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7477 датащи(PDF) 91 Page - Renesas Technology Corp

номер детали 7477
подробное описание детали  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
PDF  361 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7477 датащи(HTML) 91 Page - Renesas Technology Corp

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7470/7471/7477/7478 GROUP USER’S MANUAL
1-84
HARDWARE
1.12 Timers
(2) Timer 12 mode register (T12M: Address 00F816)
The Timer 12 mode register is a register consisting of bits that control a Timer count source and a
count operation.
Figure 1.12.12 shows a structure of Timer 12 mode register.
Fig. 1.12.12 Structure of Timer 12 mode register
b7 b6 b5 b4 b3 b2 b1 b0
Name
B
Function
0
1
2
Timer 12 mode register (T12M) [Address
Timer 12 mode register
3
4
5
6, 7
b7 b6
Timer 1 count stop
bit
At reset
R
0
0
0
0
0
0
0
W
Timer 1 count
source selection bit
Timer 1 internal clock
source selection bit
P12/T0 port output
selection bit
Timer 2 count stop
bit
Timer 2 count
source selection bit
Timer 2 internal clock
source selection bits
0 : Count start
1 : Count stop
0 : Internal clock
(Note 1)
1 : P32/CNTR0 external clock
0 : f(XIN)/16 or f(XCIN)/16
1 : f(XCIN)
(Note 2)
0 : P12 port output
1 : T0(Timer 1 overflow
divided by 2)
0 : Count start
1 : Count stop
0 : Internal clock (Note 1)
1 : Timer 1 overflow signal
0 0 :
f(XIN)/16 or f(XCIN)/16
0 1 :
f(XIN)/64 or f(XCIN)/64
1 0 :
f(XIN)/128 or f(XCIN)/128
1 1 :
f(XIN)/256 or f(XCIN)/256
(Note 3)
Notes 1:
2:
3:
In the 7470/7477 group, the internal clock is f(X
Since the 7470/7477 group is not provided the sub-clock
generating circuit, f(X
Since the 7470/7477 group is not provided the sub-clock
generating circuit, f(X
00F816]
IN
)/16.
CIN
) cannot be used. Fix this bit to “0.”
CIN
) cannot be used.



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