M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 74

• Manufacturer Part Number: M30622M4
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

DMAC
74
Figure 1.16.2. DMAC register (1)
DMA0 request cause select register
b7
b6
b5
b4
b3
b2
b1
b0
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.
Bit symbol
DSEL0
DSEL1
DSEL2
DSEL3
DMS
DSR
Symbol
DM0SL
DMA request cause
expansion bit
DMA request cause
Software DMA
request bit
Bit name
select bit
Address
03B8
16
0 : Normal
1 : Expanded cause
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”)
b3 b2 b1 b0
0 0 0 0 : Falling edge of INT0 pin
0 0 0 1 : Software trigger
0 0 1 0 : Timer A0
0 0 1 1 : Timer A1
0 1 0 0 : Timer A2
0 1 0 1 : Timer A3
0 1 1 0 : Timer A4 (DMS=0)
0 1 1 1 : Timer B0 (DMS=0)
1 0 0 0 : Timer B1 (DMS=0)
1 0 0 1 : Timer B2 (DMS=0)
1 0 1 0 : UART0 transmit
1 0 1 1 : UART0 receive
1 1 0 0 : UART2 transmit
1 1 0 1 : UART2 receive
1 1 1 0 : A-D conversion
1 1 1 1 : UART1 transmit
/two edges of INT0 pin (DMS=1)
Timer B3 (DMS=1)
Timer B4 (DMS=1)
Timer B5 (DMS=1)
When reset
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
00
Function
16
Mitsubishi microcomputers
M16C / 62 Group
R
W