Data Sheet

Programming Interface — Ethernet Controller I210
577
8.27.3.33 1000BASE-T Pair Swap and Polarity - Page 5, Register 21
8.27.3.34 Copper Port Packet Generation - Page 6, Register 16
Bits Field Mode HW Rst SW Rst Description
15:7 Reserved RO 0x0 0x0 Reserved.
6
Register 20_5 and
21_5 Valid
RO 0x0 0x0
The contents of 21_5.5:0 and 20_5.15:0 are valid only if Register
21_5.6 = 1b
1b = Valid.
0b = Invalid.
5 C, D Crossover RO 0x0 0x0
1b = Channel C received on MDI[2]± channel D received on
MDI[3]±.
0b = Channel D received on MDI[2]± channel C received on
MDI[3]±.
4 A, B Crossover RO 0x0 0x0
1b = Channel A received on MDI[0]± channel B received on
MDI[1]±.
0b = Channel B received on MDI[0]± channel A received on
MDI[1]±.
3
Pair 7,8 (MDI[3]±)
Polarity
RO 0x0 0x0
1b = Negative.
0b = Positive.
2
Pair 4,5 (MDI[2]±)
Polarity
0x0 0x0
1b = Negative.
0b = Positive.
1
Pair 3,6 (MDI[1]±)
Polarity
RO 0x0 0x0
1b = Negative.
0b = Positive.
0
Pair 1,2 (MDI[0]±)
Polarity
RO 0x0 0x0
1b = Negative.
0b = Positive.
Bits Field Mode HW Rst SW Rst Description
15:8 Packet Burst R/W 0x0 Retain
0x00 = Continuous.
0x01 to 0xFF = burst 1 to 255 packets.
7:6 Reserved R/W 0x0 Retain Reserved.
4
Enable CRC
checker
R/W 0x0 Retain 1b = Enable.
3
Enable packet
generator
R/W 0x0 Retain 1b = Enable.
2
Payload of packet
to transmit
R/W 0x0 Retain
0b = Pseudo random.
1b = 5A,A5,5A,A5,....
1
Length of packet
to transmit
R/W 0x0 Retain
1b = 1518 bytes.
0b = 64 bytes.
0
Transmit an
Errored packet
R/W 0x0 Retain
1b = Tx packets with CRC errors and symbol error.
0b = No error.