参数资料
型号: M38002SFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 8 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64
文件页数: 105/174页
文件大小: 1752K
代理商: M38002SFP
HARDWARE
1-21
3800 GROUP USER’S MANUAL
Fig. 16 Block diagram of timer X, timer Y, timer 1, and timer 2
FUNCTIONAL DESCRIPTION
Timer X latch (8)
Timer X (8)
Prescaler X latch (8)
Prescaler X (8)
Oscillator
Divider
f(XIN)
1/16
CNTR0 active
edge switch bit
P54/CNTR0 pin
Port P54
direction register
“0”
“1”
Event
counter
mode
Timer X count stop bit
CNTR0 active
edge switch
bit
Port P54
latch
Pulse output
mode
Pulse width
measurement
mode
Timer mode
Pulse output
mode
“1”
“0”
Timer X latch write pulse
Pulse output mode
To timer X interrupt
request bit
To CNTR0 interrupt
request bit
Data bus
Timer Y latch (8)
Timer Y (8)
Prescaler Y latch (8)
Prescaler Y (8)
CNTR1 active
edge switch bit
P55/CNTR1 pin
Port P55
direction register
“0”
“1”
Event
counter
mode
Timer Y count stop bit
CNTR1 active
edge switch
bit
Port P55
latch
Pulse output
mode
Pulse width
measurement
mode
Timer mode
Pulse output
mode
“1”
“0”
Timer Y latch write pulse
Pulse output mode
To timer Y interrupt
request bit
To CNTR1 interrupt
request bit
Data bus
Q
R
Toggle flip- flop
T
Q
R
Toggle flip- flop
T
Timer 2 latch (8)
Timer 1 latch (8)
Prescaler
12 latch (8)
Prescaler 12 (8)
Timer 2 (8)
Timer 1 (8)
Data bus
To timer 2 interrupt
request bit
To timer 1 interrupt
request bit
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