
PM5317 SPECTRA-9953 Telecom Standard Product Data Sheet
Release
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2000741, Issue 5
391
Register 20C1H: TSVCA Indirect Read/Write Data
Bit
Type
Function
Default
Bit 15
R/W
DATA[15]
0
Bit 14
R/W
DATA[14]
0
Bit 13
R/W
DATA[13]
0
Bit 12
R/W
DATA[12]
0
Bit 11
R/W
DATA[11]
0
Bit 10
R/W
DATA[10]
0
Bit 9
R/W
DATA[9]
0
Bit 8
R/W
DATA[8]
0
Bit 7
R/W
DATA[7]
0
Bit 6
R/W
DATA[6]
0
Bit 5
R/W
DATA[5]
0
Bit 4
R/W
DATA[4]
0
Bit 3
R/W
DATA[3]
0
Bit 2
R/W
DATA[2]
0
Bit 1
R/W
DATA[1]
0
Bit 0
R/W
DATA[0]
0
The Indirect Data Register is provided at SVCA Read/Write Address 01H.
DATA[15:0]
The indirect access data (DATA[15:0]) bits hold the data transfer to or from the internal
RAM during indirect access. When RWB is set to logic 1 (indirect read), the data from the
addressed location in the internal RAM will be transferred to DATA[15:0]. BUSY should
be polled to determine when the new data is available in DATA[15:0]. When RWB is set to
logic 0 (indirect write), the data from DATA[15:0] will be transferred to the addressed
location in the internal RAM. The indirect Data register must contain valid data before the
indirect write is initiated by writing to the Indirect Address Register.
DATA[15:0] has a different meaning depending on which address of the internal RAM is
being accessed.