
1-64
Under
development
Specifications in this manual are tentative and subject to change
Rev. H
Direct Memory Access Controller
MITSUBISHI MICROCOMPUTERS
M30222 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Fig. 1.42. DMAC register (3)
b7
b0
b7
b0
(b8)
(b15)
Function
RW
Transfer counter
Set a value one less than the transfer count
Symbol
Address
When reset
TCR0
002916, 002816
Indeterminate
TCR1
003916, 003816
Indeterminate
DMAi transfer counter (i = 0, 1)
Transfer count
specification
000016 to FFFF16
b7
(b23)
b3
b0
b7
b0
b7
b0
(b8)
(b16)(b15)
(b19)
Function
RW
Source pointer
Stores the source address
Symbol
Address
When reset
SAR0
002216 to 002016
Indeterminate
SAR1
003216 to 003016
Indeterminate
DMAi source pointer (i = 0, 1)
Transfer count
specification
0000016 to FFFFF16
Nothing is assigned.
Symbol
Address
When reset
DAR0
002616 to 002416
Indeterminate
DAR1
003616 to 003416
Indeterminate
b3
b0
b7
b0
b7
b0
(b8)
(b15)
(b16)
(b19)
Function
RW
Destination pointer
Stores the destination address
DMAi destination pointer (i = 0, 1)
Transfer count
specification
0000016 to FFFFF16
b7
(b23)
Nothing is assigned.
Write "0" when writing to these bits. If read, the value is "0".