RTL8208B-LF/RTL8208BF-LF
Datasheet
6.8. Port 1 Register24: Cable Tester Control Register0
Table 18. Port 1 Register24: Cable Tester Control Register0
Reg. bit Name
Description
Type
RW
RW
RW
Default
000
0
15:13
12
11
Port Selection
Reserved
Port selection for cable test.
Must be set to the default value.
1: Run cable test
ENRTCT
0
0: Stop cable test
10:8
7:0
Reserved
Reserved
Must be set to the default value.
Must be set to the default value.
RW
RW
111
0x80
Port Selection
000 = Select Port 0 to run cable test
001 = Select Port 1 to run cable test
010 = Select Port 2 to run cable test
011 = Select Port 3 to run cable test
100 = Select Port 4 to run cable test
101 = Select Port 5 to run cable test
110 = Select Port 6 to run cable test
111 = Select Port 7 to run cable test
ENRTCT – Set to ‘1’ to run the UTP cable test, and set to ‘0’ after completion of the cable test process.
6.9. Port1 Register29: Cable Tester Control Register1
Table 19. Port1 Register29: Cable Tester Control Register1
Reg. bit Name
Description
Must be set to the default value.
1: Cable test on TX pair
Type
RW
RW
Default
15
14
Reserved
SELTX
0
0
0: Cable test on RX pair
13
12
11:0
Reserved
Reserved
Reserved
Must be set to the default value.
Must be set to the default value.
Must be set to the default value.
RW
RW
RW
0
1
0x7d0
SELTX
0: Select RX_Pair (pair 1/2) to run cable test
1: Select TX_Pair (pair 3/6) to run cable test
Single-Chip Octal 10/100-TX/FX PHY Transceiver
24
Track ID: JATR-1076-21 Rev. 1.3
REALTEK [ Realtek Semiconductor Corp. ]
