xrt94l33 Exar Corporation, xrt94l33 Datasheet - Page 183

• Manufacturer Part Number: xrt94l33
• Description: Multi-channel, Multi-function Device Aggregates 3 Ds3/e3/sts-1 Into Oc3/stm-1
• Manufacturer: Exar Corporation

xr
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
2.2.6.5
The four User Cell Filter – Pattern Registers permit the user to specify the Header Byte Pattern for the
Transmit User Cell Filter. There are four User Cell Filter – Pattern Registers (one for each of the four (4)
header bytes, within an ATM cell). The bit-format of these “User Cell Filter – Pattern Registers” is presented
below.
Transmit ATM Filter # 0, # 1, # 2, # 3 Pattern – Header Byte 1 (Address = 0xNF44, 0xNF54, 0xNF64,
0xNF74)
Transmit ATM Filter # 0, # 1, # 2, # 3 Pattern – Header Byte 2 (Address = 0xNF45, 0xNF55, 0xNF65,
0xNF75)
Transmit ATM Filter # 0, # 1, # 2, # 3 Pattern – Header Byte 3 (Address = 0xNF46, 0xNF56, 0xNF66,
0xNF76)
Transmit ATM Filter # 0, # 1, # 2, # 3 Pattern – Header Byte 4 (Address = 0xNF47, 0xNF57, 0xNF67,
0xNF77)
Note:
B
B
B
B
R/W
R/W
R/W
R/W
IT
IT
IT
IT
0
0
0
0
7
7
7
7
Each of the four Transmit User Cell Filters (within the Transmit ATM Cell Processor block) contains their own set
of “User Cell Filter – Pattern” registers.
T
RANSMIT
B
B
B
B
R/W
R/W
R/W
R/W
IT
IT
IT
IT
0
0
0
0
6
6
6
6
U
SER
C
ELL
B
B
B
B
R/W
R/W
R/W
R/W
IT
IT
IT
IT
0
0
0
0
F
5
User Cell Filter Pattern – Header Byte 1[7:0]
5
User Cell Filter Pattern – Header Byte 2[7:0]
5
User Cell Filter Pattern – Header Byte 3[7:0]
5
User Cell Filter Pattern – Header Byte 4[7:0]
ILTER
– P
ATTERN
B
B
B
B
R/W
R/W
R/W
R/W
IT
IT
IT
IT
0
0
0
0
4
4
4
4
R
183
EGISTERS
B
B
B
B
R/W
R/W
R/W
R/W
IT
IT
IT
IT
0
0
0
0
3
3
3
3
B
B
B
B
R/W
R/W
R/W
R/W
IT
IT
IT
IT
0
0
0
0
2
2
2
2
B
B
B
B
R/W
R/W
R/W
R/W
IT
IT
IT
IT
0
0
0
0
1
1
1
1
XRT94L33
Rev.1.2.0.
B
B
B
B
R/W
R/W
R/W
R/W
IT
IT
IT
IT
0
0
0
0
0
0
0
0