
Data Sheet
August 1999
TMPR28051 STS-1/AU-3 (STM-0) Mapper
57
Lucent Technologies Inc.
Microprocessor Interface Description
(continued)
Register Architecture Description
(continued)
Detected BIP Errors (0xC0—0xFD)
Table 27. Registers 0xC0—0xFD: Detected BIP Errors
Note:
Bits in registers 0xC0—0xFF can have one of four configurations, depending upon the setting of register
0xBF. When register 0xBF is set for BIP_CNTS = 1, the bytes in registers 0xC0—0xFD are used to count the
number of BIP errors detected by the device.
* These registers are not contiguous, i.e., every other register in this group is shown (0xC6, 0xC8, 0xCA, . . . 0xFC) per the register map, page
29 and page 30.
These registers are not contiguous, i.e., every other register in this group is shown (0xC7, 0xC9, 0xCB, . . . 0xFD) per the register map, page
29 and page 30.
Table 28. Registers 0xFE, 0xFF: Received SONET/SDH Pointer Value
When register 0xBF is set for BIP_CNTS = 1, the bytes in registers 0xFE—0xFF are used to report the received
SONET/SDH pointer value.
Address
(Hex)
Bit #
Name
Function
Reset
Default
(Hex)
Value is
0.
0xC0
0xC1
0xC2
0xC3
0xC4
0xC5
0xC6—
0xFC*
7—0
7—0
7—0
7—0
7—0
7—0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
B1BIPCNT-[15:8]
B1BIPCNT-[7:0]
B2BIPCNT-[15:8]
B2BIPCNT-[7:0]
B3BIPCNT-[15:8]
B3BIPCNT-[7:0]
VT[1:28]PTR+3
VT[1:28]PTR+2
VT[1:28]PTR+1
VT[1:28]PTR+0
BIP2CNT11_[1:28]
BIP2CNT10_[1:28]
BIP2CNT9_[1:28]
BIP2CNT8_[1:28]
BIP2CNT7_[1:28]
BIP2CNT6_[1:28]
BIP2CNT5_[1:28]
BIP2CNT4_[1:28]
BIP2CNT3_[1:28]
BIP2CNT2_[1:28]
BIP2CNT1_[1:28]
BIP2CNT0_[1:28]
Registers 0xC0—0xC5. The first six registers in the
block, 0xC0—0xC5, are the BIP errors detected by B1,
B2, and B3.
Registers 0xC6—0xFD. The remaining registers in the
block indicate the errors seen by the BIP-2 error detec-
tors in the individual VT1.5 slots.
Since the BIP-2 errors only require 12 bits, the VT pointer
increment counts are also presented in these registers.
The values in all of these counters are latched by the
LATCH_CNT bit in register 0x00. (See the STS-1/AU-3
Terminate section, page 16 and page 17.)
Value is
0.
0xC7—
0xFD
Address
(Hex)
Bit #
Name
Function
Reset
Default
(Hex)
0x00
0xFE
7—0
SPTR+[7:0]
Register 0xFE. The SPTR+[7:0] bits report the SONET
pointer increment value.
Register 0xFF. The SPTR–[7:0] bits report the SONET
pointer decrement value.
0xFF
7—0
SPTR–[7:0]
0x00