PM5364 pmc-sierra, PM5364 Datasheet - Page 103

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

10.5.2
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
PDI
Register
Value
01000
01001
01010
01011
01100
01101
01110
The RHPP_R monitors bits 5, 6 and 7 of the path status byte (G1) to detect to detect path
remote defect indication (RDI-P) and path enhanced remote defect indication (ERDI-P) defects.
RDI-P is declared when bit 5 of the G1 byte is set high for five or ten consecutive frames
(selectable by the PRDI10 bit in the configuration register). RDI-P is removed when bit 5 of the
G1 byte is set low for five or ten consecutive frames. ERDI-P is declared when the same 010,
100, 101, 110 or 111 pattern is detected in bits 5, 6 and 7 of the G1 byte for five or ten
consecutive frames (selectable by the PRDI10 bit in the configuration register). ERDI-P is
removed when the same 000, 001 or 011 pattern is detected in bits 5, 6 and 7 of the G1 byte for
five or ten consecutive frames.
The RHPP_R extracts and serially outputs all the path overhead (POH) bytes on the time
multiplexed RPOH port. The POH bytes are output in the same order that they are received (J1,
B3, C2, G1, F2, H4, Z3, Z4 and N1). RPOHCLK is the generated output clock used to provide
timing for the RPOH port. RPOHCLK is a nominal 20.736 MHz clock generated by gapping a
25.92 MHz clock. Sampling RPOHFP high with the rising edge of RPOHCLK identifies the
MSB of the first J1 byte.
Receive Trail trace Processor (RTTP)
The RTTP can be configured to monitor the trail trace messages inside an STS-12/STM-4 8-bit
serial stream at 77.76 MHz. The RTTP monitors up to 12 independent path trace messages.
Three trail trace algorithms are defined to detect trace identifier unstable (TIU) defect and trace
identifier mismatch (TIM) defect. Algorithm 1 is Telcordia compliant. This algorithm detects
TIM on a 16 or 64 bytes trail trace message. Algorithm 2 is ITU compliant. This algorithm
detects TIU and TIM on a 16 or 64 bytes trail trace message. Algorithm 3 is not Telcordia or
ITU compliant. It detects TIU on a single continuous trail trace byte.
PDI Range
Register
Value
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Exp PDI
E8
E1-E8
E9
E1-E9
EA
E1-EA
EB
E1-EB
EC
E1-EC
ED
E1-ED
EE
E1-EE
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
PDI
Register
Value
10111
11000
11001
11010
11011
11100
PDI Range
Register
Value
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Disable
Enable
Exp PDI
F7
E1-F7
F8
E1-F8
F9
E1-F9
FA
E1-FA
FB
E1-FB
FC
E1-FC
Released
103