bu6520kv ROHM Co. Ltd., bu6520kv Datasheet - Page 8

• Manufacturer Part Number: bu6520kv
• Description: Tv Encoder Built In Adaptive Image Enhancer
• Manufacturer: ROHM Co. Ltd.

2.
I
SPI BUS interface timing
2
C BUS interface timing
I
2
C BUS interface
When the automatic reading function with the AUTO pin is used, it becomes timing of SCEB to SCK as above.
It is possible to access from the register of BU6520KV to interface.In that case, SCEB is controlled by the register.
After the value is set to the register, the SCEB pin is changed into the logic set at once.
SDC
SDA
t
d
t
t
t
t
t
fSCL
tHD;STA
fLOW
tHIGH
tSU;STA
tHD;DAT
tSU;DAT
tSU;STO
SPCLK
SPCS
SPCH
SPDV
SPS
SPH
SPCLK
SCEB
SDO
Symbol
SCK
Symbol
SDI
Clock Cycle
Clock Duty
SCK Rise SCEB set-up Time
SCK Fall after SCEB Rise Time
Decision of SDO from SCK Fall
SCK Rise SDI set-up Time
SCK Rise SDI Hold Time
SDC Clock Frequency
Hold-time(repetition)『START』conditions
The first clock pulse is generated after this period.
The "L" period of SDC clock
The "H" period of SDC clock
Setup time of repetitive 『START』conditions
Data hold time
Data setup time
Setup time of the 『STOP』conditions
t
SPCS
t
HD;STA
t
LOW
Description
Parameter
t
HD;DAT
t
SU;DAT
t
t
SPDV
HIGH
8/12
t
SU;STA
t
SPS
t
SPH
MIN
45
2
4
2
-
-
-
MIN.
100
0.6
1.3
0.6
0.6
0.6
0
0
738-1105
t
TYP
736
751
HD;ST
50
-
-
-
TYP.
t
SU;STO
-
-
-
-
-
-
-
t
SPCH
MAX
8192
1102
8319
55
28
28
28
MAX.
400
-
-
-
-
-
-
t
BUF
t
t
t
CAMCKI
CAMCKI
CAMCKI
Unit
ns
ns
ns
%
Unit
kHz
us
us
us
us
us
ns
us