HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 177

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

7.2.1
MRA selects the DTC operating mode.
Legend:
X:
Bit
7
6
5
4
3
2
1
0
Bit Name
SM1
SM0
DM1
DM0
MD1
MD0
DTS
Sz
Don't care
DTC Mode Register A (MRA)
Initial Value
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
—
—
—
—
—
—
—
—
R/W
Source Address Mode 1, 0
These bits specify an SAR operation after a data
transfer.
0X: SAR is fixed
10: SAR is incremented after a transfer
(by +1 when Sz = 0, by +2 when Sz = 1)
11: SAR is decremented after a transfer
(by –1 when Sz = 0, by –2 when Sz = 1)
Destination Address Mode 1, 0
These bits specify a DAR operation after a data
transfer.
0X: DAR is fixed
10: DAR is incremented after a transfer
(by +1 when Sz = 0, by +2 when Sz = 1)
11: DAR is decremented after a transfer
(by –1 when Sz = 0, by –2 when Sz = 1)
DTC Mode
These bits specify the DTC transfer mode.
00: Normal mode
01: Repeat mode
10: Block transfer mode
11: Setting prohibited
DTC Transfer Mode Select
Specifies whether the source side or the destination
side is set to be a repeat area or block area in repeat
mode or block transfer mode.
0: Destination side is repeat area or block area
1: Source side is repeat area or block area
DTC Data Transfer Size
Specifies the size of data to be transferred.
0: Byte-size transfer
1: Word-size transfer
Description
Rev. 2.0, 08/02, page 137 of 788