HD6432646 Hitachi, HD6432646 Datasheet - Page 909

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

MRA—DTC Mode Register A
Bit
Initial value
Read/Write
Undefined
SM1
—
7
Source Address Mode
0
1
Undefined
—
SM0
0
1
—
6
SAR is fixed
SAR is incremented after a transfer
(by +1 when Sz = 0; by +2 when Sz = 1)
SAR is decremented after a transfer
(by -1 when Sz = 0; by -2 when Sz = 1)
Undefined
DM1
—
5
Destination Address Mode
0
1
Undefined
—
DM0
0
1
—
4
DAR is fixed
DAR is incremented after a transfer
(by +1 when Sz = 0; by +2 when Sz = 1)
DAR is decremented after a transfer
(by -1 when Sz = 0; by -2 when Sz = 1)
Undefined
MD1
H'EBC0–H'EFBF
—
3
DTC Mode
0
1
Undefined
DTC Transfer Mode Select
MD0
0 Destination side is repeat
1 Source side is repeat area
0
1
0
1
—
2
area or block area
or block area
Normal mode
Repeat mode
Block transfer mode
—
DTC Data Transfer Size
0 Byte-size transfer
1 Word-size transfer
Undefined
DTS
—
1
Undefined
Sz
—
0
DTC
875