PM5312STTX Datasheet, PDF (93/140 Pages) PMC-Sierra, Inc – SONET/SDH TRANSPORT OVERHEAD TERMINATING TRANSCEIVER TELECOM STANDARD PRODUCT

DATA SHEET
PMC-930829
ISSUE 5
PM5312 STTX
SONET/SDH TRANSPORT TERMINATING TRANSCEIVER
PMCTST:
The PMCTST bit is used to configure the STTX for PMC's manufacturing
tests. When PMCTST is set to logic one, the STTX microprocessor port
becomes the test access port used to run the PMC "canned" manufacturing
test vectors. The PMCTST bit is logically "ORed" with the IOTST bit, and can
only be cleared by setting CSB to logic one.
Test Mode 0
In test mode 0, the STTX allows the logic levels on most device inputs to be
observed through the microprocessor interface, and allows the device outputs to
be controlled to either logic level through the microprocessor interface.
Test mode 0 is enabled by resetting the device (using the RSTB input, or the
Master Reset and Identity register), and then setting the IOTST bit in the Master
Test register. The following addresses must then be written with the value 00H:
21H, 25H, 29H, 31H, 35H, 37H, 39H, 3DH. The Master Configuration register
(address 00H) is written with the value 23H. Applying a rising edge (logic zero to
logic one transition) on the RICLK and TCLK inputs followed by a read from the
following locations returns the value for the indicated pins:
Addr
1AH
20H
24H
30H
32H
36H
36H*
36H**
36H***
36H****
38H
3CH
Bit 7
RIN[7]
TIN1[7]
TIN2[7]
TIN3[7]
TIN4[7]
TSUC
Bit 6
TLOW
RIN[6]
TIN1[6]
TIN2[6]
TIN3[6]
TIN4[6]
TSOW
Notes:
Bit 5
TLD
RIN[5]
TIN1[5]
TIN2[5]
TIN3[5]
TIN4[5]
TSD
Bit 4
TTOH[4]
TFERF
RIN[4]
TIN1[4]
TIN2[4]
TIN3[4]
TIN4[4]
Bit 3
TTOH[3]
TAPS
RIN[3]
TIN1[3]
TIN2[3]
TIN3[3]
TIN4[3]
Bit 2
TTOH[2]
RLAIS
RIN[2]
TIFP
TIN1[2]
TIN2[2]
TIN3[2]
TIN4[2]
TLAIS
Bit 1
TTOH[1]
RSICLK
RIFP
RIN[1]
TDIS
TIN1[1]
TIN2[1]
TIN3[1]
TIN4[1]
TSICLK
Bit 0
TTOHEN
RSIN
RIN[0]
TICLK
TIN1[0]
TIN2[0]
TIN3[0]
TIN4[0]
*The address 36 must be written with the value 01H prior to reading these device
inputs.
PROPRIETARY AND CONFIDENTIALTO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 87