Fujitsu MB90335 Series Hardware Manual page 554

MB90335 Series
Table A-1 I/O Map (8 / 8)
Address
00790F
H
to
00791F
H
007920
DMA Buffer address pointer lower 8 bit
H
007921
DMA Buffer address pointer middle 8 bit
H
007922
DMA Buffer address pointer upper 8 bit
H
007923
DMA control register
H
DMA I/O Register Address Pointer lower 8
007924
H
bit
DMA I/O Register Address Pointer upper 8
007925
H
bit
007926
Lower 8 bits of DMA data counter
H
007927
Higher 8 bits of DMA data counter
H
007928
H
to
007FFF
H
• Explanation of reading/writing
R/W: Readable and Writable
R: Read only
W: Write only
• Explanation of initial value
0: The initial value is "0".
1: The initial value is "1".
X: The initial value is irregular.
-: It is Undefined bit. The initial value is indefinite.
*: The initial value is "1" or "0".
Note:
You cannot use any I/O-related command to registers that are placed from 7900
CM44-10137-6E
Registers
FUJITSU MICROELECTRONICS LIMITED
Abbreviation Access
Use prohibited
DBAPL R/W
DBAPM R/W
DBAPH R/W
DMACS R/W
DIOAL R/W
DIOAH R/W
DDCTL R/W
DDCTH R/W
Use prohibited
APPENDIX A Memory Map
Release Initial value
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
μDMAC
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
to 7FFF .
H H
B
B
B
B
B
B
B
B
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