參數(shù)資料
型號: EM78P809N
廠商: ELAN Microelctronics Corp .
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 25/75頁
文件大?。?/td> 531K
代理商: EM78P809N
EM78P809N
8-Bit Microcontroller
Product Specification
(V1.0) 07.26.2005
(This specification is subject to change without further notice)
21
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
0
0
8-bit Transmit/Receive mode
0
1
8-bit Transmit mode
1
0
8-bit Receive mode
1
1
Reserved
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
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