參數(shù)資料
型號: HD4074629
廠商: Hitachi,Ltd.
英文描述: AS Microcomputer Incorporating a DTMF Generator Circuit(微計算機(jī)帶雙音多頻發(fā)生器電路)
中文描述: 由于微機(jī)安裝有雙音多頻發(fā)電機(jī)斷路器(微計算機(jī)帶雙音多頻發(fā)生器電路)
文件頁數(shù): 95/155頁
文件大小: 549K
代理商: HD4074629
HD404629R Series
95
2
AN
0
AN
1
AN
2
AN
3
AV
CC
AV
SS
+
COMP
A/D interrupt request flag
(IFAD)
A/D mode register
(AMR)
Encoder
Conversion time
control
Off in stop, watch,
and subactive
modes
A/D control
logic
A/D start flag
(ADSF)
Data bus
Signal line
Resistance ladder
A/D data register
(ADR)
I
S
Figure 81 Block Diagram of A/D Converter
A/D Mode Register (AMR: $016):
Four-bit write-only register which selects the A/D conversion period
and indicates analog input pin information. Bit 0 of the A/D mode register selects the A/D conversion
period, and bits 3 and 2 select a channel, as shown in figure 82.
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