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EM78P451SWM датащи(PDF) 23 Page - ELAN Microelectronics Corp

номер детали EM78P451SWM
подробное описание детали  8-Bit Microcontroller with OTP ROM
PDF  54 Pages
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производитель  EMC [ELAN Microelectronics Corp]
домашняя страница  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P451SWM датащи(HTML) 23 Page - ELAN Microelectronics Corp

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EM78P451S
8-Bit Microcontroller with OTP ROM
Product Specification (V1.0) 06.01.2004
• 19
(This specification is subject to change without further notice)
4.5.2 SPI Function Description
R ead
W rite
SP IR
re g
SPIS
re g
sh ift righ t
bit 0
bit 7
P res ca le r
4, 8, 16 , 3 2 , 64
SPIW
re g
P 92/S D I
P 93/S D O
P 9 5 / /S S
P 94/S C K
/ SS
Ed g e
Se le c t
Edg e
Sele ct
SPIC bit6
Ts c o
TM R 1 /2
S B R2 ~ S BR0
8
C lo ck S e lect
2
No is e
Filter
SPIC re g
S BR0 ~ S BR 2
RBF
RBF I
B u ffe r F u ll D e te c to r
S e t to 1
SE
Fig. 11 SPI Block Diagram
2 1 0
SPIC
7~0
SPIWB
SPI Shift Buffer
DATA BUS
FOSC
1 0
T1CON
6 4
SPIC
1 0
4
SPIS
SPIC
SPI
7
2
INTC
7~0
SPIRB
SDO
SDI
Shift Clock
Fig. 12 The Function Block Diagram of SPI Transmission
The following describes the function of each block and explains how to carry out the
SPI communication with the signals depicted in Fig.11 and Fig.12:



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