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7220 датащи(PDF) 61 Page - Renesas Technology Corp

номер детали 7220
подробное описание детали  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  303 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7220 датащи(HTML) 61 Page - Renesas Technology Corp

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2-34
7220 Group User’s Manual
FUNCTIONAL DESCRIPTION
2.6 Timers
2.6 Timers
M37221M6-XXXSP/FP has four 8-bit timers with reload latch. Figure 2.6.1 shows the timer block diagram.
Fig. 2.6.1 Timer 1, timer 2, timer 3, and timer 4 block diagram
Timer 1 (8)
1/4096
1/2
1/8
Timer 1 latch (8)
8
8
8
T12M0
T12M2
T12M4
T12M1
T12M3
Timer 2 (8)
Timer 2 latch (8)
8
8
8
Timer 3 (8)
Timer 3 latch (8)
8
8
8
Timer 4 (8)
Timer 4 latch (8)
8
8
8
Data bus
Timer 1
interrupt request
Timer 2
interrupt request
T34M0
T34M2
T34M5
T34M4
T34M3
T34M1
XIN
P24/TIM2
P23/TIM3
Selection gate :
Connected to black
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: HIGH 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.
(Note 3)
(Note 3)



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