參數(shù)資料
型號: m789436
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-Bit Single-Chip Microcontrollers
中文描述: 8位單芯片微控制器
文件頁數(shù): 45/144頁
文件大?。?/td> 1378K
代理商: M789436
CHAPTER 7 8-BIT TIMER
User’s Manual U15075EJ1V0UM00
139
Figure 7-4. Format of 8-Bit Timer Mode Control Register 50
Symbol
<7>
<6>
5
4
3
2
1
<0>
Address
After reset
R/W
TMC50
TCE50
TEG50
TCL502
TCL501
TCL500
TMD501
TMD500
TOE50
FF4DH
00H
R/W
TCE50
Control of TM50 count operation
Note 1
0
Clears TM50 count value and stops operation
1
Starts count operation
TEG50
Valid edge selection for TM50 count clock
0
Counts at the rising edge of the count clock
1
Counts at both edges of the count clock
Note 2
TCL502
TCL501
TCL500
Selection of timer 50 count clock
00
0
fX (5.0 MHz)
00
1
fX/2
3
(625 kHz)
01
0
fX/2
7
(39.1 kHz)
01
1
fXT (32.768 kHz)
1
0
Timer 60 match signal
1
0
1
Carrier clock (in carrier generator mode) or timer 60 output signal (in a mode other
than carrier generator mode)
Other than above
Setting prohibited
TMD501
TMD500
TMD601
TMD600
Selection of operation mode for timer 50 and timer 60
Note 2
0
Discrete mode (8-bit timer counter mode)
0
1
0
1
Cascade connection mode (16-bit timer counter mode)
0
1
Carrier generator mode
1
0
1
0
Timer 50: PWM free-running mode
Timer 60: PWM pulse generator mode
Other than above
Setting prohibited
TOE50
Control of timer output
0
Output disabled
1
Output enabled
Notes 1.
Since the count operation is controlled by TCE40 (bit 7 of TMC40) in cascade connection mode, any
setting for TCE30 is ignored.
2.
The selection of both edges is valid only in the PWM output mode. In 8-bit counter mode or cascade
connection mode, counting is done using the rising edge even if TEG50 is set to “1”.
3.
The operation mode selection is set to both the TMC30 register and TMC40 register.
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