PMC-Sierra PM5349 manual Boundary Scan Cells, Input Pad, Mux

PMC-Sierra, Inc.

S/UNI-QUAD

DATASHEET

PM5349 S/UNI-QUAD

PMC-971239 ISSUE 6 SATURN USER NETWORK INTERFACE (155-QUAD)

NOTES:

1.OENB is the active low output enable for D[7:0].

2.RDATENB is the active low output enable for RSOC, RDAT[15:0], and RXPRTY[1:0].

3.When set high, INTB will be set to high impedance.

4.HIZ is the active low output enable for all OUT_CELL types except D[7:0], RXPRTY[1:0], RDAT[15:0], and INTB

5.A[7] is the first bit of the boundary scan chain.

12.3.1Boundary Scan Cells

In the following diagrams, CLOCK-DR is equal to TCK when the current controller state is SHIFT-DR or CAPTURE-DR, and unchanging otherwise. The multiplexer in the center of the diagram selects one of four inputs, depending on the status of select lines G1 and G2. The ID Code bit is as listed in the Boundary Scan Register table located above.

Figure 6: Input Observation Cell (IN_CELL)

IDCODE

Input

Pad

SHIFT-DR

I.D. Code bit

CLOCK-DR

G1

G2

1 2

1 2 MUX

1 2

1 2

Scan Chain In

Scan Chain Out

INPUT

to internal

logic

D

C

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use 198