tdat04622 ETC-unknow, tdat04622 Datasheet - Page 263

• Manufacturer Part Number: tdat04622
• Description: Tdat Sonet/sdh 155/622/2488 Mbits/s Data Interfaces
• Manufacturer: ETC-unknow

Data Sheet
May 2001
Agere Systems Inc.
Register Descriptions
DE Registers
Table 136. Transmit Type and Mode Control Summary Table (Registers 0x10E0—0x10E3)
Note: In the table below, X indicates the bit may either be 0 or 1.
Table 137. Registers 0x10F0—10FB: PPP Header Value Detach (R/W)
Reset default of registers = 0x0000.
SDL without CRC
10F0—10FB
HDLC with CRC
SDL with CRC
Type, Bits
Address
(reset mode)
without CRC
Transparent
Not defined
Payload
(Hex)
payload
[10:8]
HDLC
PPP
ATM
000
001
010
011
100
101
110
111
(continued)
0 = compression
1 = no compression
0
0
0
X
0
0
0
15—0
Bit #
7
(continued)
PPP_Rx_HDR
[0—11][15:0]
0
0
0
0
X
0
0
0
Name
6
0 = CRC-16
1 = CRC-32
0 = CRC-16
1 = CRC-32
0
00 = X
01 = no scrambling
10 = X
11 = no scrambling
X
0 = CRC-16
1 = CRC-32
0
0
5
43
31
Payload Control, Bits [7:0]
Register [0—11] PPP Header. This register
defines the 2 bytes that can be used by all
four channels to validate a PPP packet. Byte
[15:8] is the MSByte and byte [7:0] is the
LSByte. The register defining the valid PPP
header is determined by the settings of
registers 0x0FC—0x0FF. Any channel can
compare the received PPP header to this
value. If there is a mismatch, then the PPP
mismatched header counter (addresses
0x1118—0x111F) will increment.
scrambling
scrambling
0
0
0
X
0
0
0
4
0 = CRC reversed
1 = CRC normal
0 = CRC reversed
1 = CRC normal
0
0
X
0
0
0
Function
155/622/2488 Mbits/s Data Interface
3
0 = no dry
mode
1 = dry mode
0 = no dry
mode
1 = dry mode
0 = no dry
mode
1 = dry mode
0
X
0
0
0
TDAT042G5 SONET/SDH
2
00 = no scrambling
01 = postscrambling
10 = pre-scrambling
11 = undefined
00 = no scrambling
01 = postscrambling
10 = prescrambling
11 = undefined
00 = no scrambling
01 = postscrambling
10 = prescrambling
11 = undefined
0
X
0
0
0
Reset Default
1
0x0000
0
X
0
0
0
0
235