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| 型號： | mPD789326GB-xxx-8ET |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 38/96頁 |
| 文件大?。?/td> | 482K |
| 代理商： | MPD789326GB-XXX-8ET |
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Preliminary Product Information U14673EJ1V0PM00
38
μ
PD789322,789324,789326,789327
(1) 8-bit timer mode control register 30 (TMC30)
This register is used to control the timer 30 count clock and operation mode settings.
TMC30 is set using a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 00H.
Figure 5-14. Format of 8-Bit Timer Mode Control Register 30
Symbol
<7>
6
5
4
3
2
1
0
Address
After reset
R/W
TMC30
TCE30
0
0
TCL301
TCL300
0
TMD300
0
FF65H
00H
R/W
TCE30
TM30 count control operation
Note 1
0
TM30 count value cleared and operation stopped
1
Count operation starts
TCL301
TCL300
Timer 30 count clock selection
0
0
f
X
/2
6
(78.1 kHz)
0
1
f
X
/2
8
(19.5 kHz)
1
0
Timer 40 match signal
1
1
Carrier clock (in carrier generator mode) or timer 40 output signal (in other than carrier generator
mode)
TMD300
TMD401
TMD400
Timer 30, timer 40 operation mode selection
Note 2
0
0
0
Discrete mode
1
0
1
Cascade connection mode
0
1
1
Carrier generator mode
0
1
0
PWM output mode
Other than above
Setting prohibited
Notes 1.
The TCE30 setting will be ignored in cascade mode because in this case the count operation is
controlled by TCE40 (bit 7 of TMC40).
2.
The operation mode selection is made using a combination of TMC30 and TMC40 register settings.
Caution In cascade connection mode, the timer 40 output signal is forcibly selected for the count
clock.
Remarks 1.
f
X
: Main system clock oscillation frequency
2.
The parenthesized values apply to operation at f
X
= 5.0 MHz
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