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M16C/62P Group (M16C/62P, M16C/62PT)
DMA0 Request Cause Select Register
b7
b6
b5
b4
b3
NOTES:
1. The factors of DMA0 requests can be selected by a combination of DMS bit and DSEL3 to DSEL0 bits in the
manner described below.
DSEL3 to DSEL0 DMS=0(Basic Factor of Request)
0 0 0 0 b
0 0 0 1 b
0 0 1 0 b
0 0 1 1 b
0 1 0 0 b
0 1 0 1 b
0 1 1 0 b
0 1 1 1 b
1 0 0 0 b
1 0 0 1 b
1 0 1 0 b
1 0 1 1 b
1 1 0 0 b
1 1 0 1 b
1 1 1 0 b
1 1 1 1 b
Figure 14.2 DM0SL Register
R
e
. v
2
3 .
0
S
e
p
0
, 1
2
0
0
4
R
E
J
0
9
B
0
1
8
5
0 -
2
3
0
Z
Symbol
b2
b1
b0
DM0SL
Bit Symbol
DSEL0
DMA Request Factor
Select Bit
DSEL1
DSEL2
DSEL3
Nothing is assigned. When write, set to "0".
When read, their content are "0".
(b5-b4)
DMA Request Factor
DMS
Expansion Select Bit
Software DMA
Request Bit
DSR
Falling Edge of INT0 Pin
Software Trigger
Timer A0
Timer A1
Timer A2
Timer A3
Timer A4
Timer B0
Timer B1
Timer B2
UART0 Transmit
UART0 Receive
UART2 Transmit
UART2 Receive
A/D Conversion
UART1 Transmit
page 112
f o
3
6
4
Address
After Reset
03B8h
Bit Name
(NOTE 1)
0: Basic factor of request
1: Extended factor of request
A DMA request is generated by
setting this bit to "1" when the DMS
bit is "0" (basic factor) and the DSEL3
to DSEL0 bits are "0001b"
(software trigger).
The value of this bit when read is "0".
DMS=1(Extended Factor of Request)
–
–
–
–
–
–
Two Edges of INT0 Pin
Timer B3
Timer B4
Timer B5
–
–
–
–
–
–
00h
Function
RW
RW
RW
RW
RW
RW
RW
14. DMAC
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