Hitachi H8S/2678 Series Reference Manual page 554

DMAWER—DMA Write Enable Register
7
Bit
DMAWER —
Initial value 0
—
Read/Write
6 5
— —
0 0
— —
Write Enable 0B
0
1
Write Enable 1A
0 Writes to all bits in DMACR1A, and bits 10, 6,
and 2 in DMABCR are disabled
1 Writes to all bits in DMACR1A, and bits 10, 6,
and 2 in DMABCR are enabled
Write Enable 1B
0 Writes to all bits in DMACR1B, bits 11, 7, and 3 in
DMABCR, and bit 5 in DMATCR are disabled
1 Writes to all bits in DMACR1B, bits 11, 7, and 3 in
DMABCR, and bit 5 in DMATCR are enabled
H'FF20
4 3
— WE1B
0 0
— R/W
Write Enable 0A
0 Writes to all bits in DMACR0A, and bits 8, 4,
and 0 in DMABCR are disabled
1 Writes to all bits in DMACR0A, and bits 8, 4,
and 0 in DMABCR are enabled
Writes to all bits in DMACR0B, bits 9, 5, and 1 in
DMABCR, and bit 4 in DMATCR are disabled
Writes to all bits in DMACR0B, bits 9, 5, and 1 in
DMABCR, and bit 4 in DMATCR are enabled
2 1
WE1A WE0B
0 0
R/W R/W
DMAC
0
WE0A
0
R/W
537