PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
writing 'b00, 'b01, 'b10 or ‘b11 to the STPSEL[1:0] bits, respectively. The
STPSEL[1:0] bits are cleared by setting CSB to logic 1.
12.1 I/O Test Mode
In I/O test mode (IOTST in Master Test Register set high), the TUPP+622 allows
the logic levels on the device inputs to be read through the microprocessor
interface, and allows the device outputs to be forced to either logic level through
the microprocessor interface.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
332