MB90335 datasheet(21/84 Pages) FUJI

21 / 84 page

MB90335 Series

(Continued)

• Explanation on read/write

• Explanation of initial values

Note : No IO instruction can be used for registers located between 007900H to 007FFFH.

Address

abbreviation

Read/

Write

Resource name

Initial Value

007920H

DBAPL

DMA Buffer Address Pointer Lower 8-bit

R/W

µDMAC

XXXXXXXXB

007921H

DBAPM

DMA Buffer Address Pointer Middle 8-bit

R/W

XXXXXXXXB

007922H

DBAPH

DMA Buffer Address Pointer Higher 8-bit

R/W

XXXXXXXXB

007923H

DMACS

DMA Control Register

R/W

XXXXXXXXB

007924H

DIOAL

DMA I/O Register Address Pointer Lower

8-bit

R/W

XXXXXXXXB

007925H

DIOAH

DMA I/O Register Address Pointer

Higher 8-bit

R/W

XXXXXXXXB

007926H

DDCTL

DMA Data Counter Lower 8-bit

R/W

XXXXXXXXB

007927H

DDCTH

DMA Data Counter Higher 8-bit

R/W

XXXXXXXXB

007928H

007FFFH

Prohibited

R/W Read and write enabled

Read only

Write only

: Initial Value is “0”.

: Initial Value is “1”.

: Initial Value is undefined.

: Initial Value is undefined (None).

Preliminary

2004.01.09

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