3.3 Serial Peripheral Interface Timing
The following
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℃
Write mode
Symbol
Parameter
Min Typ Max Unit
fSCL
SCL frequency (Write Mode)
20 MHz
tCSSU
Time CSB has to be low before the first rising edge of SCLK
20
ns
tCSHLD Time CSB has to remain low after the last falling edge of SCLK
20
ns
tCSHIGH Time CSB has to remain high between two transfers
100
ns
tSCLHIGH Part of the clock period where SCL has to remain high
25
ns
tSCLLOW Part of the clock period where SCL has to remain low
25
ns
tSISU
Time SI (SDA Write Mode) has to be stable before the next rising edge of SCL 10
ns
tSIHLD Time SI (SDA Write Mode) has to remain stable after the rising edge of SCL 40
ns
Read mode
Symbol
Parameter
Min Typ Max Unit
fSCL
SCL frequency (Read Mode)
2.5 MHz
tCSSU
Time CSB has to be low before the first rising edge of SCLK
100
ns
tCSHLD Time CSB has to remain low after the last falling edge of SCLK
50
ns
tCSHIGH Time CSB has to remain high between two transfers
250
ns
tSCLHIGH Part of the clock period where SCL has to remain high
180
ns
tSCLLOW Part of the clock period where SCL has to remain low
180
ns
tSOSU
Time SO(SDA Read Mode) will be stable before the next rising edge of SCL
50
ns
tSOHLD Time SO (SDA Read Mode) will remain stable after the falling edge of SCL
0
ns
Note: All timings are based on 20% to 80% of VDDIO-VSS
Figure 3.3-1: Serial peripheral interface characteristics
3.4 Power Consumption
Parameter
Symbol
Conditions
TYP
Max
Unit
Remark
Panel power consumption during update
-
25
℃
300
mAs
-
Deep sleep mode
-
25
℃
2
uA
-
Mas=update average current × update time
CS#
t
CKPER
t
CSHIGH
t
CSSU
t
SCLHIGH
t
CSHLD
t
SCLLOW
SCL
t
SISU
t
SIHLD
SDA
(Write
Mode)
t
SOSU
t
SOHLD
SDA
(Read
Mode)
GDEH075Z90
15
/
38
7.5 inch Series
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