ds21ft40 Maxim Integrated Products, Inc., ds21ft40 Datasheet - Page 31

• Manufacturer Part Number: ds21ft40
• Description: Ds21ft40 Four X Three 12 Channel E1 Framer
• Manufacturer: Maxim Integrated Products, Inc.

CCR4: COMMON CONTROL REGISTER 4 (Address=A8 Hex)
(MSB)
SYMBOLS
RLB
SYMBOLS
TCM4
TCM3
TCM2
TCM1
TCM0
RCLA
RSRE
THSE
TBCS
RLB
–
–
–
POSITION
POSITION
CCR3.3
CCR3.2
CCR3.1
CCR3.0
CCR4.7
CCR4.6
CCR4.5
CCR4.4
CCR4.3
CCR4.2
CCR4.1
CCR4.0
–
NAME AND DESCRIPTION
Receive Carrier Loss (RCL) Alternate Criteria.
NAME AND DESCRIPTION
Remote Loopback.
Not Assigned. Should be set to zero when written.
Not Assigned. Should be set to zero when written.
Transmit Channel Monitor Bit 0. LSB of the channel decode.
Receive Side Signaling Re–Insertion Enable. See Section 9 for
details.
0=do not re–insert signaling bits into the data stream presented
at the RSER pin
1=re–insert the signaling bits into data stream presented at the
RSER pin
Transmit Side Hardware Signaling Insertion Enable.
Not applicable for DS21FT40. Should be cleared to zero.
Transmit Side Backplane Clock Select.
0=if TSYSCLK is 1.544 MHz
1=if TSYSCLK is 2.048 MHz
0=RCL declared upon 255 consecutive zeros (125 us)
1=RCL declared upon 2048 consecutive zeros (1 ms)
0 = loopback disabled
1 = loopback enabled
Transmit Channel Monitor Bit 4. MSB of a channel decode
that deter-mines which transmit channel data will appear in the
TDS0M register. See Section 8 for details.
Transmit Channel Monitor Bit 3.
Transmit Channel Monitor Bit 2.
Transmit Channel Monitor Bit 1.
TCM4
31 of 87
TCM3
TCM2
TCM1
TCM0
(LSB)
DS21FT40