diff options
Diffstat (limited to 'share/docs/hw')
| -rw-r--r-- | share/docs/hw/et131x.txt | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/share/docs/hw/et131x.txt b/share/docs/hw/et131x.txt index e1bc42b..43d7c4f 100644 --- a/share/docs/hw/et131x.txt +++ b/share/docs/hw/et131x.txt @@ -84,6 +84,91 @@ PCI BAR 0. if_stat [dword] (BAR[0] + 0x503C) station_addr1 [dword] (BAR[0] + 0x5040) station_addr2 [dword] (BAR[0] + 0x5044) + NOTES: + [REGISTER INFORMATION] + - cfg1: + First MAC configuration register. + - cfg2: + Second MAC configuration register. + - ipg: + MAC Interpacket Gap configuration register. + - hfdp: + MAC Half Duplex configuration register. + - max_fm_len: + Max packet length (bytes) sent through MAC without + truncation. + - mac_test: + MAC test registers + - mii_mgmt_cfg: + MAC MII Management Config register. + - mii_mgmt_cmd: + MAC MII Management Command register. + - mii_mgmt_ctrl: + MAC MII Management Control register. + - mii_mgmt_stat: + MAC MII Management Status register. + - mii_mgmt_indicator: + MAC MII Management Indicator register. + - if_ctrl: + MAC interface control register. + - station_addr1: + First MAC station address register. + - station_addr2: + Second MAC station address register. + [BITS] + ------------------------------------- + @ cfg1: + [bits 0]: TX enable + [bits 1]: Syncd TX enable + [bits 2]: RX enable + [bits 3]: Syncd TX enable + [bits 4]: TX flow + [bits 5]: RX flow + [bits 7:6]: Reserved + [bits 8]: Loopback + [bits 15:9]: Reserved + [bits 16]: Reset TX func + [bits 17]: Reset RX func + [bits 18]: Reset TX MC + [bits 19]: Reset RX MC + [bits 29:20]: Reserved + [bits 30]: Sim reset + [bits 31]: Soft reset + @ cfg2: + [bits 0]: Full-duplex + [bits 1]: CRC enable + [bits 2]: Pad CRC + [bits 3]: Unused (undefined) + [bits 4]: Length check + [bits 5]: Huge frame + [bits 7:6]: Reserved + [bits 9:8]: Interface mode + [bits 11:10]: Reserved + [bits 15:12]: Preamble + [bits 31:16]: Reserved + @ ipg: + [bits 7:0]: B2B IPG + [bits 15:8]: Minimum IFG enforce + [bits 22:16]: Non B2B IPG 2 + [bits 23]: Unused (undefined) + [bits 30:24]: Non B2B IPG 1 + [bits 31]: Reserved + @ hfdp: + [bits 9:0]: Collision window + [bits 11:10]: Reserved + [bits 15:12]: Re-transmit max + [bits 16]: Excess defer + [bits 17]: No backoff + [bits 18]: BP no backoff + [bits 19]: Alt BEB enable [1] + [bits 23-20]: Alt BEB trunc [1] + [bits 31-24]: Reserved + | + ++ [1]: BEB refers to Binary Exponential Backoff which is + a method to mitigate collisions by doubling the TX + backoff window (throttling TX rate) per collision. + ------------------------------------- + ------------------------------------------------------------------ ET131X REGISTER SPACE NOTES: |