參數(shù)資料
型號: M38851M1-XXXHP
廠商: Renesas Technology Corp.
英文描述: Single 2.7-V High-Slew-Rate Rail-to-Rail Output Operational Amplifier With Shutdown 8-SOIC -40 to 125
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 31/103頁
文件大?。?/td> 1580K
代理商: M38851M1-XXXHP
32
3885 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
(2) Asynchronous Serial I/O (UART) Mode
Universal asynchronous transmitter receiver (UART) serial I/O
mode can be selected by clearing the serial I/O mode selection bit
of the serial I/O 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.
Both the transmit and receive shift registers have a buffer, but the
two buffers assigned the same address. Since the shift register
cannot be written to or read from directly, transmit data is written
to the transmit buffer register, and receive data is read from the re-
ceive buffer register.
The transmit buffer register can also hold the next data to be
transmitted, and the receive buffer register can hold a character
while the next character is being received.
Fig. 28 Block diagram of UART mode
f(XIN)
1/4
OE
PE FE
1/16
Data bus
Receive buffer register
Receive shift register
Receive buffer full flag (RBF)
Receive interrupt request (RI)
Baud rate generator
Frequency division ratio 1/(n+1)
ST/SP/PA generator
Transmit buffer register
Data bus
Transmit shift register
Transmit shift completion flag (TSC)
Transmit buffer empty flag (TBE)
Transmit interrupt request (TI)
ST detector
SP detector
UART control register
Character length selection bit
BRG count source selection bit
Transmit interrupt source selection bit
Serial I/O synchronous clock selection bit
Clock control circuit
Character length selection bit
7 bits
8 bits
Serial I/O control register
P46/SCLK
Serial I/O status register
P44/RXD
P45/TXD
(f(XCIN) in low-speed mode)
Address
001816
Address
001A16
Address 001B16
Address 001916
相關(guān)PDF資料
PDF描述
M38851M2-XXXHP Dual 2.7-V High Slew Rate Rail-To-Rail Output Operational Amplifier 8-SOIC 0 to 70
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M38851M4-XXXHP Dual 2.7-V High Slew Rate Rail-To-Rail Output Operational Amplifier 8-MSOP 0 to 70
M38851M8-XXXHP Dual 2.7-V High Slew Rate Rail-To-Rail Output Operational Amplifier 8-MSOP 0 to 70
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M38851M2-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38851M3-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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M38851M6-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER