HT68FU50 datasheet(143/244 Pages) HOLTEK

143 / 244 page

HT68F20/HT68F30/HT68F40/HT68F50/HT68F60

HT68FU30/HT68FU40/HT68FU50/HT68FU60

Rev. 1.50

143

March 15, 2011

S I M E N = 1

W r i t e D a t a

i n t o S I M D

W C O L = 1 ?

C l e a r W C O L

T r a n s m i s s i o n

c o m p l e t e d ?

( T R F = 1 ? )

R e a d D a t a

f r o m S I M D

C l e a r T R F

T r a n s f e r

F i n i s h e d ?

E N D

m a s t e r o r

s l a v e

M a s t e r

S l a v e

S P I t r a n s f e r

C o n f i g u r e C K P O L B ,

C K E G , C S E N a n d M L S

S I M [ 2 : 0 ] = 0 0 0 ,

0 0 1 , 0 1 0 , 0 1 1 o r 1 0 0

S I M [ 2 : 0 ] = 1 0 1

SPI Transfer Control Flowchart

S C K ( C K P O L B = 1 )

S C K ( C K P O L B = 0 )

S D O

S C S

S D I D a t a C a p t u r e

D 7 / D 0

D 6 / D 1

D 5 / D 2

D 4 / D 3

D 3 / D 4

D 2 / D 5

D 1 / D 6

D 0 / D 7

W r i t e t o S I M D

( S D O c h a n g e s a s s o o n a s w r i t i n g o c c u r s ; S D O i s f l o a t i n g i f S C S = 1 )

N o t e : F o r S P I s l a v e m o d e , i f S I M E N = 1 a n d C S E N = 0 , S P I i s a l w a y s e n a b l e d

a n d i g n o r e s t h e S C S l e v e l .

SPI Slave Mode Timing

- CKEG=1

HT68FU50 数据表(PDF) 143 Page - Holtek Semiconductor Inc

HT68FU50 数据表(HTML) 143 Page - Holtek Semiconductor Inc

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