
Agere Systems Inc.
227
Data Sheet
May 2001
155/622/2488 Mbits/s Data Interface
TDAT042G5 SONET/SDH
Register Descriptions
(continued)
DE Registers
(continued)
Table 121. Registers 0x1080
—
0x1087: ATM Framer Idle Cell Match Mask (R/W)
Reset default of registers = 0xFFFF.
Table 122. Registers 0x1088
—
0x108F: ATM Idle Cell Registers (R/W)
Reset default of registers 0x1088, 0x108A, 0x108C, 0x108E = 0x0000.
Reset default of registers 0x1089, 0x108B, 0x108D, 0x108F = 0x0001.
Address
(Hex)
1080
—
1087
Bit #
Name
Function
Reset
Default
0xFFFF
—
ATM_IDM_[0
—
3][31:0]
ATM Idle Cell Match Mask Channel [0
—
3].
This 32-bit register defines which of the 32 bits
will be used for comparison between the idle
cell register and the header data in the ATM
framer. A value of 1 enables the comparison
with the corresponding bit in the ATM idle cell
register.
[31:24] is the MSByte of ATM_IDM_0.
[7:0] is the LSByte of ATM_IDM_0.
[31:24] is the MSByte of ATM_IDM_1.
[7:0] is the LSByte of ATM_IDM_1.
[31:24] is the MSByte of ATM_IDM_2.
[7:0] is the LSByte of ATM_IDM_2.
[31:24] is the MSByte of ATM_IDM_3.
[7:0] is the LSByte of ATM_IDM_3.
1080
1081
1082
1083
1084
1085
1086
1087
15
—
0
15
—
0
15
—
0
15
—
0
15
—
0
15
—
0
15
—
0
15
—
0
ATM_IDM_0[31:16]
ATM_IDM_0[15:0]
ATM_IDM_1[31:16]
ATM_IDM_1[15:0]
ATM_IDM_2[31
:
16]
ATM_IDM_2[15
:
0]
ATM_IDM_3[31
:
16]
ATM_IDM_3[15
:
0]
0xFFFF
0xFFFF
0xFFFF
0xFFFF
0xFFFF
0xFFFF
0xFFFF
0xFFFF
Address
(Hex)
1088
—
108F
Bit #
Name
Function
Reset Default
—
ATM_IDC_[0
—
3][31:0]
ATM Idle Cell Register Channel [0
—
3].
This 32-bit register will store the expected
header value for idle cells. If the ATM framer
sees a header for an ATM packet which
matches this register at the bit positions
designated by the ATM idle cell match mask,
the packet will be treated as an idle cell.
[31:24] is the MSByte of ATM_IDC_0.
[7:0] is the LSByte of ATM_IDC_0.
[31:24] is the MSByte of ATM_IDC_1.
[7:0] is the LSByte of ATM_IDC_1.
[31:24] is the MSByte of ATM_IDC_2.
[7:0] is the LSByte of ATM_IDC_2.
[31:24] is the MSByte of ATM_IDC_3.
[7:0] is the LSByte of ATM_IDC_3.
See below.
1088
1089
108A
108B
108C
108D
108E
108F
15
—
0
15
—
0
15
—
0
15
—
0
15
—
0
15
—
0
15
—
0
15
—
0
ATM_IDC_0[31:16]
ATM_IDC_0[15:0]
ATM_IDC_1[31:16]
ATM_IDC_1[15:0]
ATM_IDC_2[31:16]
ATM_IDC_2[15:0]
ATM_IDC_3[31:16]
ATM_IDC_3[15:0]
0x0000
0x0001
0x0000
0x0001
0x0000
0x0001
0x0000
0x0001