PM7312 pmc-sierra, PM7312 Datasheet - Page 125
![no-image](/images/no-image-200.jpg)
PM7312
Manufacturer Part Number
PM7312
Description
Freedm 32a1024l Assp Telecom Standard Datasheet
Manufacturer
pmc-sierra
Datasheet
1.PM7312.pdf
(283 pages)
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Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2021833, Issue 2
Register 0x200: RHDL Indirect Channel Select
This register provides the channel number used to access the receive channel provision RAM.
Writing to this register triggers an indirect channel register access. During indirect write operations,
there must be no incoming data present on the HDLC channel being configured. Prior to
commencing any indirect write operation to a particular HDLC channel, any timeslots mapped in
the RCAS channel provision RAM (Register 0x110) to that HDLC channel must be re-mapped to
the HDLC channel reserved for unused time slots.
CHAN[9:0]
CRWB
The indirect channel number bits (CHAN[9:0]) indicate the receive channel to be configured or
interrogated in the indirect access.
The channel indirect access control bit (CRWB) selects between a configure (write) or
interrogate (read) access to the receive channel provision RAM. Writing a logic zero to CRWB
triggers an indirect write operation. Data to be written is taken from the Indirect Channel Data
registers. Writing a logic one to CRWB triggers an indirect read operation. The data read can
be found in the Indirect Channel Data registers.
Bit
Bit 31
To
Bit 16
Bit 15
Bit 14
Bit 13
To
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Type
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
FREEDM 32A1024L ASSP Telecom Standard Product Data Sheet
Function
Unused
CBUSY
CRWB
Unused
CHAN[9]
CHAN[8]
CHAN[7]
CHAN[6]
CHAN[5]
CHAN[4]
CHAN[3]
CHAN[2]
CHAN[1]
CHAN[0]
Default
X
0
0
X
0
0
0
0
0
0
0
0
0
0
Released
125
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