RELEASED
PM7350 S/UNI-DUPLEX
DATA SHEET
PMC-1980581
ISSUE 5
DUAL SERIAL LINK PHY MULTIPLEXER
Table 22 LVDS Link 61 Byte Cell Configurations
Far-End
Near-End
Resultant Cell contents at far-end Bus or Microprocessor
input
Reg
output
LVDS: both ends must match e.g. Reg 0x40, 0x50 and 0x60
Reg 0x14
0x0C
S
C
I
H
5
P
S
C
I
H
5
I
P
R
E
L
DEFAULT CONFIGURATION
R
E
L
N
A
D
D
U
D
F
•
•
5 system, 2 prepend, 6 header and 48 data bytes
U
D
F
U
D
F
USRHDR:
PREPEND:
CELLCRC:
6
1
0
A
N
Y
A
N
Y
E
N
[1
..
E
N
[1
..
Control cell prepend bytes 2&3 and header bytes 8&9 are
valid at far-end microprocessor.
0]
0]
1
1
2
1
1
0
1
NEAR-END IBUS8=1, FAR-END OBUS8=1
Cells are transferred from a 54/54/55(XX/XX/XX) byte
bus to a 54/55/55(XX/XX/XX) byte bus.
Prepend and H5 bytes are valid.
•
•
•
•
NEAR-END IBUS8=1, FAR-END OBUS8=0
Cells are transferred from a 54/54/55(XX/XX/XX) byte
bus to a XX/XX/XX(56/58/58) byte bus.
Prepend MSB and H5 bytes are valid. Prepend LSB and
UDF bytes are undefined.
NEAR-END IBUS8=0, FAR-END OBUS8=1
Cells are transferred from a XX/XX/XX(56/56/58) byte
bus to a 54/55/55(XX/XX/XX) byte bus.
Prepend and H5 bytes are valid.
•
•
•
•
NEAR-END IBUS8=0, FAR-END OBUS8=0
Cells are transferred from a XX/XX/XX(56/56/58) byte
bus to a XX/XX/XX(56/56/58) byte bus.
Prepends and H5/UDF bytes are valid.
THIS CONFIGURATION IS VALID ONLY IF NEAR-END
IBUS8=0 AND THE FAR-END OBUS8=1
Cells are transferred from a 55/55/56(XX/XX/XX) byte
bus to a 55/56/56(XX/XX/XX) byte bus.
Prepend (2 bytes) and H5 bytes are valid.
THIS CONFIGURATION IS VALID ONLY IF NEAR-END
IBUS8=1
1
1
1
1
2
2
1
1
1
1
0
0
2
1
•
•
•
•
Cells are transferred from a 55/55/56(XX/XX/XX) byte
bus to a 54/55/55(56/58/58) byte bus.
Prepend (2 bytes) and H5 bytes are valid. UDF
undefined if used.
1
1
1
1
1
0
2
THIS CONFIGURATION IS VALID ONLY IF NEAR-END
OBUS8=1
•
•
Cells are transferred from a 54/54/55(56/56/58) byte bus
to a 55/56/56(XX/XX/XX) byte bus.
Prepend (2 bytes) and H5 bytes are valid.
Table 23 LVDS Link 59 Byte Cell Configurations with CRC
Far-End
Near-End
Resultant Cell contents at far-end Bus or Microprocessor
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
192
PMC [ PMC-SIERRA, INC ]
