BU6520KV Datasheet, PDF (11/19 Pages) Rohm – Video Encoders built-in Image Correction

BU6520KV,BU6521KV
4. SPI-bus Interface Timing
ｔSPCS
ｔSPDV
SCK
SCEB
SDO
SDI
ｔSPS
ｔSPH
Fig.8 SPI-bus Interface Timing
Symbol
Description
t_SPCLK
d_SPCLK
Clock Cycle
Clock Duty
t_SPCS
SCK Rise SCEB Setup Time
t_SPCH
SCEB Rise after SCK Rise Time
t_SPDV
Decision of SDO from SCK Fall
t_SPS
SCK Rise SDI Setup Time
t_SPH
SCK Rise SDI Hold Time
*1 Default status right after reset
Technical Note
ｔSPCH
MIN TYP MAX Unit
2
736*1 8192 t_CAMCKI
45
50
55
%
4
738～
1105^*1
12289
t_CAMCKI
2
751^*1
8319 t_CAMCKI
-
-
28
ns
-
-
28
ns
-
-
28
ns
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/BU6521KV to EEPROM.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.
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11/18
2010.02 - Rev.C