Mitsubishi microcomputers
M16C / 61 Group
DMAC
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
DMAi source pointer (i = 0, 1)
(b19)
b3
(b16)(b15)
b0 b7
(b8)
b0 b7
(b23)
b7
b0
Symbol
SAR0
SAR1
Address
002216 to 002016
003216 to 003016
When reset
Indeterminate
Indeterminate
Transfer count
specification
Function
R W
• Source pointer
Stores the source address
0000016 to FFFFF16
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.
DMAi destination pointer (i = 0, 1)
(b19)
b3
(b16)(b15)
b0 b7
(b8)
b0 b7
(b23)
b7
b0
Symbol
DAR0
DAR1
Address
002616 to 002416
003616 to 003416
When reset
Indeterminate
Indeterminate
Transfer count
specification
Function
R W
• Destination pointer
Stores the destination address
0000016 to FFFFF16
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.
DMAi transfer counter (i = 0, 1)
(b15)
b7
(b8)
b0 b7
b0
Symbol
TCR0
TCR1
Address
002916, 002816
003916, 003816
When reset
Indeterminate
Indeterminate
Transfer count
specification
Function
R W
• Transfer counter
Set a value one less than the transfer count
000016 to FFFF16
Figure 1.15.3. DMAC register (2)
64
MITSUBISHI [ Mitsubishi Group ]
