參數(shù)資料
型號(hào): EM78P809NS
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(yè)數(shù): 24/75頁(yè)
文件大?。?/td> 531K
代理商: EM78P809NS
EM78P809N
8-Bit Microcontroller
20
Product Specification (V1.0) 07.26.2005
(This specification is subject to change without further notice)
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
BRS2
BRS1
BRS0
Clock Source
( Normal, Idle )
Max. Transfer Rate
( Fc = 8MHz )
0
0
0
Fc/
2
13
0.95Kbit/s
0
0
1
Fc/
2
11
3.8Kbit/s
0
1
0
Fc/
2
10
7.6Kbit/s
0
1
1
Fc/
2
8
30.5Kbit/s
1
0
0
Fc/
2
6
122Kbit/s
1
0
1
Fc/
2
5
244Kbit/s
1
1
0
External clock (/SCK pin)
-
1
1
1
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)
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