E1rcr2, T1ribcc – Rainbow Electronics DS26519 User Manual
Page 179
DS26519 16-Port T1/E1/J1 Transceiver
179 of 310
Register Name:
T1RIBCC (T1 Mode)
Register Description:
Receive In-Band Code Control Register
Register Address:
082h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name
—
— RUP2 RUP1 RUP0 RDN2 RDN1 RDN0
Default
0 0 0 0 0 0 0 0
Note: This register has an alternate definition for E1 mode. See
Bits 5 to 3: Receive Up Code Length Definition Bits (RUP[2:0])
RUP2 RUP1 RUP0
LENGTH
SELECTED
0 0 0
1
bits
0 0 1
2
bits
0 1 0
3
bits
0 1 1
4
bits
1 0 0
5
bits
1 0 1
6
bits
1 1 0
7
bits
1
1
1
8 : 16 bits
Bits 2 to 0: Receive Down Code Length Definition Bits (RDN[2:0])
RDN2 RDN1 RDN0
LENGTH
SELECTED
0 0 0
1
bits
0 0 1
2
bits
0 1 0
3
bits
0 1 1
4
bits
1 0 0
5
bits
1 0 1
6
bits
1 1 0
7
bits
1
1
1
8 : 16 bits
Register Name:
E1RCR2 (E1 Mode)
Register Description:
Receive Control Register 2
Register Address:
082h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name
— — — — — — —
RLOSA
Default
0 0 0 0 0 0 0 0
Note: This register has an alternate definition for T1 mode. See
Bit 0: Receive Loss of Signal Alternate Criteria (RLOSA). Defines the criteria for a loss of signal condition.
0 = LOS declared upon 255 consecutive zeros (125
μs).
1 = LOS declared upon 2048 consecutive zeros (1ms).