IBM3009K2672
IBM SONET/SDH Framer
9.9: CBConf1 [386C H]
Static configuration data, providing control signals for chiplets Telecom Bus and CMUX. This is set once by
the GPP before the individual chiplets are enabled and is not changed during normal operation.
Signal Name
CKINV4
Bits
0
Access
R/W
Default
0
Description
Telecom Bus 4 output clocking:
0 on the falling edge of RXTB4CLK
1 on the rising edge of RXTB4CLK
Telecom Bus 3 output clocking:
0 on the falling edge of RXTB3CLK
1 on the rising edge of RXTB3CLK
CKINV3
CKINV2
CKINV1
1
2
3
R/W
R/W
R/W
0
0
0
Telecom Bus 2 output clocking:
0 on the falling edge of RXTB2CLK
1 on the rising edge of RXTB2CLK
Telecom Bus 1 output clocking:
0 on the falling edge of RXTB1CLK
1 on the rising edge of RXTB1CLK
RATE77
EFRM
4
5
R/W
R/W
R/W
0
0
This bit is reserved and should always be set to ’0’.
0 normal position of TXCFRM
1 TXCFRM one TXCCLK cycle earlier
Reserved
7:6
00
Reserved
9.10: CBConf2 [386D H]
Static configuration data, providing control signals for Telecom Bus _Rx drivers (tri-state control).
Signal Name
Bits
Access
Default
Description
Telecom Bus _Rx1 driver enable
CB_RX1_En
CB_RX2_En
CB_RX3_En
CB_RX4_En
Reserved
0
1
R/W
R/W
R/W
R/W
R/W
0
0
Telecom Bus _Rx2 driver enable
Telecom Bus _Rx3 driver enable
Telecom Bus _Rx4 driver enable
Reserved
2
0
3
0
7:4
0000
ssframer.01
8/27/99
Register Descriptions
Page 135 of 279
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