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| 型号： | M37540E8GP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO36 |
| 封装： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-36 |
| 文件页数： | 36/90页 |
| 文件大小： | 830K |
| 代理商： | M37540E8GP |
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7540 Group
Rev.4.00
Jun 21, 2004
page 39 of 82
REJ03B0011-0400Z
Serial I/O2 operation
By writing to the serial I/O2 register (address 003116) the serial I/
O2 counter is set to “7”.
After writing, the SDATA2 pin outputs data every time the transfer
clock shifts from “H” to “L”. And, as the transfer clock shifts from
“L” to “H”, the SDATA2 pin reads data, and at the same time the
contents of the serial I/O2 register are shifted by 1 bit.
When the internal clock is selected as the transfer clock source,
the following operations execute as the transfer clock counts up to
8.
Serial I/O2 counter is cleared to “0”.
Transfer clock stops at an “H” level.
Interrupt request bit is set.
Shift completion flag is set.
Also, the SDATA2 pin is in a high impedance state after the data
transfer is completed (refer to Fig.37).
When the external clock is selected as the transfer clock source,
the interrupt request bit is set as the transfer clock counts up to 8,
but external control of the clock is required since it does not stop.
Notice that the SDATA2 pin is not in a high impedance state on the
completion of data transfer.
Also, after the receive operation is completed, the transmit/receive
shift completion flag is cleared by reading the serial I/O2 register.
At transmit, the transmit/receive shift completion flag is cleared
and the transmit operation is started by writing to serial I/O2 regis-
ter.
Fig. 37 Serial I/O2 timing (LSB first)
D0
Note :
Synchronous clock
Serial I/O2 register
write signal
Transfer clock
(Note)
SDATA2 at serial I/O2
input receive
SDATA2 at serial I/O2
output transmit
Serial I/O2 interrupt request bit set
Transmit/receive shift completion flag set
D1
D2
D3
D4
D5
D6
D7
When the internal clock is selected as the transfer and the direction register of P1 3/SDATA2 pin is set to the input mode,
the SDATA2 pin is in a high impedance state after the data transfer is completed.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37540E8GP#U0 | 功能描述:IC 7540 MCU OTP 32K 32LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 产品培训模块:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 标准包装:1 系列:M16C™ M32C/80/87 核心处理器:M32C/80 芯体尺寸:16/32-位 速度:32MHz 连通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外围设备:DMA，POR，PWM，WDT 输入/输出数:121 程序存储器容量:384KB（384K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:24K x 8 电压 - 电源 (Vcc/Vdd):3 V ~ 5.5 V 数据转换器:A/D 34x10b，D/A 2x8b 振荡器型:内部 工作温度:-20°C ~ 85°C 封装/外壳:144-LQFP 包装:托盘 产品目录页面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M37540E8SP | 制造商:Renesas Electronics Corporation 功能描述: |
| M37540E8T-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37540E8T-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 740 SERIES |
| M37540E8V-XXXFP | 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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