PM7366-PI datasheet(37/286 Pages) PMC

37 / 286 page

RELEASED

PM7366 FREEDM-8

DATA SHEET

PMC-1970930

ISSUE 4

FRAME ENGINE AND DATA LINK MANAGER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA,INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Table 3 – Miscellaneous Interface Signals (12)

Pin No.

Pin Name

Type

-PI

-BI

Function

SYSCLK

Input

H19

The system clock (SYSCLK) provides timing for the

core logic. SYSCLK is nominally a 50% duty cycle 25

MHz to 33 MHz clock.

RSTB

Input

U14

The active low reset signal (RSTB) signal provides an

asynchronous FREEDM-8 reset. RSTB is an

asynchronous input. When RSTB is set low, all

FREEDM-8 registers are forced to their default

states. In addition, TD[7:0] are forced high and all

PCI output pins are forced tri-state and will remain

high or tri-stated, respectively, until RSTB is set high.

PMCTEST

Input

V15

The PMC production test enable signal (PMCTEST)

places the FREEDM-8 is test mode. When

PMCTEST is set high, production test vectors can be

executed to verify manufacturing via the test mode

interface signals TA[10:0], TA[11]/TRS, TRDB, TWRB

and TDAT[15:0]. PMCTEST must be tied low in

normal operation.

TCK

Input

J19

The test clock signal (TCK) provides timing for test

operations that can be carried out using the IEEE

P1149.1 test access port. TMS and TDI are sampled

on the rising edge of TCK. TDO is updated on the

falling edge of TCK.

TMS

Input

J18

The test mode select signal (TMS) controls the test

operations that can be carried out using the IEEE

P1149.1 test access port. TMS is sampled on the

rising edge of TCK. TMS has an integral pull up

resistor.

TDI

Input

K19

The test data input signal (TDI) carries test data into

the FREEDM-8 via the IEEE P1149.1 test access

port. TDI is sampled on the rising edge of TCK.

TDI has an integral pull up resistor.

TDO

Tristate

Output

K18

The test data output signal (TDO) carries test data

out of the FREEDM-8 via the IEEE P1149.1 test

access port. TDO is updated on the falling edge of

TCK. TDO is a tri-state output which is inactive

except when scanning of data is in progress.

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