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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  
Bit 0 ( WBE ) : Write buffer empty flag. Read only.  
WBE = “0” : Write buffer empty  
WBE = “1” : Not empty, set to “1” automatically when writing data to the data  
buffer.  
SPIC2 SPI Control Register 2 (Address : 06h )  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
SPIS  
0
0
0
0
SPIM1  
SPIM0  
RBF  
Bit 7 ( SPIS ) : SPI start shift, set the bit to “1” and shift register starts to shift. It is  
cleared by hardware when shifting is finished. In transferring the  
next data, it must be set to “1” again.  
SPIS = “0” : Shift finish  
SPIS = “1” : Shift starts  
Bit 2 ~ Bit 1 ( SPIM1 ~ SPIM0) : SPI Transfer Mode Select  
TC2CK1  
TC2CK0  
Transfer Mode  
8-bit Transmit/Receive mode  
8-bit Transmit mode  
8-bit Receive mode  
Reserved  
0
0
1
1
0
1
0
1
Bit 0 ( RBF ) : Set to 1 by Buffer Full Detector, and cleared to 0 automatically when  
reading data from the SPID register. RBF bit will be cleared by  
hardware when enabling SPI. And RBF bit is read-only. Therefore,  
reading the SPRL register is necessary to avoid data collision to  
occur (DCOL).  
SPID (SPI Data Buffer ( Address: 07h )  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
SPID7  
SPID6  
SPID5  
SPID4  
SPID3  
SPID2  
SPID1  
SPID0  
Bit 7 ~ Bit 0 ( SPID7 ~ SPID0 ) : SPI data buffer.  
PHC1 Pull High Control Register 1 ( Address: 0Ah )  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
Bit 2  
Bit 1  
Bit 0  
-
-
/PHE81  
/PHE80  
/PHE63  
/PHE62  
/PHE61  
/PHE60  
Bit 5 ~ 4 ( /PHE81 ~ /PHE80 ) : bits 1, 0 of Port 8 Pull high enable bit  
/PHE8x = “0” : Enable P8x pull high  
/PHE8x = “1” : Disable P8x pull high  
Product Specification (V1.0) 07.26.2005  
21  
(This specification is subject to change without further notice)  
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