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| 型号： | M37545G4-XXXGP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP32 |
| 封装： | 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32 |
| 文件页数： | 28/65页 |
| 文件大小： | 782K |
| 代理商： | M37545G4-XXXGP |
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Rev.1.07
Mar 19, 2009
Page 32 of 60
REJ03B0140-0107
7545 Group
Fig. 31 Setting of carrier wave auto-control by timer 3
Carrier waveform
(Timer 2 output)
Timer 3 count value
Timer 3 underflow
Carrier wave output trigger bit
P42/CARR pin output
Output valid
Waveform output timing of remote-control waveform by carrier waveform output trigger bit
03 02 01 00
04
0X X 0 0 0 0X
b7
b0
12
11
0000011 X
b7
b0
10
0X X 0 1 0 1X
b7
b0
9
000011 X X
b7
b0
6
0000000 X
b7
b0
7
0X X X 1 0 1X
b7
b0
8
0000011 X
b7
b0
1
0000 X X X X
b7
b0
2
0 XXX 1 0 1 X
b7
b0
3
XXXXXXXX
b7
b0
XXXXXXXX
b7
b0
4
XXXXXXXX
b7
b0
5
Output invalid
Trigger invalid
(Successive output invalid duration)
Trigger invalid (Successive output valid duration)
Start (initial state after reset)
Timer 1, 2, 3 control register TC123 (2B16)
Set “1” to bit 1 and bit 2 to stop counting of timer 2 and timer 3.
Timer count source set register TCSS (2A16)
X: Set it to “0” or “1” arbitrary.
Select carrier waveform output for timer 3 count source by bit 2 and bit 3.
Timer 1, 2, 3 control register TC123 (2B16)
Set “0” to bit 1 and bit 2 to start counting of timer 2 and timer 3.
Carrier wave control register, CARCNT (2716)
During waveform output of remote-control, whether to output waveform or not
can be controlled by “bit 4: carrier waveform output trigger bit”.
(Refer to Figure below.)
Carrier wave control register, CARCNT (2716)
When waveform output is stopped, set “0” to
“bit 4: Carrier waveform output trigger bit”
while carrier waveform output is set to be invalid.
Timer 1, 2, 3 control register TC123 (2B16)
Set “1” to bit 1 and bit 2 to stop counting of timer 2 and timer 3.
When the carrier wave output circuit operation is started again,
execute the setting from the processing No.2.
Carrier wave control register, CARCNT (2716)
In order to change the carrier wave control from the auto-control by timer 3
to software carrier wave output, initialize the carrier wave circuit
by setting “0” to “bit 1: carrier wave output valid bit”.
Timer count source set register TCSS (2A16)
Set timer 2 count source to bit 0 and bit 1. Also, in order to initialize
carrier waveform circuit, be sure to select f(XIN)/16, f(XIN)/2 or f(XIN)/8
for timer 3 count source.
Do not select carrier waveform output (b3b2=112) for timer 3 count source.
Carrier wave control register, CARCNT (2716)
Set carrier wave control register.
bit 0: Set whether to expand waveform.
bit 1: Select “1: Carrier waveform generating function is valid”
bit 2: Select “0: Software output is invalid”
bit 3: Select “1: auto-control by timer 3 is valid.
bit 4: Select whether carrier waveform output trigger is valid or invalid.
bit 5: Select whether 455 kHz carrier wave generating mode is valid or invalid.
bit 6: Set output level of waveform.
bit 7: Set this bit to “0”.
Timer 2 secondary T2S (2D16)
Timer 2 primary T2P (2C16)
Set carrier wave “H”, “L” duration to timer 2 primary and timer 2 secondary,
respectively.(when 455 kHz carrier waveform generating mode is used,
this setting is not necessary.)
Timer 3 T3 (2E16)
Set valid period/invalid period of carrier waveform output to timer 3.
Waveform output of remote-control
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相关代理商/技术参数 |
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| M37545G6GP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37545G6GP#U0 | 功能描述:MCU 3/5V 24K 32-LQFP QZ-ROM RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR) |
| M37545G6KP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37545G6-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37545G8GP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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