Datasheet

Appendix B Internal I/O Register
R01UH0166EJ0600 Rev. 6.00 Page 1317 of 1434
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
Bit
DMACR
Initial value
Read/Write
Short address mode
7
DTSZ
0
R/W
6
DTID
0
R/W
5
RPE
0
R/W
4
DTDIR
0
R/W
3
DTF3
0
R/W
2
DTF2
0
R/W
1
DTF1
0
R/W
0
DTF0
0
R/W
Data Transfer Factor
0—
Channel A Channel B
1
0
1
Activated by A/D converter conversion
end interrupt
—
—
Activated by DREQ pin
falling edge input
Activated by DREQ pin
low-level input
Activated by SCI channel 0 transmit-data-
empty interrupt
Activated by SCI channel 0 reception
complete interrupt
0
1
0
1
00
1
Activated by SCI channel 1 transmit-data-
empty interrupt
10
Activated by SCI channel 1 reception
complete interrupt
1
0
0
1 Activated by TPU channel 0 compare match/
input capture A interrupt
1
0
1
Activated by TPU channel 1 compare match/
input capture A interrupt
Activated by TPU channel 2 compare match/
input capture A interrupt
Activated by TPU channel 3 compare match/
input capture A interrupt
Activated by TPU channel 4 compare match/
input capture A interrupt
Activated by TPU channel 5 compare match/
input capture A interrupt
0
1
0
1
00
1
—10
—1
Data Transfer Direction
Description
Description
DMABCR Bit 4
SAE DTDIR
Bit 5 DMABCR
RPE DTIE
00
1
Transfer with MAR as source address and IOAR as destination address (initial value)
Transfer with IOAR as source address and MAR as destination address
10
1
Transfer with MAR as source address and DACK pin as write strobe
Transfer with DACK pin as read strobe and MAR as destination address
Repeat Enable
0 Transfer in sequential mode (no transfer end interrupt) (initial value)
Transfer in sequential mode (with transfer end interrupt)
1 Transfer in repeat mode (no transfer end interrupt)
Transfer in idle mode (with transfer end interrupt)
0
1
0
1
Data Transfer Increment/Decrement
0 MAR is incremented after a data transfer
• When DTSZ = 0, MAR is incremented
by 1 after a transfer
• When DTSZ = 1, MAR is incremented
by 2 after a transfer
1 MAR is decremented after a data transfer
• When DTSZ = 0, MAR is decremented
by 1 after a transfer
• When DTSZ = 1, MAR is decremented
by 2 after a transfer
Data Transfer Size
0 Byte-size transfer
1 Word-size transfer