LAN9313I-NZW SMSC, LAN9313I-NZW Datasheet - Page 116

• Manufacturer Part Number: LAN9313I-NZW
• Description: Ethernet ICs Three Port 10/100 Ethernet Switch
• Manufacturer: SMSC
• Type: Three Port Managed Ethernet Switchr

Specifications of LAN9313I-NZW

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 Mbps, 100 Mbps
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 155 mA, 270 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.7 (06-29-10)
8.2.4.4.2
8.2.4.4.3
8.2.4.5
Note: Each of these PHY registers is written in its entirety, overwriting any previously changed bits.
Some PHY register defaults are based on configuration straps. In order to maintain consistency
between the updated configuration strap registers and the Virtual PHY registers, the
Negotiation Advertisement Register
( V P H Y _ S P E C I A L _ C O N T R O L _ S TAT U S )
(VPHY_BASIC_CTRL)
The
defaults as detailed in
(VPHY_AN_ADV)," on page
The
with the new defaults as detailed in
(VPHY_SPECIAL_CONTROL_STATUS)," on page
The
detailed in
Additionally, the Restart Auto-negotiation bit is set in this register. This re-runs the Auto-negotiation
using the new default values of the
(VPHY_AN_ADV)
Note: Each of these VPHY registers is written in its entirety, overwriting any previously changed bits.
Since the defaults of the
(MANUAL_FC_1),
Manual Flow Control Register (MANUAL_FC_MII)
Loader reloads these registers with their new default values.
Register Data
Optionally following the configuration strap values, the EEPROM data may be formatted to allow
access to the LAN9313/LAN9313i parallel, directly writable registers. Access to indirectly accessible
registers (e.g. Switch Engine registers, etc.) is achievable with an appropriate sequence of writes (at
the cost of EEPROM space).
This data is first preceded with a Burst Sequence Valid Flag (EEPROM byte 12). If this byte has a
value of A5h, the data that follows is recognized as a sequence of bursts. Otherwise, the EEPROM
Loader is finished, will go into a wait state, and clear the EPC_BUSY bit in the
Register
The data at EEPROM byte 13 and above should be formatted in a sequence of bursts. The first byte
is the total number of bursts. Following this is a series of bursts, each consisting of a starting address,
count, and the count x 4 bytes of data. This results in the following formula for formatting register data:
8-bits number_of_bursts
repeat (number_of_bursts)
Note: The starting address is a DWORD address. Appending two 0 bits will form the register address.
VIRTUAL PHY REGISTERS SYNCHRONIZATION
LED AND MANUAL FLOW CONTROL REGISTER SYNCHRONIZATION
Virtual PHY Auto-Negotiation Advertisement Register (VPHY_AN_ADV)
Virtual PHY Special Control/Status Register (VPHY_SPECIAL_CONTROL_STATUS)
Virtual PHY Basic Control Register (VPHY_BASIC_CTRL)
16-bits {starting_address[9:2] / count[7:0]}
repeat (count)
(E2P_CMD). This can optionally generate an interrupt.
8-bits data[31:24], 8-bits data[23:16], 8-bits data[15:8], 8-bits data[7:0]
Section 13.1.7.1, "Virtual PHY Basic Control Register (VPHY_BASIC_CTRL)," on page
register to determine the new Auto-negotiation results.
Port 2 Manual Flow Control Register
are written when the EEPROM Loader is run.
LED Configuration Register
Section 13.1.7.5, "Virtual PHY Auto-Negotiation Advertisement Register
216.
DATASHEET
(VPHY_AN_ADV),
Section 13.1.7.8, "Virtual PHY Special Control/Status Register
Virtual PHY Auto-Negotiation Advertisement Register
116
, a n d
222.
are based on configuration straps, the EEPROM
(LED_CFG),
V i r t u a l P H Y B a s i c C o n t r o l R e g i s t e r
Virtual PHY Special Control/Status Register
(MANUAL_FC_2), and
Three Port 10/100 Managed Ethernet Switch with MII
Port 1 Manual Flow Control Register
is written with the new defaults as
SMSC LAN9313/LAN9313i
is written with the new
EEPROM Command
Port 0(External MII)
Virtual PHY Auto-
Datasheet
is written
210.