参数资料
型号: M37481E8SP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-42
文件页数: 22/100页
文件大小: 1457K
代理商: M37481E8SP
25
MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
Fig. 18 Structure of timer X/timer Y mode register and timer XY control register
Timer Y mode register (TYM : address 00F7 16)
b7
b0
Timer X mode register (TXM : address 00F6 16)
Timer XY control register (TXYCON : address 00F8 16)
Not used (all “0” at read)
b7
b0
b7
b0
Timer X stop control bit
0 : Count operation
1 : Count stop
Timer Y stop control bit
0 : Count operation
1 : Count stop
Timer X operating mode bits
b2 b1 b0
0
0 : Timer event count mode
0
1 : Pulse output mode
0
1
0 : Pulse cycle measurement mode
0
1
1 : Pulse width measurement mode
1
0
0 : Programmable waveform generation mode
1
0
1 : Programmable one-shot output mode
1
0 : PWM mode
1
1 : Not used
Timer X write control bit
0 : Writing to both latch and timer
1 : Writing to latch only
Output level latch
0 : “L” output
1 : “H” output
Timer X trigger selection bit
0 : Timer X free run in programmable waveform generation
mode
1 : Trigger occurrence (input signal of INT 0 pin) and timer
X start in programmable waveform generation mode.
Timer X count source selection bits
b7 b6
00 : f(XIN)/2
0
1 : f(XIN)/8
1
0 : f(XIN)/16
1
1 : Input from CNTR0 pin
Timer Y operating mode bits
b2 b1 b0
0
0 : Timer event count mode
0
1 : Pulse output mode
0
1
0 : Pulse cycle measurement mode
0
1
1 : Pulse width measurement mode
1
0
0 : Programmable waveform generation mode
1
0
1 : Programmable one-shot output mode
1
0 : PWM mode
1
1 : Not used
Timer Y write control bit
0 : Writing to both latch and timer
1 : Writing to latch only
Output level latch
0 : “L” output
1 : “H” output
Timer Y trigger selection bit
0 : Timer Y free run in programmable waveform
generation mode
1 : Trigger occurrence (input signal of INT 1
pin) and timer
Y start in programmable waveform generation mode.
Timer Y count source selection bits
b7 b6
0
0 : f(XIN)/2
0
1 : f(XIN)/8
1
0 : f(XIN)/16
1
1 : Input from CNTR1 pin
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