參數(shù)資料
型號(hào): MC80F0216Q
廠商: Electronic Theatre Controls, Inc.
元件分類: 8位微控制器
英文描述: 8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 8位單晶片微控制器
文件頁(yè)數(shù): 55/128頁(yè)
文件大?。?/td> 1408K
代理商: MC80F0216Q
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Preliminary
MC80F0208/16/24
MAR. 2005 Ver 0.2
51
Figure 14-3 TM4 Register
14.1 8-bit Timer / Counter Mode
The MC80F0208/16/24 has four 8-bit Timer/Counters, Timer 0,
Timer 1, Timer 2, Timer 3. The Timer 0, Timer 1 are shown in
Figure 14-4 and Timer 2, Timer 3 are shown in Figure 14-5.
The “timer” or “counter” function is selected by control registers
TM0, TM1, TM2, TM3 as shown in Figure 14-1. To use as an 8-
bit timer/counter mode, bit CAP0, CAP1, CAP2, or CAP3 of
TMx should be cleared to “0” and 16BIT of TM1 or TM3 should
be cleared to "0"(Figure 14-4). These timers have each 8-bit
count register and data register. The count register is increased by
every internal or external clock input. The internal clock has a
prescaler divide ratio option of 1, 2, 4, 8, 16, 32, 64, 128, 256,
512, 1024, 2048 or external clock (selected by control bits
TxCK0, TxCK1, TxCK2 of register TMx).
BTCL
T4CK1
5
4
3
2
1
0
-
-
T4CN
INITIAL VALUE: --00 0000
B
ADDRESS: 0DC
H
TM4
T4ST
T4CK0
CAP4 T4CK2
Bit Name
CAP4
Bit Position
TM4.5
Description
0: Timer/Counter mode
1: Capture mode selection flag
000: 8-bit Timer, Clock source is f
XIN
÷
2
001: 8-bit Timer, Clock source is f
XIN
÷
4
010: 8-bit Timer, Clock source is f
XIN
÷
8
011: 8-bit Timer, Clock source is f
XIN
÷
16
100: 8-bit Timer, Clock source is f
XIN
÷
64
101: 8-bit Timer, Clock source is f
XIN
÷
256
110: 8-bit Timer, Clock source is f
XIN
÷
1024
111: 8-bit Timer, Clock source is f
XIN
÷
2048
0: Timer count pause
1: Timer count start
0: When cleared, stop the counting.
1: When set, Timer 0 Count Register is cleared and start again.
T4CK2
T4CK1
T4CK0
TM4.4
TM4.3
TM4.2
T4CN
TM4.1
T4ST
TM4.0
7
6
5
4
3
2
1
0
INITIAL VALUE: 0FF
H
ADDRESS: 0DD
TDR4H
R/W R/W R/W R/W R/W R/W R/W R/W
R/W
R/W
R/W
R/W
R/W
R/W
7
6
5
4
3
2
1
0
INITIAL VALUE: 0FF
H
ADDRESS: 0DE
TDR4L
R/W R/W R/W R/W R/W R/W R/W R/W
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