参数资料
型号: M38039GCHSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PDIP64
封装: 17 X 56.40 MM, 1.78 MM PITCH, PLASTIC, SDIP-64
文件页数: 37/105页
文件大小: 1416K
代理商: M38039GCHSP
REJ03B0166-0113 Rev.1.13
Aug 21, 2009
Page 35 of 100
3803 Group (Spec.H QzROM version)
Fig 25. Block diagram of timer X, timer Y, timer 1, and timer 2
Q
“1”
“0”
P54/CNTR0
Q
P55/CNTR1
“0”
“1”
R
“1”
“0”
“1”
T
Prescaler X latch (8)
Prescaler X (8)
Timer X latch (8)
Timer X (8)
To timer X interrupt
request bit
Toggle flip-flop
Timer X count stop bit
Pulse width
measurement
mode
Event
counter
mode
To CNTR0 interrupt
request bit
Pulse output mode
Port P54
latch
Port P54
direction register
CNTR0 active
edge switch bit
Timer X latch write pulse
Pulse output mode
Timer mode
Pulse output mode
Prescaler Y latch (8)
Prescaler Y (8)
Timer Y latch (8)
Timer Y (8)
To timer Y interrupt
request bit
Toggle flip-flop
Timer Y count stop bit
To CNTR1 interrupt
request bit
Pulse output mode
Port P55
latch
Port P55
direction register
CNTR1 active
edge switch bit
Timer Y latch write pulse
Pulse output mode
Timer mode
Pulse output mode
Prescaler 12 latch (8)
Prescaler 12 (8)
Timer 1 latch (8)
Timer 1 (8)
Timer 2 latch (8)
Timer 2 (8)
To timer 2 interrupt
request bit
To timer 1 interrupt
request bit
CNTR0 active
edge switch bit
CNTR1 active
edge switch bit
Pulse width
measurement
mode
Event
counter
mode
Clock for timer 12
Data bus
C
lo
c
k
fo
rti
m
e
r
1
2
XIN
(1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256, 1/512, 1/1024)
Divider
C
lo
c
k
fo
rti
m
e
rY
Count source
selection bit
Main clock
division ratio
selection bits
“00”
“11”
“10”
XCIN
C
lo
c
k
fo
rti
m
e
r
X
f(XCIN)
Count source selection bit
f(XCIN)
Clock for timer Y
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