PMC-Sierra, Inc.
PM5356
S/UNI-622-MAX
DATASHEET
S/UNI-622-MAX
PMC-1980589
ISSUE 5
SATURN USER NETWORK INTERFACE (622-MAX)
Register 0x35: RPOP Pointer LSB
Bit
Bit 7
Type
Function
Default
R
R
R
R
R
R
R
R
PTR[7]
PTR[6]
PTR[5]
PTR[4]
PTR[3]
PTR[2]
PTR[1]
PTR[0]
X
X
X
X
X
X
X
X
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register 0x36: RPOP Pointer MSB
Bit
Bit 7
Type
Function
Default
R/W
R/W
R/W
NDFPOR
EXTD
RDI10
Unused
S1
0
0
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
X
X
X
X
X
R
R
R
R
S0
PTR[9]
PTR[8]
PTR[9:0]:
The PTR[7:0] bits contain the current pointer value as derived from the H1 and H2 bytes. To
ensure reading a valid pointer, the NDFI, NSEI and PSEI bits of the RPOP Pointer Interrupt
Status register should be read before and after reading this register to ensure that the pointer
value did not changed during the register read.
S0, S1:
The S0 and S1 bits contain the two S bits received in the last H1 byte. These bits should be
software debounced to ensure the proper values are recieved.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
127
PMC [ PMC-SIERRA, INC ]
