HD6412350 Hitachi, HD6412350 Datasheet - Page 243

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

DMAWER is an 8-bit readable/writable register that controls enabling or disabling of writes to the
DMACR, DMABCR, and DMATCR by the DTC.
DMAWER is initialized to H'00 by a reset, and in standby mode.
Bits 7 to 4—Reserved: Read-only bits, always read as 0.
Bit 3—Write Enable 1B (WE1B): Enables or disables writes to all bits in DMACR1B, bits 11, 7,
and 3 in DMABCR, and bit 5 in DMATCR by the DTC.
Bit 3
WE1B
0
1
Bit 2—Write Enable 1A (WE1A): Enables or disables writes to all bits in DMACR1A, and bits
10, 6, and 2 in DMABCR by the DTC.
Bit 2
WE1A
0
1
DMAWER
Initial value
R/W
Description
Writes to all bits in DMACR1B, bits 11, 7, and 3 in DMABCR, and bit 5 in DMATCR
are disabled
Writes to all bits in DMACR1B, bits 11, 7, and 3 in DMABCR, and bit 5 in DMATCR
are enabled
Description
Writes to all bits in DMACR1A, and bits 10, 6, and 2 in DMABCR are disabled
Writes to all bits in DMACR1A, and bits 10, 6, and 2 in DMABCR are enabled
:
:
:
—
—
0
—
—
0
—
—
0
—
—
0
WE1B
R/W
0
WE1A
R/W
0
WE0B
R/W
0
(Initial value)
(Initial value)
WE0A
R/W
0
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