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參數(shù)資料
| 型號(hào)： | M30622M4-105FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單片16位CMOS微機(jī) |
| 文件頁數(shù)： | 163/276頁 |
| 文件大?。?/td> | 3567K |
| 代理商： | M30622M4-105FP |
Mitsubishi microcomputers
M16C / 62 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
D-A Converter
163
Figure 1.21.2. D-A control register
D-A control register
Symbol
DACON
Address
03DC
16
When reset
00
16
b7
b6
b5
b4
b3
b2
b1
b0
D-A0 output enable bit
DA0E
Bit symbol
Bit name
Function
R W
0 : Output disabled
1 : Output enabled
D-A1 output enable bit
0 : Output disabled
1 : Output enabled
DA1E
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”
D-A register
Symbol
DAi (i = 0,1)
Address
03D8
16
,
03DA
16
When reset
Indeterminate
b7
b0
Function
Output value of D-A conversion
AA
AA
AA
AA
V
REF
AV
SS
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
2R
DA0
MSB
LSB
D-A0 output enable bit
“0”
“1”
D-A0 register0
Note 1: The above diagram shows an instance in which the D-A register is assigned 2A
16
.
Note 2: The same circuit as this is also used for D-A1.
Note 3: To reduce the current consumption when the D-A converter is not used, set the D-A output enable bit to 0 and set the D-A register to 00
16
so that no current flows in the resistors Rs and 2Rs.
“0”
“1”
Figure 1.21.3. D-A converter equivalent circuit
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