Section 7 Data Transfer Controller (DTC)
Rev. 3.00 Jan 25, 2006 page 147 of 872
REJ09B0286-0300
•
DTC enable registers (DTCER)
•
DTC vector register (DTVECR)
7.2.1
DTC Mode Register A (MRA)
MRA selects the DTC operating mode.
Bit
Bit Name
Initial Value
R/W
Description
7
6
SM1
SM0
Undefined
Undefined
—
—
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)
5
4
DM1
DM0
Undefined
Undefined
—
—
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)
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
Содержание H8S/2158
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Страница 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Страница 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
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Страница 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...