參數(shù)資料
型號: M30218MFCFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 30/161頁
文件大小: 2043K
代理商: M30218MFCFP
125
Under
development
Tentative Specifications REV.A
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30218 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
D-A converter
Figure JB-2. D-A control register
D-A control register
Symbol
Address
When reset
DACON
03DC16
0016
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
Address
When reset
DAi (i = 0,1)
03D816, 03DA16
Indeterminate
W
R
b7
b0
Function
R W
Output value of D-A conversion
Figure JB-3. D-A converter equivalent circuit
VREF
AVSS
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
2R
R
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 2A16.
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 0016
so that no current flows in the resistors Rs and 2Rs.
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