参数资料
型号: M37221M8H-XXXSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件页数: 32/112页
文件大小: 1179K
代理商: M37221M8H-XXXSP
M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Rev.1.00
Oct 01, 2002
page 26 of 110
REJ03B0134-0100Z
Timer 1 (8)
1/4096
1/2
1/8
Timer 1 latch (8)
8
T12M0
T12M2
T12M4
T12M1
T12M3
Timer 2 (8)
Timer 2 latch (8)
8
Timer 3 (8)
Timer 3 latch (8)
8
Timer 4 (8)
Timer 4 latch (8)
8
Data bus
Timer 1
interrupt request
Timer 2
interrupt request
T34M0
T34M2
T34M5
T34M4
T34M3
T34M1
XIN
TIM2
TIM3
Selection gate :
Connected to black
colored side at reset
T12M : Timer 12 mode register
T34M : Timer 34 mode register
FF16
0716
HSYNC
Reset
STP
instruction
Timer 3
interrupt request
Timer 4
interrupt request
Notes 1: “H” pulse width of external clock inputs TIM2 and TIM3 needs 4 machine cycles or more.
2: When the external clock source is selected, timers 2 and 3 are counted at a rising edge of input signal.
3: In the stop mode or the wait mode, external clock inputs TIM2 and TIM3 cannot be used.
Fig. 8.4.3 Timer Block Diagram
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