參數(shù)資料
型號： M3826AMFA-XXXGP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, LQFP-100
文件頁數(shù)： 25/93頁
文件大?。?/td> 996K
代理商： M3826AMFA-XXXGP
Rev.2.00
May. 24, 2006
page 31 of 90
REJ03B0028-0200
3826 Group (A version)
(2) Asynchronous Serial I/O (UART) Mode
Clock asynchronous serial I/O mode (UART) is selected by setting
the serial I/O1 mode selection bit 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 a buffer regis-
ter, but the two buffers have the same address (001816) in
memory. Since the shift register cannot be written to or read from
directly, transmit data is written to the transmit buffer, and receive
data is read from the receive buffer.
The transmit buffer can also hold the next data to be transmitted
during transmitting, and the receive buffer register can hold re-
ceived one-byte data while the next one-byte data is being re-
ceived.
Fig. 28 Block diagram of UART serial I/O1
Fig. 29 Operation of UART serial I/O1 function
XIN
1/4
OE
PE FE
1/16
Data bus
Receive buffer register
Address 001816
Receive shift register
Receive buffer full flag (RBF)
Receive interrupt request
Baud rate generator
Frequency division ratio 1/(n+1)
Address 001C16
ST/SP/PA generator
Transmit buffer register
Data bus
Transmit shift register
Address 001816
Transmit shift register shift completion flag (TSC)
Transmit buffer empty flag (TBE)
Transmit interrupt request
Address 001916
STdetector
SP detector
UART control register
Address 001B16
Character length selection bit
Address 001A16
BRG count source selection bit
Transmit interrupt source selection bit
Serial I/O1 synchronization clock selection bit
Clock control circuit
Character length selection bit
7 bits
8 bits
Serial I/O1 control register
P46/SCLK1
Serial I/O1 status register
P44/RXD
P45/TXD
TSC = “0”
TBE = “1”
RBF = “0”
TBE = “0”
RBF = “1”
ST
D0
D1
SP
D0
D1
ST
SP
TBE = “1”
TSC = “1”
ST
D0
D1
SP
D0
D1
ST
SP
Transmit buffer register write signal
Generated at 2nd bit in 2-stop-bit mode
1 start bit
7 or 8 data bits
1 or 0 parity bit
1 or 2 stop bit (s)
1 : Error flag detection occurs at the same time that the RBF flag becomes “1” (at 1st stop bit for reception).
2 : The serial I/O1 receive interrupt request occurs when the receive buffer full flag (RBF) becomes “1”.
3 : Select the serial I/O1 transmit interrupt request occurrence factor between when the transmit buffer register has emptied (TBE = “1”) or
after the transmit shift operation has ended (TSC = “1”), by setting the transmit interrupt source selection bit (TIC) of the serial
I/O1 control register.
Notes
Serial output TxD
Serial input RxD
Receive buffer register read signal
Transmit or receive clock
(Notes 1, 2)
相關(guān)PDF資料
PDF描述
M3826AMFA-XXXGP 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP100
M38268MCA-XXXGP 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP100
M3826AMFA-XXXFP 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP100
M3826AMFLXXXGP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP100
M38268MCLXXXFP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP100
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M3826-BK001 制造商:Alpha Wire 功能描述:
M3826-BK002 制造商:Alpha Wire 功能描述:
M3826-BK005 制造商:Alpha Wire 功能描述:
M3826-BK199 制造商:Alpha Wire 功能描述:
M3826-BLACK-100 制造商:Alpha Wire 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*