Datasheet

DS21348/DS21Q348
33 of 76
CCR5 (04H): COMMON CONTROL REGISTER 5
(MSB) (LSB)
BPCS1 BPCS0 MM1 MM0 RSCLKE TSCLKE RT1 RT0
SYMBOL POSITION DESCRIPTION
BPCS1 CCR5.7 Backplane Clock Select 1. See Table 4-3 for details.
BPCS0 CCR5.6 Backplane Clock Select 0. See Table 4-3 for details
MM1 CCR5.5 Monitor Mode 1. See Table 4-4.
MM0 CCR5.4 Monitor Mode 0. See Table 4-4.
RSCLKE CCR5.3
Receive Synchronization Clock Enable.
This control bit determines whether the line receiver should handle normal
T1/E1 signals or a synchronization signal.
E1 mode:
0 = receive normal E1 signal (Section 6 of G.703)
1 = receive 2.048MHz synchronization signal (Section 10 of G.703)
T1 mode:
0 = receive normal T1 signal
1 = receive 1.544MHz synchronization signal
TSCLKE CCR5.2
Transmit Synchronization Clock Enable.
This control bit determines whether the transmitter should transmit normal
T1/E1 signals or a synchronized signal.
E1 mode:
0 = transmit normal E1 signal (Section 6 of G.703)
1 = transmit 2.048MHz synchronization signal (Section 10 of G.703)
T1 mode:
0 = transmit normal T1 signal
1 = transmit 1.544MHz synchronization signal
RT1 CCR5.1 Receive Termination 1. See Table 4-5 for details.
RT0 CCR5.0 Receive Termination 0. See Table 4-5 for details.