參數(shù)資料
型號(hào): M37641F8FP
元件分類(lèi): 微控制器/微處理器
英文描述: 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 20 MM, 0.80 MM, PLASTIC, QFP-80
文件頁(yè)數(shù): 69/140頁(yè)
文件大小: 1694K
代理商: M37641F8FP
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7641 Group
Rev.4.00
Aug 28, 2006
page 32 of 135
REJ03B0191-0400
UART1, UART2
The UART consists of two channels: UART1 and UART2. Each
has a dedicated timer provided to generate transfer clocks and op-
erates independently. Both UART1 and UART2 have the same
functions.
Twelve serial data transfer formats can be selected, and the trans-
fer formats used by a transmitter and receiver must be identical.
The transmit and receive shift registers each have a buffer, but the
two buffers 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, and receive data is read
from the receive 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.
The transfer speed (baud rate) is expression as follows:
Transfer speed (baud rate) = fi / {(n + 1) 16 }
n: The contents of UARTx (x = 1, 2) baud rate generator
fi: Using UART clock prescaling select bits, select any one of
φ, φ/
8,
φ/32, φ/256, SCSGCLK, SCSGCLK/8, SCSGCLK/32 and
SCSGCLK/256
OER
PER
FER
003416
003C16
Receive buffer register 1
Receive buffer register 2
Receive shift register 1
Receive shift register 2
Address 003016
Address 003816
UARTx mode register
UARTx control register
Address 003316
Address003B16
Receive buffer full flag (RBF)
Receive buffer full interrupt request (UxRBF)
Receive summing error interrupt request (UxES)
SPdetector
UART character length select bits
7 bits
8 bits
9 bits
ST
detector
P85/URXD1
P81/URXD2/SCLK
P84/UTXD1
P80/UTXD2/SRDY
SCSGCLK
Prescaler
1/1
1/8
1/32
1/256
Baud rate generator
ST/SP/PA generator
Clock control circuit
1/16
Addresses 003516
Addresses 003D16
P86/CTS1
P82/CTS2/SRXD
RTS control register
P87/RTS1
P83/RTS2/STXD
Frequency
division ratio
1/(n+1)
Addresses 003616
Addresses 003E16
Addresses 003116
Addresses 003916
Character length select bit
Transmit shift register 1
Transmit shift register 2
Transmit buffer register 1
Transmit buffer register 2
Transmit comple flag
(TCM)
Transmit interrupt source select bit
Transmit interrupt
request (UxTX)
Transmit buffer empty
flag (TBE)
UART status register
Data bus
φ
UART clock
prescaling select bits
UART clock
select bit
003416
003C16
Addresses 003516
Addresses 003D16
Address 003216
Address 003A16
Fig. 26 UARTx (x = 1, 2) block diagram
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37641F8FP#U0 功能描述:IC 740 MCU FLASH 32K 80QFP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:740/7600 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設(shè)備:POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB(20K x 16) 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤(pán) 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
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