3.0 Circuit Descriptions
RS8953B/8953SPB
3.4 Loopbacks
HDSL Channel Unit
Table 3-1. PCM And HDSL Loopbacks
Loopback
Command Register
Test Direction
Loopback Description
PP_LOOP
HP_LOOP
PH_LOOP
PH_LOOP
PH_LOOP
HH_LOOP
HH_LOOP
HH_LOOP
CMD_2; addr 0xE6
CMD_2; addr 0xE6
RCMD_2; addr 0x61
RCMD_2; addr 0x81
RCMD_2; addr 0xA1
TCMD_2; addr 0x07
TCMD_2; addr 0x27
TCMD_2; addr 0x47
Receive
Transmit
Receive
Receive
Receive
Transmit
Transmit
Transmit
PCM Loopback on PCM Side
HDSL Loopback on PCM Side
PCM Loopback on HDSL Channel 1
PCM Loopback on HDSL Channel 2
PCM Loopback on HDSL Channel 3
HDSL Loopback on HDSL Channel 1
HDSL Loopback on HDSL Channel 2
HDSL Loopback on HDSL Channel 3
3-18
Conexant
N8953BDSB
CONEXANT [ CONEXANT SYSTEMS, INC ]
