PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Pin Name
Type
Pin
No.
Function
OD[0]
OD[1]
OD[2]
OD[3]
OD[4]
OD[5]
OD[6]
OD[7]
Output C1
The outgoing data bus (OD[7:0]) carries the
STM-4 or STM-1 #1 SONET/SDH frame data in
byte serial format.
D2
E3
D1
E2
F3
G4
E1
In outgoing STM-1 (STS-3) interface mode
(OHSMODEB set high), the OD[7:0] bus carries
the STM-1 #1 stream. OD[7] is the most
significant bit, corresponding to bit 1 of each
serial word, the bit transmitted first. OD[0] is the
least significant bit, corresponding to bit 8 of
each serial word, the last bit transmitted.
OD[7:0] is set to all-zeros at transport overhead
bytes, except for the A1 and A2 framing bytes
and the H1 and H2 pointer bytes. Pointer offset
is determined by the STP Outgoing Pointer MSB
and LSB registers. The OD[7:0] bus is updated
on the rising edge of SCLK.
In outgoing STM-4 (STS-12) interface mode
(OHSMODEB set low), the ID[7:0] bus carries
the STM-4 stream. OD[7] is the most significant
bit, corresponding to bit 1 of each serial word,
the bit transmitted first. OD[0] is the least
significant bit, corresponding to bit 8 of each
serial word, the last bit transmitted. OD[7:0] is
set to all-zeros at transport overhead bytes,
except for the A1 and A2 framing bytes and the
H1 and H2 pointer bytes. Pointer offset is
determined by the STP Outgoing Pointer MSB
and LSB registers. The OD[7:0] bus is updated
on the rising edge of HSCLK.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
51
PMC [ PMC-SIERRA, INC ]
