transmit descriptor when the INTR bit in the CMDSTS field has been updated. 6 TXOK Tx Packet OK This event is signaled after ...

Page 46

Register Set (Continued) Bit Bit Name 20 RTABT Received Target Abort When this bit is 0, the corresponding bit in the ISR will not cause an interrupt. 19-17 unused 16 RXSOVR Rx Status FIFO Overrun When this bit is ...

Page 47

Register Set (Continued) 4.2.8 Interrupt Enable Register The Interrupt Enable Register controls the hardware INTR signal. Tag: IER Offset: 0018h Bit Bit Name 31-1 unused 0 IE Interrupt Enable When set to 1, the hardware INTR signal is enabled. ...

Page 48

Register Set (Continued) 4.2.10 Transmit Descriptor Pointer Register This register points to the current Transmit Descriptor. Tag: TXDP Offset: 0020h Bit Bit Name 31-2 TXDP Transmit Descriptor Pointer The current value of the transmit descriptor pointer. When the transmit ...

Page 49

Register Set (Continued) Bit Bit Name 27-26 IFG Interframe Gap Time This field allows the user to adjust the interframe gap time below the standard 9.6 960ns @100 Mb/s. The time can be programmed from 9.6 @100 Mb/s. Note ...

Page 50

Register Set (Continued) 4.2.12 Receive Descriptor Pointer Register This register points to the current Receive Descriptor. Tag: RXDP Offset: 0030h Bit Bit Name 31-2 RXDP Receive Descriptor Pointer The current value of the receive descriptor pointer. When the receive ...

Page 51

Register Set (Continued) 4.2.13 Receive Configuration Register This register is used to set the receive configuration for DP83816. Receive properties such as accepting error packets, runt packets, setting the receive drain threshold etc. are controlled here. Tag: RXCFG Offset: ...

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Register Set (Continued) Bit Bit Name 5-1 DRTH Rx Drain Threshold Specifies the drain threshold in units of 8 bytes. When the number of bytes in the receive FIFO reaches this value (times 8), or the FIFO contains a ...

Page 53

Register Set (Continued) 4.2.14.1 CLKRUNN Function CLKRUNN is a dual-function optional signal used by the central PCI clock resource to indicate clock status (i.e. PCI clock running normally or slowed/stopped), and it is used by PCI devices ...

Page 54

Register Set (Continued) 4.2.15 Wake Command/Status Register The WCSR register is used to configure/control and monitor the DP83816 Wake On LAN logic. The Wake On LAN logic is used to monitor the incoming packet stream while in a low-power ...

Page 55

Register Set (Continued) Bit Bit Name 5 WKPAT0 Wake on Pattern 0 match Enable wake on match of pattern 0. R/W 4 WKARP Wake on ARP Enable wake on ARP packet detection. R/W 3 WKBCP Wake on Broadcast Enable ...

Page 56

Register Set (Continued) 4.2.16 Pause Control/Status Register The PCR register is used to control and monitor the DP83816 Pause Frame reception logic. The Pause Frame reception Logic is used to accept 802.3x Pause Frames, extract the pause length value, ...

Page 57

Register Set (Continued) 4.2.17 Receive Filter/Match Control Register The RFCR register is used to control and configure the DP83816 Receive Filter Control logic. The Receive Filter Control Logic is used to configure destination address filtering of incoming packets. Tag: ...

Page 58

Register Set (Continued) Bit Bit Name 9-0 RFADDR Receive Filter Extended Register Address Selects which internal receive filter register is accessible via RFDR: Perfect Match Register (PMATCH) 000h 002h 004h Pattern Count Registers (PCOUNT) 006h 008h SecureOn Password Register ...

Page 59

Register Set (Continued) 4.2.19 Receive Filter Logic The Receive Filter Logic supports a variety of techniques for qualifying incoming packets. The most basic filtering options include Accept All Broadcast, Accept All Multicast and Accept All Unicast packets. These options ...

Page 60

Register Set (Continued) Pattern3Word7F Pattern2Word7F Pattern3Word7E Pattern2Word7E Pattern3Word1 Pattern2Word1 Pattern3Word0 Pattern2Word0 Pattern1Word3F Pattern0Word3F Pattern1Word3E Pattern0Word3E Pattern1Word1 Pattern0Word1 Pattern1Word0 Pattern0Word0 Bit# Figure 4-1 Pattern Buffer Memory - 180h words (word = 18bits) byte1 byte0 byte1 byte0 byte1 byte0 byte1 byte0 ...

Page 61

Register Set (Continued) Example: Pattern match on the following destination addresses: 02-00-03-01-04-02 12-10-13-11-14-12 22-20-23-21-24-22 32-30-33-31-34-32 set $PATBUF01 = 280 set $PATBUF23 = 300 # write counts iow l $RFCR (0006) iow l $RFDR (0406) iow l $RFCR (0008) iow ...

Page 62

Register Set (Continued) Accept on Multicast or Unicast Hash Multicast and Unicast addresses may be further qualified by use of the receive filter hash functions. An internal 512 bit (64 byte) RAM-based hash table is used to perform imperfect ...

Page 63

Register Set (Continued) 4.2.20 Boot ROM Address Register The BRAR is used to setup the address for an access to an external ROM/FLASH device. Tag: BRAR Offset: 0050h Bit Bit Name 31 AUTOINC Auto-Increment When set, the contents of ...

Page 64

Register Set (Continued) 4.2.23 Management Information Base Control Register The MIBC register is used to control access to the statistics block and the warning bits and to control the collection of management information statistics. Tag: MIBC Offset: 005ch Bit ...

Page 65

Register Set (Continued) 4.2.24 Management Information Base Registers The counters provide a set of statistics compliant with the following management specifications: MIB II, Ether-like MIB, and IEEE MIB. The values provided are accessed through the various registers as shown ...

Page 66

Register Set (Continued) 4.3 Internal PHY Registers The Internal Phy Registers are only 16 bits wide. Bits [31:16] are not used. In the following register definitions under the ‘Default’ heading, the following definitions hold true: — RW=Read Write access ...

Page 67

Register Set (Continued) Bit Bit Name 7 Collision Test Collision Test: Default Collision test enabled 0 = Normal operation When set, this bit will cause the COL signal to be asserted in response to the assertion ...

Page 68

... Organizationally Unique Identifier (OUI), the vendor's model number and the model revision number. A PHY may return a value of zero in each of the 32 bits of the PHY Identifier if desired. The PHY Identifier is intended to support network management. National Semiconductor's IEEE assigned OUI is 080017h. Tag: PHYIDR1 ...

Page 69

Register Set (Continued) Bit Bit Name 9 T4 100BASE-T4 Support: Default 100BASE-T4 is supported by the local device 0 = 100BASE-T4 not supported 8 TX_FD 100BASE-TX Full Duplex Support: Default: dependent on setting of the ANEG_SEL ...

Page 70

Register Set (Continued) Bit Bit Name 5 10 10BASE-T Support 10BASE-T is supported by the Link Partner 0 = 10BASE-T not supported by the Link Partner 4:0 Selector Protocol Selection Bits: Link Partners’s binary encoded protocol selector. ...

Page 71

Register Set (Continued) Bit Bit Name 12 ACK2 Acknowledge2: Default Will comply with message 0 = Cannot comply with message Acknowledge2 is used by the next page function to indicate that Local Device has the ability ...

Page 72

Register Set (Continued) Bit Bit Name 6 Remote Fault Remote Fault Remote Fault condition detected (cleared on read of BMSR (address 0x84) register or by reset). Fault criteria: notification from Link Partner of Remote Fault via Auto-Negotiation ...

Page 73

Register Set (Continued) 4.3.10 MII Interrupt Control Register This register implements the MII Interrupt PHY Specific Control register. Sources for interrupt generation include: Link State Change, Jabber Event, Remote Fault, Auto-Negotiation Complete or any of the counters becoming half-full. ...

Page 74

Register Set (Continued) 4.3.12 False Carrier Sense Counter Register This counter provides information required to implement the “FalseCarriers” attribute within the MAU managed object class of Clause 30 of the IEEE 802.3u specification. Tag: FCSCR Offset: 00D0h Bit Bit ...

Page 75

Register Set (Continued) Bit Bit Name 8 SD_OPTION Signal Detect Option Enhanced signal detect algorithm 0 = Reduced signal detect algorithm 7:6 Reserved Reserved: Read FORCE_100_OK Force 100 Mb/s Good Link Forces ...

Page 76

Register Set (Continued) 4.3.16 10BASE-T Status/Control Register Tag: TBTSCR Offset: 00E8h Bit Bit Name 15:9 Unused 8 LOOPBACK_10_DIS 10BASE-T Loopback Disable: This bit is OR’ed with bit 14 (Loopback) in the BMCR Mb/s Loopback is enabled ...

Page 77

Buffer Management The buffer management scheme used on the DP83816 allows quick, simple and efficient use of the frame buffer memory. Frames are saved in similar formats for both transmit and receive. The buffer management scheme also uses separate ...

Page 78

Buffer Management (Continued Packet OK 26-16 --- 15-12 11-0 SIZE Descriptor Byte Count Set to the size in bytes of the data. Bit Tag Description 26 TXA Transmit Abort 25 TFU Transmit FIFO Underrun 24 CRS Carrier ...

Page 79

Buffer Management (Continued) Bit Tag Description 26 RXA Receive Aborted 25 RXO Receive Overrun 24-23 DEST Destination Class 22 LONG Too Long Packet Received 21 RUNT Runt Packet Received The size of the receive packet was less than 64 ...

Page 80

Buffer Management (Continued) 5.1.3 Multiple Descriptor Packets A single packet may also cross descriptor boundaries. This is indicated by setting the MORE bit in all descriptors except the last one in the packet. Ethernet applications (bridges, switches, routers, etc.) ...

Page 81

Buffer Management (Continued) 5.2 Transmit Architecture The following figure illustrates the transmit architecture of the DP83816 10/100 Ethernet Controller. Software/Memory Transmit Descriptor link cmdsts ptr Packet When the CR:TXE bit is set to 1 (regardless of the current state), ...

Page 82

Buffer Management (Continued) State Event txIdle CR:TXE && !CTDD CR:TXE && CTDD txDescRefr XferDone txDescRead XferDone && OWN XferDone && !OWN txFIFOblock FifoAvail (descCnt == 0) && MORE (descCnt == 0) && !MORE txFragRead XferDone txDescWrite XferDone txAdvance link ...

Page 83

Buffer Management (Continued) 5.2.2 Transmit Data Flow In the DP83816 transmit architecture, packet transmission involves the following steps: 1. The device driver receives packets from an upper layer available DP83816 transmit descriptor is allocated. The fragment information ...

Page 84

Buffer Management (Continued) 5.3 Receive Architecture The receive architecture is as "symmetrical" to the transmit architecture as possible. The receive buffer manager prefetches receive descriptors to prepare for incoming Receive Descriptor List link link cmdsts cmdsts ptr ptr When ...

Page 85

Buffer Management (Continued) State Event rxIdle CR:RXE && !CRDD CR:RXE && CRDD rxDescRefr XferDone rxDescRead XferDone && !OWN XferDone && OWN rxFIFOblock FifoReady (descCnt == 0) && (rxPktBytes > 0) rxPktBytes == 0 rxFragWrite XferDone rxDescWrite XferDone rxAdvance link!= ...

Page 86

Buffer Management (Continued) CR:RXE && CRDD rxDescRefr XferDone link = NULL rxAdvance XferDone rxDescWrite 5.3.2 Receive Data Flow With a bus mastering architecture, some number of buffers and descriptors for received packets must be pre-allocated when the DP83816 is ...

Page 87

Power Management and Wake-On-LAN 6.1 Introduction The DP83816 supports Wake-On-LAN (WOL) and the PCI Power Management Specification version 1.1. These features allow the device to enter a power saving mode, and to signal the system to return to a ...

Page 88

Power Management and Wake-On-LAN 6.4.1 D0 State The D0 state is the normal operational state of the device. The PME Enable bit should be set prevent packet filtering based on the settings in the Wake Control/Status ...

Page 89

Power Management and Wake-On-LAN 6.5.2 Wake Events If the device detects a wake event while in WOL mode, it will assert the PMEN pin low to signal the system that a wake event has occurred. The system should then ...

Page 90

DC and AC Specifications Absolute Maximum Ratings Supply Voltage ( Input Voltage ( Output Voltage (V ) OUT Storage Temperature Range (T ) STG Power Dissipation ( Lead Temp ...

Page 91

DC and AC Specifications 7.2 AC Specifications 7.2.1 PCI Clock Timing PCICLK Number PCICLK Low Time 7.2.1.1 PCICLK High Time 7.2.1.2 PCICLK Cycle Time 7.2.1.3 7.2.2 X1 Clock Timing X1 Number X1 Low Time 7.2.2.1 X1 High Time 7.2.2.2 ...

Page 92

DC and AC Specifications 7.2.3 Power On Reset (PCI Active) Power Stable RSTN PCICLK Number RSTN Active Duration from PCICLK 7.2.3.1 stable Reset Disable to 1st PCI Cycle 7.2.3.2 EE Enabled EE Disabled Note: Minimum reset complete time is ...

Page 93

DC and AC Specifications 7.2.5 POR PCI Inactive VDD T1 EESEL TPRD Number VDD stable to EE access 7.2.5.1 VDD indicates the digital supply (AUX power plane, except PCI bus power.) Guaranteed by design. EE Configuration load duration 7.2.5.2 ...

Page 94

DC and AC Specifications 7.2.6 PCI Bus Cycles The following table parameters apply to ALL the PCI Bus Cycle Timing Diagrams contained in this section. Number Input Setup Time 7.2.6.1 Input Hold Time 7.2.6.2 Output Valid Delay 7.2.6.3 Output ...

Page 95

DC and AC Specifications PCI Configuration Write PCICLK T1 T2 FRAMEN AD[31:0] Addr C/BEN[3:0] Cmd T2 T1 IDSEL T1 IRDYN TRDYN DEVSELN T1 T2 PAR PERRN PCI Bus Master Read PCICLK T3 T3 ...

Page 96

DC and AC Specifications PCI Bus Master Write PCICLK T3 FRAMEN T3 AD[31:0] Addr T3 C/BEN[3:0] Cmd IRDYN TRDYN DEVSELN PAR PERRN PCI Target Read PCICLK T2 T1 FRAMEN T1 T2 AD[31:0] Addr C/BEN[3:0] Cmd BE ...

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DC and AC Specifications PCI Target Write PCICLK T1 T2 FRAMEN AD[31:0] Addr C/BEN[3:0] Cmd T1 IRDYN TRDYN DEVSELN T1 T2 PAR PERRN PCI Bus Master Burst Read PCICLK T3 FRAMEN T4 T3 ...

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DC and AC Specifications PCI Bus Master Burst Write PCICLK T3 FRAMEN T3 AD[31:0] Addr T3 C/BEN[3:0] Cmd IRDYN TRDYN DEVSELN PAR PERRN PCI Bus Arbitration PCICLK T5 REQN GNTN (Continued Data Data Data T4 ...

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DC and AC Specifications 7.2.7 EEPROM Auto-Load EECLK EESEL EEDO EEDI Number EECLK Cycle Time 7.2.7.1 EECLK Delay from EESEL Valid 7.2.7.2 EECLK Low to EESEL Invalid 7.2.7.3 EECLK to EEDO Valid 7.2.7.4 EEDI Setup Time to EECLK 7.2.7.5 ...

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DC and AC Specifications 7.2.8 Boot PROM/FLASH T13 MCSN T17 MRDN MA[15:0] MD[7:0] MWRN Number Data Setup Time to MRDN Invalid 7.2.8.1 Address Setup Time to MRDN 7.2.8.2 Address Hold Time from MRDN Invalid 7.2.8.3 Address Invalid from MWRN ...

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DC and AC Specifications 7.2.9 100BASE-TX Transmit TPTD+/− T2 TPTD+/− eye pattern Parameter Description 100 Mb/s TPTD+/− Rise and 7.2.9.1 Fall Times 100 Mb/s Rise/Fall Mismatch 100 Mb/s TPTD+/− 7.2.9.2 Transmit Jitter Note: Normal Mismatch is the difference between ...

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DC and AC Specifications 7.2.10 10BASE-T Transmit End of Packet TPTD+/- TPTD+/- Parameter Description End of Packet High Time 7.2.10.1 (with ‘0’ ending bit) End of Packet High Time 7.2.10.2 (with ‘1’ ending bit) 7.2.11 10 Mb/s Jabber Timing ...

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DC and AC Specifications 7.2.12 10BASE-T Normal Link Pulse Parameter Description Pulse Width 7.2.12.1 Pulse Period 7.2.12.2 Note: These specifications represent both transmit and receive timings 7.2.13 Auto-Negotiation Fast Link Pulse (FLP) T1 Fast Link Pulse(s) Parameter Description Clock, ...

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DC and AC Specifications 7.2.14 Media Independent Interface (MII) MDC MDIO(output) MDIO(input) RXCLK RXD[3:0] RXDV,RXER TXCLK TXD[3:0] TXEN Number MDC to MDIO Valid 7.2.14.1 MDIO to MDC Setup 7.2.14.2 MDIO from MDC Hold 7.2.14.3 RXD to RXCLK Setup 7.2.14.4 ...

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Notes: 105 www.national.com ...

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... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no “Banned Substances” as defined in CSP-9-111S2. ...

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