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參數資料
| 型號： | MB89951PFM |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 5 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 0.65 MM PITCH, QFP-64 |
| 文件頁數： | 64/110頁 |
| 文件大?。?/td> | 619K |
| 代理商： | MB89951PFM |
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HARDWARE CONFIGURATION
2– 42
(c) Serial status and data register (SSD)
This register is used to indicate the current status of the UART port. When
the data communication length is 9 bits, the most significant data (bit 8) is
included.
When the SIDR register is read after reading the SSD register with the
RDRF flag set to 1, the RDRF flag is cleared. When this flag is set to 1,
the receiver interrupt request is output.
[Bit 6] ORFE:
The ORFE flag is used to indicate that an overrun or framing error has
occurred. This flag is initialized to 0 at reset.
If this flag is set, data is not transferred from the receive shift register to the
SIDR register.
When the SIDR register is read after reading the SSD register with the
ORFE flag set to 1, the ORFE flag is cleared. When this flag is set to 1,
the receiver interrupt request is output.
The status of input data is specified by the RDRF and ORFE flags as follows:
Peripherals
SMC1
Address: 0020H
SRC
Address: 0021H
Address: 0022H
(Initial value)
00100-1XB
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RDRF
ORFE
TDRE
TIE
RIE
—
(R)
(R/W)
(R)
SSD
Address: 0022H
SIDR
Address: 0023H
SODR
Address: 0023H
[Bit 7] RDRF:
The RDRF flag is used to indicate the data status of the serial input data
register (SIDR).
SMC2
Address: 0024H
TD8
RD8
/TP
/RP
0
1
Empty
(Initial value)
Contains data
0
1
Normal
(Initial Value)
Error
0
1
0
1
SIDR data status
0
1
Empty
Framing error (If new data is input under this condition, RDRF is not set.)
Normal data
Overrun (previous data remains)
RDRF ORFE
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MB89953 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89953PFM | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB8995X | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89960 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
| MB89965 | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-bit Proprietary Microcontroller |
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