User's Manual

Table Of Contents

6881094C31-C October 14, 2003

Troubleshooting Tables: List of Board and IC Signals 7-7

E1 VSW2 C409* 1.875 V Yes

G4 VSW2 C409* 1.875 V Yes

A4 VSW2 C409* 1.875 V Yes

* = Component located under a shield on NNTN4563, NNTN4819, & NNTN4717

** = No test point/component on NNTN4563, NNTN4819, & NNTN4717 - signal not

accessible

Table 7-6. U403 SRAM Pinouts

U403

Pin No.

Description To/From Comment

Accessible

on Vocon?

A2 EN_OE No

G5 R_W R_W W = 0 V Yes

A1 LB No

B2 UB No

B5 CS1 CS2 (TP) Active Low Yes

A6 CS2 C411* Active Low Yes

A3 ADDRESS 1 Yes

A4 ADDRESS 2 Yes

A5 ADDRESS 3 Yes

B3 ADDRESS 4 Yes

B4 ADDRESS 5 Yes

C3 ADDRESS 6 Yes

C4 ADDRESS 7 Yes

D4 ADDRESS 8 No

H2 ADDRESS 9 No

H3 ADDRESS 10 No

H4 ADDRESS 11 No

H5 ADDRESS 12 No

G3 ADDRESS 13 No

G4 ADDRESS 14 No

F3 ADDRESS 15 No

F4 ADDRESS 16 No

Table 7-5. U402 FLASH Pinouts (Continued)

U402

Pin No.

Description To/From Comment

Accessible

on Vocon?