Rainbow Electronics DS26519 - Manual (Page 158)

DS26519 16-Port T1/E1/J1 Transceiver
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Register Name: RDS0SEL
Register Description: Receive Channel Monitor Select Register
Register Address: 012h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name — — — RCM4 RCM3 RCM2 RCM1 RCM0
Default 0 0 0 0 0 0 0 0
Bits 4 to 0: Receive Channel Monitor Bits (RCM[4:0]). RCM0 is the LSB of a 5-bit channel select that
determines which receive DS0 channel data will appear in the RDS0M register.
Register Name: RSIGC
Register Description: Receive-Signaling Control Register
Register Address: 013h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name — — — RFSA1 — RSFF RSFE RSIE
— — — CASMS — RSFF RSFE RSIE
Default 0 0 0 0 0 0 0 0
Bit 4 (T1 Mode): Receive Force Signaling All Ones (RFSA1)
0 = Do not force robbed bit signaling to all ones.
1 = Force signaling bits to all ones on a per-channel basis according to the
T1RSAOI1 –3 registers.
Bit 4 (E1 Mode): CAS Mode Select (CASMS)
0 = The DS26519 will initiate a resync when two consecutive multiframe alignment signals have been
received with an error.
1 = The DS26519 will initiate a resync when two consecutive multiframe alignment signals have been
received with an error, or 1 multiframe has been received with all the bits in time slot 16 in state 0.
Alignment criteria is met when at least one bit in state 1 is present in the time slot 16 preceding the
multiframe alignment signal first detected (G.732 alternate criteria).
Bit 2: Receive-Signaling Force Freeze (RSFF). Freezes receive-side signaling at RSIGn (and RSERn if receive-
signaling reinsertion is enabled); will override receive freeze enable (RFE).
0 = Do not force a freeze event.
1 = Force a freeze event.
Bit 1: Receive-Signaling Freeze Enable (RSFE)
0 = No freezing of receive signaling data will occur.
1 = Allow freezing of receive signaling data at RSIGn (and RSERn if receive-signaling reinsertion is
enabled).
Bit 0: Receive-Signaling Integration Enable (RSIE)
0 = Signaling changes of state reported on any change in selected channels.
1 = Signaling must be stable for three multiframes in order for a change of state to be reported.