參數(shù)資料
型號: M30100
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述: 單片16位CMOS微機
文件頁數(shù): 120/164頁
文件大?。?/td> 3302K
代理商: M30100
deveopment
D-A Converter
Tentative Specifications REV.E1
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
119
V
REF
V
SS
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
2R
D-A output enable bit
"0"
DA
"1"
MSB
LSB
D-A register 0
"0"
"1"
Note 1: In the above figure, the D-A register value is "2A
16
".
Note 2: To save power when not using the D-A converter, set the D-A output enable bit to "0"
and the D-A register to "00
16
", and prevent current flowing to the R-2R resistance.
D-A control register
Symbol
DACON
Address
00DC
16
When reset
00
16
b7
b6
b5
b4
b3
b2
0
b1
b0
D-A output enable bit
DAE
Bit symbol
Bit name
Function
R W
AA
0 : Output disabled
1 : Output enabled
Must always set to “0”
Reserved bit
Nothing is assigned.
When write, set "0". When read, the value of these bits is "0".
D-A register
Symbol
DA
Address
00D8
16
When reset
Indeterminate
R
R W
AA
b7
b0
Function
Output value of D-A conversion
Nothing is assigned.
When write, set "0". When read, the value of this bit is "0".
Figure 1.17.2. D-A control register
Figure 1.17.3. D-A converter equivalent circuit
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