參數(shù)資料
型號: UPD780824
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù): 18/52頁
文件大?。?/td> 345K
代理商: UPD780824
18
μ
PD780232
Data Sheet U13415EJ2V0DS
5.4 A/D Converter
An 8-bit resolution 4-channel A/D converter is incorporated.
A/D conversion can be started by software only.
Figure 5-6. A/D Converter Block Diagram
Internal bus
S
Serial clock counter
Serial clock controller
Interrupt request
signal generator
SI1/P26
SO1/P25
SCK1/P27
f
X
/2
2
to f
X
/2
4
INTCSI1
BUSY/P24
Automatic data transmit/receive
address pointer (ADTP)
Buffer RAM
Serial shift register 1 (SIO1)
Match
Automatic data transmit/receive
transfer interval specification register
(ADTI)
5-bit counter
Handshake
controller
5.5 Serial Interface
Two clocked serial interface channels are incorporated.
Serial interface SIO1 operates in the 3-wire serial mode (with automatic transmit/receive function), in which MSB
first/LSB first switching is possible.
Serial interface SIO3 operates in the 2-wire serial mode (transmit only) in which the first bit is fixed to MSB.
Figure 5-7. Serial Interface SIO1 Block Diagram
ANI0
ANI1
ANI2
ANI3
INTAD
S
Sample &
hold circuit
Internal bus
A/D converter
(8 bits)
A/D conversion
result register
(ADCR0)
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