HD6412350 Hitachi, HD6412350 Datasheet - Page 221

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

Bit 7—Data Transfer Size (DTSZ): Selects the size of data to be transferred at one time.
Bit 7
DTSZ
0
1
Bit 6—Data Transfer Increment/Decrement (DTID): Selects incrementing or decrementing of
MAR every data transfer in sequential mode or repeat mode.
In idle mode, MAR is neither incremented nor decremented.
Bit 6
DTID
0
1
Bit 5—Repeat Enable (RPE): Used in combination with the DTIE bit in DMABCR to select the
mode (sequential, idle, or repeat) in which transfer is to be performed.
Bit 5
RPE
0
1
For details of operation in sequential, idle, and repeat mode, see section 7.5.2, Sequential Mode,
section 7.5.3, Idle Mode, and section 7.5.4, Repeat Mode.
Description
Byte-size transfer
Word-size transfer
Description
MAR is incremented after a data transfer
MAR is decremented after a data transfer
DMABCR
DTIE
0
1
0
1
When DTSZ = 0, MAR is incremented by 1 after a transfer
When DTSZ = 1, MAR is incremented by 2 after a transfer
When DTSZ = 0, MAR is decremented by 1 after a transfer
When DTSZ = 1, MAR is decremented by 2 after a transfer
Description
Transfer in sequential mode (no transfer end interrupt)
Transfer in sequential mode (with transfer end interrupt)
Transfer in repeat mode (no transfer end interrupt)
Transfer in idle mode (with transfer end interrupt)
(Initial value)
(Initial value)
(Initial value)
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