M16C30_02 Datasheet, PDF (69/178 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

DMAC
Mitsubishi microcomputers
M16C / 30 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
DMA0 request cause select register
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
DM0SL
Address
03B816
When reset
0016
Bit symbol
DSEL0
DSEL1
DSEL2
DSEL3
DSEL4
DSEL5
DMS
Bit name
DMA request cause
select bit
Function
b6 b5 b4 b3 b2 b1 b0
(DMS)
0 0 0 0 0 0 0 : Falling edge of INT0 pin
0 0 0 0 0 0 1 : Software trigger
0 0 0 0 0 1 0 : Timer A0
0 0 0 0 0 1 1 : Timer A1
0 0 0 0 1 0 0 : Timer A2
0 0 0 0 1 0 1 : Must not be set
0 0 0 0 1 1 0 : Must not be set
0 0 0 0 1 1 1 : Must not be set
0 0 0 1 0 0 0 : Timer B1
0 0 0 1 0 0 1 : Timer B2
0 0 0 1 0 1 0 : UART0 transmit
0 0 0 1 0 1 1 : UART0 receive
0 0 0 1 1 0 0 : UART2 transmit
0 0 0 1 1 0 1 : UART2 receive
0 0 0 1 1 1 0 : A-D conversion
0 0 0 1 1 1 1 : UART1 transmit
1 0 0 0 1 1 0 : Two edges of INT0 pin
Must not be set except the above.
DSR
Software DMA
request bit
If software trigger is selected, a
DMA request is generated by
setting this bit to “1” (When read,
the value of this bit is always “0”)
RW
Figure 1.13.2. DMAC register (1)
68