Chapter 3 Test Program for Field

with the original data patterns. Addresses are displayed in 64KB increments during the test.

Test Process:

1. Byte Enable Test

One bit write/ 8 bit read” is executed and the new data is compared with the original data.

Test data = CCAA5533H, 80000000H

2.Byte Enable Test

“One bit write/16 bit read” is executed and the new data is compared with the original data.

Test data = CCAA5533H, 80000000H

3.Data bus test

“One bit write/16 bit read” is executed and the new data is compared with the original data.

Test data = 1H, 2H, 4H, 8H, 10H, through 80000000H.

4.Fixed data test

“16 bit write/ 16 bit read” is executed and the new data is compared to the original data.

Test data = FFFFFFFFH, 00000000H, 80018001H

5.Address pattern test

“16 bit write and 16 bit read” of address pattern data is executed and the new data is compared with the original data.

Test data = 0000H, 0004H, 0008H, 000CH,...8000H, 8004H, through

FFECH

Subtest 04 RAM Refresh

This subtest writes a data pattern (CCAA5533H ) in 4KB from 0 to the maximum installed memory, then waits for a memory refresh cycle (16 ms or more), reads the new data, and compares the result with the original data pattern.

Satellite T130, Satellite Pro T130, and PORTEGE T130 Maintenance Manual (960-Q08)

Page 92
Image 92
Toshiba PROT130 manual Test Program for Field