LAN88710BM_samples SMSC, LAN88710BM_samples Datasheet
LAN88710BM_samples
Specifications of LAN88710BM_samples
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LAN88710BM_samples Summary of contents
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... In-Vehicle engineering development interface Vehicle manufacturing test interface (production plant assembly line) Legislated inspections (emissions check, safety inspections) SMSC LAN88710AM/LAN88710BM LAN88710AM/LAN88710BM Key Benefits High-performance 10/100 Ethernet transceiver — Compliant with IEEE802.3/802.3u (Fast Ethernet) — Compliant with ISO 802-3/IEEE 802.3 (10BASE-T) — ...
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... Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC’ ...
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... Collision Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.8.8 Link Integrity Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.8.9 Loopback Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 3.9 Application Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 3.9.1 Simplified System Level Application Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 3.9.2 Power Supply Diagram (1.2 V Supplied by Internal Regulator 3.9.3 Power Supply Diagram (1.2 V Supplied by External Source SMSC LAN88710AM/LAN88710BM 3 DATASHEET Revision 1.1 (05-26-10) ...
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... Power-On nRST & Configuration Strap Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 5.6.4 MII Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 5.6.5 RMII Interface Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 5.6.6 SMI Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 5.7 Clock Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Chapter 6 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Chapter 7 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 4 DATASHEET Datasheet SMSC LAN88710AM/LAN88710BM ...
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... Figure 5.1 Output Equivalent Test Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Figure 5.2 Power Sequence Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Figure 5.3 Power-On nRST & Configuration Strap Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Figure 5.4 MII Transmit Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Figure 5.5 MII Receive Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Figure 5.6 RMII Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Figure 5.7 SMI Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 SMSC LAN88710AM/LAN88710BM 5 DATASHEET Revision 1.1 (05-26-10) ...
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... Table 5.11 RMII Timing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Table 5.12 RMII CLKIN (REF_CLK) Timing Values Table 5.13 SMI Timing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Table 5.14 Crystal Specifications Table 7.1 Customer Revision History Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 6 DATASHEET Datasheet SMSC LAN88710AM/LAN88710BM ...
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... V supply utilizing an integrated 3 1.2 V linear regulator. The linear regulator may be optionally disabled, allowing usage of a high efficiency external regulator for lower system power dissipation. SMSC LAN88710AM/LAN88710BM 8 bits First In First Out buffer; often used for elasticity buffer ...
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... PLL Receiver Squeltch Logic & Filters 10M PLL Figure 1.2 Architectural Overview 8 DATASHEET Datasheet Figure 1.1. Transformer RJ45 HP Auto-MDIX TXP/TXN RXP/RXN MDIX Control XTAL1/CLKIN PLL XTAL2 Interrupt nINT Generator LED1 LEDs LED2 RBIAS Central Bias PHY Address PHYAD[0:2] Latches SMSC LAN88710AM/LAN88710BM ...
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... Note: When a lower case “n” is used at the beginning of the signal name, it indicates that the signal is active low. For example, nRST indicates that the reset signal is active low. Note: The buffer type for each signal is indicated in the BUFFER TYPE column. A description of the buffer types is provided in SMSC LAN88710AM/LAN88710BM ...
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... Refer to Section 3.8.1.2, "nINTSEL and LED2 Polarity Selection," on page 42 details on how the nINTSEL configuration strap is used to determine the function of this pin. This signal is not used in RMII mode. This signal is not used in RMII mode. SMSC LAN88710AM/LAN88710BM for ...
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... Configuration 1 Strap Receive Data 3 (MII Mode) PHY Address 2 1 Configuration Strap SMSC LAN88710AM/LAN88710BM Table 2.1 MII/RMII Signals (continued) BUFFER SYMBOL TYPE RXD0 VO8 Bit 0 of the RMII mode) data bits that are sent by the transceiver on the receive path. MODE0 VIS Combined with MODE1 and MODE2, this configuration strap sets the default PHY mode ...
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... Unless configured to the Symbol Interface mode, this pin functions as RXER. for more information on Refer to Section 3.7.1, "PHYAD[2:0]: PHY Address Configuration," on page 37 for additional information. for more information on Refer to Section 3.7.1, "PHYAD[2:0]: PHY Address Configuration," on page 37 for additional information. SMSC LAN88710AM/LAN88710BM ...
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... Configuration strap values are latched on power-on reset and system reset. Configuration straps are identified by an underlined symbol name. Signals that function as configuration straps must be augmented with an external resistor when connected to a load. Refer to Section 3.7, "Configuration Straps," on page 37 SMSC LAN88710AM/LAN88710BM Table 2.1 MII/RMII Signals (continued) BUFFER SYMBOL ...
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... Internal +1.2 V Regulator Configuration," on page 39 for additional details. Refer to Section 3.8.1, "LEDs," on page 41 for additional LED information. for more information on Refer to See Section 3.8.1.2, "nINTSEL and LED2 Polarity Selection," on page 42 for additional information. for additional information. SMSC LAN88710AM/LAN88710BM ...
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... NUM PINS NAME External Crystal Input 1 External Clock Input External 1 Crystal Output External 1 Reset SMSC LAN88710AM/LAN88710BM BUFFER SYMBOL TYPE MDIO VIS/ Serial Management Interface data input/output VOD8 MDC VIS Serial Management Interface clock Table 2.4 Ethernet Pins BUFFER SYMBOL TYPE TXP ...
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... Common ground. This exposed pad must be connected to the ground plane with a via array. 16 DATASHEET Datasheet DESCRIPTION The nominal voltage is 1.2 V and the resistor will dissipate approximately power. DESCRIPTION A 1 µF decoupling capacitor to ground should be used on this pin when using the internal 1.2 V regulator. SMSC LAN88710AM/LAN88710BM ...
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... PIN NUM PIN NAME 1 VDD2A 2 LED2/nINTSEL 3 LED1/REGOFF 4 XTAL2 5 XTAL1/CLKIN 6 VDDCR 7 RXCLK/PHYAD1 8 RXD3/PHYAD2 9 RXD2/RMIISEL 10 RXD1/MODE1 11 RXD0/MODE0 12 VDDIO 13 RXER/RXD4/PHYAD0 14 CRS 15 COL/CRS_DV/MODE2 16 MDIO SMSC LAN88710AM/LAN88710BM PIN NUM PIN NAME 17 18 nINT/TXER/TXD4 DATASHEET MDC nRST TXCLK TXEN TXD0 TXD1 TXD2 TXD3 RXDV VDD1A TXN TXP ...
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... Note: Sink and source capabilities are dependant on the VDDIO voltage. Refer to "Absolute Maximum Ratings*," on page 65 Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications Table 2.9 Buffer Types DESCRIPTION Section 5.1, "Absolute Maximum Ratings*," on for additional information. 18 DATASHEET Datasheet Section 5.1, SMSC LAN88710AM/LAN88710BM ...
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... The 100BASE-TX transmit data path is shown below. Each major block is explained in the following subsections. TX_CLK (for MII only) MAC Ext Ref_CLK (for RMII only) MII 25 MHz by 4 bits or RMII 50 MHz by 2 bits 125 Mbps Serial Converter SMSC LAN88710AM/LAN88710BM PLL 4B/5B 25 MHz MII/RMII by 4 bits Encoder NRZI MLT-3 NRZI MLT-3 ...
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... Sent after /T/R until TXEN Sent for rising TXEN 20 DATASHEET Datasheet Table 3.1. Each 4-bit data- TRANSMITTER INTERPRETATION 0 0000 DATA 1 0001 2 0010 3 0011 4 0100 5 0101 6 0110 7 0111 8 1000 9 1001 A 1010 B 1011 C 1100 D 1101 E 1110 F 1111 SMSC LAN88710AM/LAN88710BM ...
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... MHz NRZI data stream. The NRZI is encoded to MLT-3. MLT tri-level code where a change in the logic level represents a code bit “1” and the logic output remaining at the same level represents a code bit “0”. SMSC LAN88710AM/LAN88710BM Table 3.1 4B/5B Code Table (continued) RECEIVER ...
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... Phase Lock Loop (PLL) The 100M PLL locks onto reference clock and generates the 125 MHz clock used to drive the 125 MHz logic and the 100BASE-TX transmitter. Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 22 DATASHEET Datasheet SMSC LAN88710AM/LAN88710BM ...
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... This clock is used to extract the serial data from the received signal. 3.1.2.3 NRZI and MLT-3 Decoding The DSP generates the MLT-3 recovered levels that are fed to the MLT-3 converter. The MLT-3 is then converted to an NRZI data stream. SMSC LAN88710AM/LAN88710BM PLL 25 MHz by 4 bits 4B/5B ...
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... J K CLEAR-TEXT RX_CLK RX_DV RXD Figure 3.1 Relationship Between Received Data and Specific MII Signals Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications data data data data data data data data 24 DATASHEET Datasheet Idle T R SMSC LAN88710AM/LAN88710BM ...
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... MHz. The controller samples the data on the rising edge of XTAL1/CLKIN (REF_CLK). To ensure that the setup and hold requirements are met, the nibbles are clocked out of the transceiver on the falling edge of XTAL1/CLKIN (REF_CLK). SMSC LAN88710AM/LAN88710BM 25 DATASHEET Revision 1.1 (05-26-10) ...
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... The Manchester-encoded data is sent to the analog transmitter where it is shaped and filtered before being driven out as a differential signal across the TXP and TXN outputs. Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 44, for more details. 26 DATASHEET Datasheet SMSC LAN88710AM/LAN88710BM ...
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... Special logic is used to detect the jabber state and abort the transmission to the line within 45 ms. Once TXEN is deasserted, the logic resets the jabber condition. As shown in Section 4.2.2, "Basic Status Register," on page jabber condition was detected. SMSC LAN88710AM/LAN88710BM XPOL bit of the Special Control/Status Indications 55, the ...
Page 28
... Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications bits of the PHY Special Control/Status Register. The auto-negotiation protocol is a purely physical layer bit of the Basic Control Register Register. 28 DATASHEET Datasheet Register, as well as in the Auto Auto Negotiation Advertisement Auto SMSC LAN88710AM/LAN88710BM ...
Page 29
... Once the break_link_timer is completed in the auto-negotiation state-machine (approximately 1200 ms), auto-negotiation will re-start. In this case, the link partner will have also dropped the link due to lack of a received signal too will resume auto-negotiation. SMSC LAN88710AM/LAN88710BM for additional information. Auto Negotiation Advertisement Register ...
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... Not Used 7 7 Not Used Not Used DATASHEET Datasheet bit of the Basic Control Basic Figure 3.2, the device’s Auto-MDIX bit in the Special Control/Status signaling 1 TXP TXN 2 RXP 3 4 Not Used Not Used 5 RXN 6 Not Used 7 Not Used 8 Cross-Over Cable SMSC LAN88710AM/LAN88710BM ...
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... On the receive path, the transceiver drives both the receive data, RXD[3:0], and the RXCLK signal. The controller clocks in the receive data on the rising edge of RXCLK when the transceiver drives RXDV high. The transceiver drives RXER high when a receive error is detected. SMSC LAN88710AM/LAN88710BM Section 3.4.3, "MII vs. RMII Configuration," on page 33 31 ...
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... However, on the receive data path, the receiver recovers the clock from the incoming data stream, and the device uses elasticity buffering to accommodate for differences between the recovered clock and the local REF_CLK. Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 32 DATASHEET Datasheet SMSC LAN88710AM/LAN88710BM ...
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... Note 3.2 The RXER signal is optional on the RMII bus. This signal is required by the transceiver, but it is optional for the MAC. The MAC can choose to ignore or not use this signal. SMSC LAN88710AM/LAN88710BM 39. Table 3.2, "MII/RMII Signal Mapping" Table 3.2 MII/RMII Signal Mapping ...
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... The timing relationships of the MDIO signals are Read Cycle PHY Address Register Address Data To Phy Write Cycle PHY Address Register Address Data To Phy 34 DATASHEET Datasheet Chapter 4, "Register Descriptions," 76. ... ... D1 D15 D14 Turn Data Around Data From Phy ... ... D15 D14 D1 Turn Data Around SMSC LAN88710AM/LAN88710BM D0 D0 ...
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... ENERGYON goes low when the Cable is unplugged. To prevent an unexpected assertion of nINT, the ENERGYON interrupt mask should always be cleared as part of the ENERGYON interrupt service routine. SMSC LAN88710AM/LAN88710BM Table 3.3 Interrupt Management Table EVENT TO INTERRUPT SOURCE ASSERT nINT 17 ...
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... Interrupt Mask Register will also read ENERGYON and INT7 will clear within SMSC LAN88710AM/LAN88710BM to ...
Page 37
... The user can configure the PHY address using Software Configuration if an address greater than 7 is required. The PHY address can be written (after SMI communication at some address is established) using the straps are multiplexed with other signals as shown in SMSC LAN88710AM/LAN88710BM Section 5.6.3, "Power-On nRST & Configuration Strap Timing," on PHYAD bits of the ...
Page 38
... Table 3.7 Pin Names for Mode Bits MODE BIT PIN NAME MODE[0] RXD0/MODE0 MODE[1] RXD1/MODE1 MODE[2] COL/CRS_DV/MODE2 38 DATASHEET Datasheet DEFAULT REGISTER BIT VALUES REGISTER 0 REGISTER 4 [13,12,10,8] [8,7,6,5] 0000 N/A 0001 N/A 1000 N/A 1001 N/A 1100 0100 1100 0100 N/A N/A X10X 1111 Table SMSC LAN88710AM/LAN88710BM 3.7. ...
Page 39
... REGOFF configuration strap as described in the internal +1.2 V regulator is enabled when REGOFF is floating (due to the internal pull-down resistor). During power-on, if REGOFF is sampled below V turn on and operate with power from the VDD2A pin. SMSC LAN88710AM/LAN88710BM MIIMODE bit of the Special Modes Register ...
Page 40
... LED polarity. Refer to LED2 Polarity Selection," on page 42 nINTSEL and the LED2 polarity. Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications for additional information on the relation between 40 DATASHEET Datasheet Section 3.8.1.2, "nINTSEL and SMSC LAN88710AM/LAN88710BM ...
Page 41
... LED1/REGOFF Figure 3.5 LED1/REGOFF Polarity Configuration Note: Refer to Section 3.7.4, "REGOFF: Internal +1.2 V Regulator Configuration," on page 39 additional information on the REGOFF configuration strap. SMSC LAN88710AM/LAN88710BM and Section 3.8.1.2, "nINTSEL and LED2 Polarity Figure 3.5 REGOFF = 0 (Regulator ON) LED output = Active High LED1/REGOFF Ω ...
Page 42
... LED2 polarity for each nINTSEL configuration. nINTSEL = 0 LED output = Active High 10K Power Down Power Down bit is “1”. When the Power Down 42 DATASHEET Datasheet LED2/nINTSEL Ω ~270 for additional for additional information. bit of the Basic Control Register. In this bit is cleared, the transceiver SMSC LAN88710AM/LAN88710BM ...
Page 43
... A Software reset is activated by setting the registers bits, except those indicated as “NASR” in the register definitions, are cleared by a Software reset. The Soft Reset reset process will be completed within 0.5 s from the setting of this bit. SMSC LAN88710AM/LAN88710BM EDPWRDOWN ENERGYON bit of the Mode Control/Status Register ...
Page 44
... When the 10/100 digital block is in 10BASE-T mode, the link status is derived from the 10BASE-T receiver logic. Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications Collision Test bit of the and to drive the LINK LED (LED1). 44 DATASHEET Datasheet Basic Control Register to “1”. This Link Status bit in SMSC LAN88710AM/LAN88710BM ...
Page 45
... The digital interface signals on the local MAC interface are isolated. Far-end system TXD 10/100 X Ethernet RXD MAC X Digital Ethernet Transceiver SMSC LAN88710AM/LAN88710BM Figure 3.7. The near-end loopback mode is enabled by Basic Control Register to “1”. A large percentage of the digital circuitry Basic Control Register. The transmitters are powered down regardless ...
Page 46
... Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications Figure 3.9. An RJ45 loopback cable can be used to route the transmit signals TX XFMR RX Analog SMSC 46 DATASHEET Datasheet RJ45 Loopback Cable. Created by connecting pin 1 to pin 3 and connecting pin 2 to pin 6. SMSC LAN88710AM/LAN88710BM ...
Page 47
... LAN88710AM/LAN88710BM MII MDIO MDC nINT TXD[3:0] 4 TXCLK TXER TXEN RXD[3:0] 4 RXCLK RXDV LED[2:1] 2 nRST Interface Figure 3.10 Simplified System Level Application Diagram SMSC LAN88710AM/LAN88710BM 10/100 PHY 32-QFN MII TXP TXN RXP RXN XTAL1/CLKIN XTAL2 47 DATASHEET Mag RJ45 25 MHz Revision 1.1 (05-26-10) ...
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... Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications LAN88710AM/LAN88710BM 32-QFN Core Logic VDDCR Internal OUT Regulator VDDIO Ch.1: 3.3 V Circuitry C BYPASS LED1/ REGOFF ~270 Ω 48 DATASHEET Datasheet Power Supply 3.3 V Ch.2: 3.3 V Circuitry VDD2A IN C BYPASS VDD1A C BYPASS RBIAS 12.1k VSS SMSC LAN88710AM/LAN88710BM ...
Page 49
... Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications Datasheet 3.9.3 Power Supply Diagram (1.2 V Supplied by External Source) VDDCR Supply 1 VDDDIO Supply 1 Figure 3.12 Power Supply Diagram (1.2 V Supplied by External Source) SMSC LAN88710AM/LAN88710BM LAN88710AM/LAN88710BM 32-QFN Core Logic Internal VDDCR OUT Regulator (Disabled) VDDIO C BYPASS LED1/ REGOFF ...
Page 50
... TXP TXN RXP RXN Figure 3.13 Twisted-Pair Interface Diagram (Single Power Supply) Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications Ferrite Bead Ω 49.9 Resistors C BYPASS C BYPASS C BYPASS 50 DATASHEET Datasheet Magnetics Ω 75 Ω 75 1000 SMSC LAN88710AM/LAN88710BM RJ45 ...
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... Datasheet 3.9.5 Twisted-Pair Interface Diagram (Dual Power Supplies) LAN88710AM/ Power LAN88710BM Supply 3.3 V 32-QFN VDD2A VDD1A TXP TXN RXP RXN Figure 3.14 Twisted-Pair Interface Diagram (Dual Power Supplies) SMSC LAN88710AM/LAN88710BM Ω 49.9 Resistors C BYPASS C BYPASS C BYPASS 51 DATASHEET Power Supply 2 3.3 V Magnetics Ω ...
Page 52
... R/W: Can be written. Will return current setting on a read. R/WAC: Will return current setting on a read. Writing anything clears the bit. Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications Table 4.1 Register Bit Types REGISTER BIT DESCRIPTION 52 DATASHEET Datasheet SMSC LAN88710AM/LAN88710BM ...
Page 53
... Mode Control/Status Register 18 Special Modes 26 Symbol Error Counter Register 27 Control / Status Indication Register 29 Interrupt Source Register 30 Interrupt Mask Register 31 PHY Special Control/Status Register SMSC LAN88710AM/LAN88710BM Table 4.2 SMI Register Map REGISTER NAME 53 DATASHEET GROUP Basic Basic Extended Extended Extended Extended Extended ...
Page 54
... Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 0 Size: 16 bits DESCRIPTION Section 3.7.2, 38) is set from the register bit 54 DATASHEET Datasheet TYPE DEFAULT R R/W 0b R/W Note 4.1 R/W Note 4.1 R/W 0b R R/W Note 4.1 R for additional information. SMSC LAN88710AM/LAN88710BM ...
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... Link Status 0 = link is down 1 = link Jabber Detect jabber condition detected 1 = jabber condition detected 0 Extended Capabilities 0 = does not support extended capabilities registers 1 = supports extended capabilities registers SMSC LAN88710AM/LAN88710BM 1 Size: 16 bits DESCRIPTION 55 DATASHEET TYPE DEFAULT ...
Page 56
... The default value of this field will vary dependant on the silicon revision number. Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 2 Size: 16 bits DESCRIPTION 3 Size: 16 bits DESCRIPTION 56 DATASHEET Datasheet TYPE DEFAULT R/W 0007h TYPE DEFAULT R/W 110000b R/W 001111b R/W Note 4.2 SMSC LAN88710AM/LAN88710BM ...
Page 57
... Mbps with full duplex 5 10BASE Mbps ability Mbps able 4:0 Selector Field 00001 = IEEE 802.3 Note 4.3 The default value of this bit is determined by the MODE[2:0] configuration straps. Refer to Section 3.7.2, "MODE[2:0]: Mode Configuration," on page 38 SMSC LAN88710AM/LAN88710BM 4 Size: 16 bits DESCRIPTION 57 DATASHEET TYPE DEFAULT RO - ...
Page 58
... Mbps with full duplex ability Mbps with full duplex 5 10BASE Mbps ability Mbps able 4:0 Selector Field 00001 = IEEE 802.3 Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 5 Size: 16 bits DESCRIPTION 58 DATASHEET Datasheet TYPE DEFAULT 00001b SMSC LAN88710AM/LAN88710BM ...
Page 59
... Page Received 0 = new page not yet received 1 = new page received 0 Link Partner Auto-Negotiation Able 0 = link partner does not have auto-negotiation ability 1 = link partner has auto-negotiation ability SMSC LAN88710AM/LAN88710BM 6 Size: 16 bits DESCRIPTION 59 DATASHEET TYPE DEFAULT RO ...
Page 60
... Refer to Power-Down," on page 43 0 RESERVED Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 17 Size: DESCRIPTION for additional for additional Section 3.8.3.2, "Energy Detect for additional information. 60 DATASHEET Datasheet 16 bits TYPE DEFAULT R/W 0b SMSC LAN88710AM/LAN88710BM ...
Page 61
... This counter increments up to 65,536 (2 rolls over to 0 after reaching the maximum value. Note: This register is cleared on reset, but is not cleared by reading the register. This register does not increment in 10BASE-T mode. SMSC LAN88710AM/LAN88710BM 18 Size: DESCRIPTION Section 3.7.3, 39: Section 3.7.2, " ...
Page 62
... MDI (TX transmits, RX receives MDIX (TX receives, RX transmits) 12:11 RESERVED 10:5 RESERVED 4 XPOL Polarity state of the 10BASE- normal polarity 1 = reversed polarity 3:0 RESERVED Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 27 Size: 16 bits DESCRIPTION 62 DATASHEET Datasheet TYPE DEFAULT R R SMSC LAN88710AM/LAN88710BM ...
Page 63
... Index (In Decimal): BITS 15:8 RESERVED 7:1 Mask Bits 0 = interrupt source is masked interrupt source is enabled. Note: Refer to Section 4.2.12, "Interrupt Source Flag Register," on page 63 for details on the corresponding interrupt definitions. 0 RESERVED SMSC LAN88710AM/LAN88710BM 29 Size: 16 bits DESCRIPTION 30 Size: 16 bits DESCRIPTION 63 DATASHEET TYPE DEFAULT RO - ...
Page 64
... Speed Indication HCDSPEED value: 001 = 10BASE-T half-duplex 101 = 10BASE-T full-duplex 010 = 100BASE-TX half-duplex 110 = 100BASE-TX full-duplex 1:0 RESERVED Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications 31 Size: 16 bits DESCRIPTION 64 DATASHEET Datasheet TYPE DEFAULT R/W 0000010b RO XXX RO - SMSC LAN88710AM/LAN88710BM ...
Page 65
... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Functional operation of the device at any condition exceeding those indicated in Section 5.2, "Operating applicable section of this specification is not implied. Note, device signals are NOT 5.0 V tolerant unless specified otherwise. SMSC LAN88710AM/LAN88710BM (Note 5. -0 +3.6 V (Note 5. -0 +1.5 V (Note 5 ...
Page 66
... Table 5.1 Package Thermal Parameters VALUE UNITS o Θ 45.3 C/W Measured in still air from the die to ambient air JA o Ψ 0.6 C/W Measured in still air JT 66 DATASHEET Datasheet Note 5.4 .Note 5 +105 C for automotive grade +125 C for automotive grade COMMENTS SMSC LAN88710AM/LAN88710BM ...
Page 67
... LEDs. The Ethernet component current is typically 100BASE-TX mode and 100 mA in 10BASE-T mode, independent of the 2 3.3 V supply rail of the transformer. Note 5.6 Calculated with full flexPWR features activated: VDDIO = 1.8 V and internal regulator is disabled. SMSC LAN88710AM/LAN88710BM Section 3.8.3, "Power-Down Modes," on page 42 VDDA3.3 VDDCR POWER ...
Page 68
... I/O buffer characteristics. Typical values are MIN TYP MAX -0.3 3.6 1.01 1.19 1.39 1.39 1.59 1.79 336 399 459 - 0.4 VDD2A - 0.4 -0.3 0.35 1.4 VDD2A + 0.4 68 DATASHEET Datasheet UNITS NOTES Schmitt trigger V Schmitt trigger mV µA Note 5 - Note 5 SMSC LAN88710AM/LAN88710BM ...
Page 69
... Duty Cycle Distortion Overshoot and Undershoot Jitter Note 5.10 Measured at line side of transformer, line replaced by 100 Ω (±1%) resistor. Note 5.11 Offset from 16 ns pulse width at 50% of pulse peak. Note 5.12 Measured differentially. SMSC LAN88710AM/LAN88710BM 1.8 V 2.5 V 3.3 V MIN TYP TYP TYP -0 ...
Page 70
... Figure 5.1 below. Revision 1.1 (05-26-10) Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications SYMBOL MIN V 2.2 OUT V 300 DS OUTPUT 25 pF Figure 5.1 Output Equivalent Test Load 70 DATASHEET Datasheet TYP MAX UNITS NOTES 2.5 2.8 V Note 5.13 420 585 mV SMSC LAN88710AM/LAN88710BM ...
Page 71
... Note: When the internal regulator is disabled, a power-up sequencing relationship exists between VDDCR and the 3.3 V power supply. For additional information refer to "REGOFF: Internal +1.2 V Regulator Configuration," on page SMSC LAN88710AM/LAN88710BM . Device power supplies can turn off in any order provided; they all reach pon ...
Page 72
... DESCRIPTION for details. Configuration straps must only be pulled high or 72 DATASHEET Datasheet css for additional t rstia t t css csh t odad MIN TYP MAX UNITS 25 0 100 200 800 (Note 5.14) Section 3.7, SMSC LAN88710AM/LAN88710BM and t csh ms ns μ ...
Page 73
... TXD[3:0], TXEN output valid from rising edge of val TXCLK t TXD[3:0], TXEN output hold from rising edge of hold TXCLK Note 5. for 100BASE-TX operation, 400 ns for 10BASE-T operation. Note 5.16 Timing was designed for system load between 10 pF and 25 pF. SMSC LAN88710AM/LAN88710BM t clkp t t clkh clkl t t ...
Page 74
... Figure 5.5 MII Receive Timing Table 5.10 MII Receive Timing Values MIN Note 5. 0.4 clkp t * 0.4 clkp 10.0 10.0 74 DATASHEET Datasheet t hold t su MAX UNITS NOTES 0.6 ns clkp t * 0.6 ns clkp ns Note 5.18 ns Note 5.18 SMSC LAN88710AM/LAN88710BM ...
Page 75
... CLKIN t RXD[1:0], CRS_DV setup time to rising edge of su CLKIN t RXD[1:0], CRS_DV input hold time after rising ihold edge of CLKIN Note 5.19 Timing was designed for system load between 10 pF and 25 pF. SMSC LAN88710AM/LAN88710BM t clkp t t clkh clkl t t val val ...
Page 76
... Figure 5.7 SMI Timing Table 5.13 SMI Timing Values DESCRIPTION 76 DATASHEET Datasheet UNITS NOTES MHz ±50 ppm 60 % 150 ps p-p – not RMS Section 3.5, "Serial Management ihold MIN MAX UNITS 400 ns 160 (80%) ns 160 (80%) ns 300 SMSC LAN88710AM/LAN88710BM ...
Page 77
... The XTAL1/CLKIN pin, XTAL2 pin and PCB capacitance values are required to accurately calculate the value of the two external load capacitors. The total load capacitance must be equivalent to what the crystal expects to see in the circuit so that the crystal oscillator will operate at 25.000 MHz. SMSC LAN88710AM/LAN88710BM Table 5.14 Crystal Specifications SYMBOL MIN ...
Page 78
... Mold Cap Thickness 5.00 5.10 X/Y Body Size 4.75 4.85 X/Y Mold Cap Size 2.40 2.50 X/Y Exposed Pad Size 0.40 0.50 Terminal Length 0.25 0.30 Terminal Width - - Terminal to Exposed Pad Clearance Terminal Pitch 78 DATASHEET Datasheet REMARKS SMSC LAN88710AM/LAN88710BM ...
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... Table 5.10, “MII Receive Timing Values,” on page 74 Chapter 6, Package Outline Rev. 1.0 Initial Release (02-08-10) SMSC LAN88710AM/LAN88710BM Table 7.1 Customer Revision History Updated cable length maximum in last sentence of the first paragraph to 100 m. Added far loopback description. Corrected Model Number default value to “ ...
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... Further Information For more information on SMSC automotive products, including integrated circuits, software, and ® MOST development tools and modules, visit our web site: http://www.smsc-ais.com. Direct contact information is available at: http://www.smsc-ais.com/offices. SMSC Europe GmbH Bannwaldallee 48 D-76185 Karlsruhe Germany SMSC 80 Arkay Drive ...