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2.6.4 ThunderLAN EEPROM Map
ThunderLAN uses the following EEPROM map. Note that these values may
be used in several applications and systems including:
ThunderLAN hardware
A host running Texas Instruments ThunderLAN drivers
Texas Instruments diagnostic routines
Table 2–1. ThunderLAN EEPROM Map
Address Default Binary Bits Description
0x70 0x70 ccccxbdx Acommit register and bit level PHY controls
cccc–commit level 0–7
b–Local loopback select
d–ThinNet select
0x71 0x33 ttttrrrr Transmit and receive burst size control
tttt–Transmit burst size control 0–7
rrrr–Receive burst size control 0–7
0x72 0x00 ccccbbbb PHY
TLPHY_ctl register initialization options
cccc–Bits 15–12 of the MII register 0x11 TLPHY_ctl
bbbb–Bits 3–0 of the MII register 0x11 TLPHY_ctl
0x73 0x0f Interrupt pacing timer value
0x74 0xff Configuration space Latency_Timer
register value
0x75 0xea LSB of maximum frame size to test
0x76 0x05 MSB of maximum frame size to test
0x77 0x40 LSB of small frame in mixed frame size test
0x78
0x00 MSB of small frame in mixed frame size test