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參數(shù)資料
| 型號： | 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)： | 47/114頁 |
| 文件大?。?/td> | 937K |
| 代理商： | M34506M4-XXXFP |
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Rev.2.00
Aug 28, 2006
page 34 of 119
7643 Group
REJ03B0054-0200
The Framing Error Flag (FER) is set to “1” when the number of
stop bit of the received data does not correspond with the selec-
tion with the Stop Bit Length Select Bit (STB).
The Overrun Flag Flag (OER) is set to “1” if the previous data in
the low-order byte of the receive buffer register 1 (addresses
003416) is not read before the current receive operation is com-
pleted. It is also set “1” if any one of error flags is “1” for the
previous data and the current receive operation is completed. Be
sure to read UART status register to clear the error flags before
the next reception has been completed.
[UART Control Register (UCON)] 003316
The UART control register consists of eight control bits for the
UART function. This register can enable the CTS, RTS and UART
address mode.
If the Transmit Enable Bit (TEN) is set to “0” (disabled) while a
data is being transmitted, the transmitting operation will stop after
the data has been transmitted. If the Receive Enable Bit (REN) is
set to “0” (diabled) while a data is being received, the receiving
operation will stop after the data has been received.
When setting the Transmit Initialization Bit (TIN) to “1”, the TEN bit
is set to “0” and the UART status register will be set to “0316” after
the data has been transmitted. To retransmit, set the TEN to “1”
and set a data to the transmit buffer register again. The TIN bit will
be cleared to “0” one cycle later after the TIN bit has been set to
“1”.
Setting the Receive Initialization Bit (RIN) to “1” sets all of the
REN, RBF and the receive error flags (PER, FER, OER, SER) to
“0”. The RIN bit will be cleared to “0” one cycle later after the RIN
bit has been set to “1”.
_______
When CTS or RTS function is disabled, pins CTS and RTS can be
used as ordinary I/O ports, correspondingly.
[UART Transmit/Receive Buffer Registers 1, 2 (UTRB1/
UTRB2)] 003416, 003516
The transmit buffer register and the receive buffer register are lo-
cated at the same address. The transmit buffer register is
write-only and the receive buffer register is read-only. If a charac-
ter bit length is 7 bits, the MSB of received data is invalid. If a
character bit length is 7 or 8 bits, the received contents of UTRB2
are also invalid. If a character bit length is 9 bits, the received
high-order 7 bits of UTRB2 are “0”.
[UART RTS Control Register (URTS)] 003616
The delay time from the reception of the last stop bit to the asser-
_______
tion of RTS is selectable using the RTS Assertion Delay Count
_______
Select Bits. If the stop bit is detected before RTS assertion delay
_______
time has expired, the RTS pin is kept “H”. The RTS assertion de-
lay count starts after the last data reception is completed.
Setting the RIN bit to “1” resets the URTS. After setting the RIN bit
to “1”, set this URTS.
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PDF描述 |
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| 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 |
相關代理商/技術參數(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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