
238
Agere Systems Inc.
Data Sheet
May 2001
155/622/2488 Mbits/s Data Interface
TDAT042G5 SONET/SDH
Register Descriptions
(continued)
DE Registers
(continued)
Table 139. Registers 0x1100
—
0x1107: ATM/HDLC/SDL Framer
—
Condition Counter 1 (PMRST Update) (RO)
Reset default of registers = 0x0000.
Address
(Hex)
1100
—
1107
Bit #
Name
Function
Reset Default
—
PM_FC1_[0
—
3][27:0]
ATM/HDLC/SDL Counter 1
Channel [0
—
3].
Keeps a count of
conditions detected by the data framer in the
particular channel. This register can
represent only one of the following based
upon the channel
’
s payload type:
I
HDLC invalid sequences (as defined in
IETF RFC 1622 below)
I
ATM corrected cells
I
SDL corrected header
This value is updated upon assertion of
PMRST, and the real-time counter value is
reset to zero.
From IETF RFC 1622, invalid sequences are
the following:
1. Frames which are too short (less than 4
data bytes). See register PM_FC2_0
(addresses 0x1108
—
0x110F).
2. Frames which end with a control escape
octet followed immediately by a coding flag
sequence (0x7D7E).
3. Frames in which octet framing is violated
by transmitting a 0 stop bit where a 1 bit is
expected.
Reserved.
These bits must be written to
their reset default value (0x0).
[11:4] is the MSByte of PM_FC1_0.
[7:0] is the LSByte of PM_FC1_0.
Reserved.
These bits must be written to
their reset default value (0x0).
[11:4] is the MSByte PM_FC1_1.
[7:0] is the LSByte of PM_FC1_1.
Reserved.
These bits must be written to
their reset default value (0x0).
[11:4] is the MSByte of PM_FC1_2.
[7:0] is the LSByte of PM_FC1_2.
Reserved.
These bits must be written to
their reset default value (0x0).
[11:4] is the MSByte of PM_FC1_3.
[7:0] is the LSByte of PM_FC1_3.
0x0000
1100
15
—
12
—
0x0
11
—
0
15
—
0
15
—
12
PM_FC1_0[27:16]
PM_FC1_0[15:0]
—
0x000
0x0000
0x0
1101
1102
11
—
0
15
—
0
15
—
12
PM_FC1_1[27:16]
PM_FC1_1[15:0]
—
0x000
0x0000
0x0
1103
1104
11
—
0
15
—
0
15
—
12
PM_FC1_2[27:16]
PM_FC1_2[15:0]
—
0x000
0x0000
0x0
1105
1106
11
—
0
15
—
0
PM_FC1_3[27:16]
PM_FC1_3[15:0]
0x000
0x0000
1107