參數資料
型號： M38039G8HKP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
封裝： 14 X 14 MM, 0.80 MM PITCH, PLASTIC, LQFP-64
文件頁數： 46/103頁
文件大小： 1412K
代理商： M38039G8HKP
REJ03B0166-0113 Rev.1.13
Aug 21, 2009
Page 47 of 100
3803 Group (Spec.H QzROM version)
(2) Asynchronous Serial I/O (UART) Mode
Clock asynchronous serial I/O mode (UART) can be selected by
clearing the serial I/O1 mode selection bit (b6) of the serial I/O1
control register to “0”.
Eight serial data transfer formats can be selected, and the transfer
formats used by a transmitter and receiver must be identical.
The transmit and receive shift registers each have the buffer
register 1, but the two buffer registers have the same address in a
memory. Since the shift register cannot be written to or read from
directly, transmit data is written to the transmit buffer register 1,
and receive data is read from the receive buffer register 1.
The transmit buffer register 1 can also hold the next data to be
transmitted, and the receive buffer register 1 can hold a character
while the next character is being received.
Fig 38. Block diagram of UART serial I/O1
Fig 39. Operation of UART serial I/O1
f(XIN)
1/4
OE
PE FE
1/16
Data bus
Receive buffer register 1
Address 001816
Receive shift register 1
Receive buffer full flag (RBF)
Receive interrupt request (RI)
Baud rate generator
Frequency division ratio 1/(n+1)
Address 001C16
ST/SP/PA generator
Transmit buffer register 1
Transmit shift register 1
Address 001816
Transmit shift
completion flag (TSC)
Transmit buffer empty flag (TBE)
Transmit interrupt request (TI)
Address 001916
ST detector
SP detector
UART1 control register
Address 001B16
Character length selection bit
Address 001A16
BRG count source selection bit
Transmit interrupt source selection bit
Serial I/O1 synchronous clock selection bit
Clock control circuit
Character length selection bit
7 bits
8 bits
Serial I/O1 status register
Serial I/O1 control register
P46/SCLK1
P44/RXD1
P45/TXD1
(f(XCIN) in low-speed mode)
TSC=0
TBE=1
RBF=0
TBE=0
RBF=1
TBE=1
TSC=1*
ST
D0
D1
SP
D0
D1
ST
SP
Transmit or
receive clock
Transmit buffer register 1
write signal
Serial output
TXD1
Receive buffer register 1
read signal
Serial input RXD1
Generated at 2nd bit in 2-stop-bit mode
1 start bit
7 or 8 data bit
1 or 0 parity bit
1 or 2 stop bit (s)
Notes 1: Error flag detection occurs at the same time that the RBF flag becomes “1” (at 1st stop bit, during reception).
2: As the transmit interrupt (TI), when either the TBE or TSC flag becomes “1”, can be selected to occur depending on the setting of the transmit interrupt source
selection bit (TIC) of the serial I/O1 control register.
3: The receive interrupt (RI) is set when the RBF flag becomes “1”.
4: After data is written to the transmit buffer when TSC=1, 0.5 to 1.5 cycles of the data shift cycle are necessary until changing to TSC=0.
ST
D0
D1
SP
D0
D1
ST
SP
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相關代理商/技術參數
參數描述
M38039G8HKP#U0 功能描述:IC 740/3803 MCU QZROM 64LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數:40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
M38039G8HSP#U0 功能描述:IC 740/3803 MCU QZROM 64DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數:40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
M38039GCHHP#U0 功能描述:IC 740/3803 MCU QZROM 64LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數:40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
M38039GCHKP#U0 功能描述:IC 740/3803 MCU QZROM 64LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數:40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
M38039GCHSP#U0 功能描述:IC 740/3803 MCU QZROM 64DIP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設備:POR，PWM，WDT 輸入/輸出數:40 程序存儲器容量:- 程序存儲器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
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