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EM78P809NP 参数 Datasheet PDF下载

EM78P809NP图片预览
型号: EM78P809NP
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器 [8-BIT Microcontroller]
分类和应用: 微控制器
文件页数/大小: 75 页 / 532 K
品牌: ELAN [ ELAN MICROELECTRONICS CORP ]
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EM78P809N  
8-Bit Microcontroller  
URTD UART Transmit Data Buffer ( Address: 09h )  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
URTD 7 URTD 6  
URTD 5  
URTD 4  
URTD 3  
URTD 2  
URTD 1  
URTD0  
Bit 7 ~ Bit 0 ( URTD 7 ~ URTD 0) : UART transmit data buffer. Write only.  
Register Bank 3 ( R3 bits ( 7,6) = (1,1) )  
SPIC1 SPI Control Register 1 ( Address: 05h )  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
SMP  
DCOL  
BRS2  
BRS1  
BRS0  
EDS  
DORD  
WBE  
Bit 7 ( SMP ) : SPI data input sample phase.  
SMP = “0” : Input data sampled at middle of data output time  
SMP = “1” : Input data sampled at the end of data output time  
In using external clock, data input sample is fixed at the middle of data output time.  
Bit 6 ( DCOL ) : SPI Data collision.  
DCOL = “0” : Data collision didn’t occur  
DCOL = “1” : Data collision occurred. It should be cleared by software.  
Bit 5 ~ Bit 3 ( BRS0 ~ BRS2 ) : SPI Clock Source Select  
Clock Source  
( Normal, Idle )  
Max. Transfer Rate  
( Fc = 8MHz )  
BRS2  
BRS1  
BRS0  
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Fc/213  
Fc/211  
Fc/210  
Fc/28  
Fc/26  
0.95Kbit/s  
3.8Kbit/s  
7.6Kbit/s  
30.5Kbit/s  
122Kbit/s  
244Kbit/s  
-
Fc/25  
External clock (/SCK pin)  
External clock (/SCK pin)  
-
Bit 2 ( EDS ) : Data shift out edge select.  
EDS = “0” : Rising edge  
EDS = “1” : Falling edge  
Bit 1 ( DORD ) : Data transmission order.  
DORD = “0” : Shift left (MSB first)  
DORD = “1” : Shift right (LSB first)  
20 •  
Product Specification (V1.0) 07.26.2005  
(This specification is subject to change without further notice)  
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