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參數(shù)資料
| 型號(hào)： | M34506M4-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, MICROCONTROLLER, PDSO20 |
| 封裝： | 5.30 X 12.60 MM, 1.27 MM PITCH, PLASTIC, SOP-20 |
| 文件頁數(shù)： | 43/114頁 |
| 文件大小： | 937K |
| 代理商： | M34506M4-XXXFP |
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Rev.2.00
Aug 28, 2006
page 30 of 119
7643 Group
REJ03B0054-0200
UART
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 UART baud rate generator
fi: Using UART clock prescaling select bits, select any one of
φ, φ/8,
φ/32, φ/256
OER
PER
FER
003416
003516
Receive buffer register 1
Receive buffer register 2
Receive shift register 1
Receive shift register 2
Address 003016
UART mode register
UART control register
Address 003316
Receive buffer full flag (RBF)
Receive buffer full interrupt request (URBF)
Receive summing error interrupt request (UES)
SPdetector
UART character length select bits
7 bits
8 bits
9 bits
ST
detector
P85/URXD
P84/UTXD
Prescaler
1/1
1/8
1/32
1/256
Baud rate generator
ST/SP/PA generator
Clock control circuit
1/16
P86/CTS
RTS control register
P87/RTS
Frequency division
ratio 1/(n+1)
Addresses 003616
Addresses 003116
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 (UTX)
Transmit buffer empty
flag (TBE)
UART status register
Data bus
φ
UART clock
prescaling
select bits
003416
003516
Address 003216
Fig. 24 UART block diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34506E4FP | 4-BIT, OTPROM, MICROCONTROLLER, PDSO20 |
| M34508G4HFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34508G4GP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34508G4H-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34508G4-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34507E4FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34507M2-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES |
| M34507M4-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4GP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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