Datasheet

Section 9 Data Transfer Controller (DTC)
Page 480 of 1408 R01UH0309EJ0500 Rev. 5.00
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Bit Bit Name Initial Value R/W Description
5
4
DM1
DM0
Undefined
Undefined
⎯
⎯
Destination Address Mode 1 and 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)
3
2
MD1
MD0
Undefined
Undefined
⎯
⎯
DTC Mode
These bits specify the DTC transfer mode.
00: Normal mode
01: Repeat mode
10: Block transfer mode
11: Setting prohibited
1 DTS Undefined ⎯ 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
0 Sz Undefined ⎯ DTC Data Transfer Size
Specifies the size of data to be transferred.
0: Byte-size transfer
1: Word-size transfer
[Legend]
x: Don't care