Rainbow-electronics W90P710CDG Manual de usuario descargar pdf (Pagina 81)

100

101

W90P710CD/W90P710CDG

Publication Release Date: September 19, 2006

- 81 - Revision B2

Continued.

BITS DESCRIPTION

[7:5] tACS

Address set-up before nECS for external I/O bank 0~3

tACS [7:5] MCLK

0 0 0 0

0 0 1 1

0 1 0 2

0 1 1 3

1 0 0 4

1 0 1 5

1 1 0 6

1 1 1 7

[4:2] tCOS

Chip selection set-up time of external I/O bank 0~3

When ROM/Flash memory bank is configured, the access to its bank

stretches chip selection time before the nOE or new signal is activated.

tCOS [4:2] MCLK

0 0 0 0

0 0 1 1

0 1 0 2

0 1 1 3

1 0 0 4

1 0 1 5

1 1 0 6

1 1 1 7

[1:0] DBWD

Programmable data bus width for external I/O bank 0~3

DBWD [1:0] Width of Data Bus

0 0 Disable bus

0 1 8-bit

1 0 16-bit

1 1 32-bit

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 551 552

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Rainbow-electronics W90P710CDG Manual de usuario Pagina 81

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