參數(shù)資料
型號: μPD789197
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 49/146頁
文件大?。?/td> 630K
代理商: ΜPD789197
Preliminary Product Information
49
μ
PD789186, 789187, 789196, 789197
(3) 8-bit timer mode control register 82 (TMC82)
TMC82 determines whether to enable or disable 8-bit timer register 82 (TM82) and specifies the count clock for
TM82. It also controls the operation of the output control circuit of 8-bit timer counter 82.
TMC82 is manipulated using a 1-bit or 8-bit memory manipulation instruction.
A RESET input clears TMC82 to 00H.
Figure 6-20. 8-Bit Timer Mode Control Register 82 Format
TCE82
PWME82
0
0
0
TCL821TCL820
TOE82
TMC82
Symbol
Address
When reset
R/W
FF5BH
00H
R/W
6
7
5
4
3
2
1
0
TCL821
0
0
1
1
8-bit timer register 82 count clock selection
TCL820
0
1
0
1
f
X
/2
f
X
/2
f
XT
Not to be specified
TCE82
0
1
8-bit timer register 82 operation control
Operation disabled (TM82 is cleared to 0.)
Operation enabled
PWME82
0
1
PWM output selection
Counter operation
PWM output
(156.25 kHz)
(39.1 kHz)
(32.768 kHz)
TOE82
0
1
8-bit timer/counter 82 output control
Output disabled (port mode)
Output enabled
Note
Note
When TOE82 is set to 1, BZOE90 must be set to 0 (see
Figure 6-13
).
Cautions 1. Always stop the timer before setting TMC82.
2. For PWM mode operation, the interrupt mask flag (TMMK82) must be set.
Remarks 1.
f
X
: Main system clock oscillation frequency
2.
f
XT
: Subsystem clock oscillation frequency
3.
The parenthesized values apply to operation at f
X
= 5.0 MHz or f
XT
= 32.768 kHz.
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