SPFD54124B Drise, SPFD54124B Datasheet - Page 202
SPFD54124B
Manufacturer Part Number
SPFD54124B
Description
396-Channel 6-Bit Source Driver
Manufacturer
Drise
Datasheet
1.SPFD54124B.pdf
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7.15. Sleep Out-Command and Self-Diagnostic Functions of the Display Module
7.15.1. Register Loading Detection
Sleep Out-command is a trigger for an internal function of the display module, which indicates, if the display module loading function of
factory default values from OTP (one-time programming memory) to registers of the display controller is working properly.
There are compared factory values of the OTP and register values of the display controller by the display controller. If those both values
(OTP and register values) are same, there is inverted (=increased by 1) a bit in “Read Display Self-Diagnostic Result (0Fh)” (=RDDSDR)
(The used bit of this command is D7). If those both values are not same, this bit (D7) is not inverted (= increased by 1).
The flow chart for this internal function is following:
Note: There is not compared and loaded register values, which can be changed by user (00h to AFh and DAh to DDh), by the display
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module.
Loads values from
OTP to registers
No
Sleep Out Mode
Are OTP and register
Sleep Out (11h)
Sleep In (10h)
Compares OTP and
values same ?
D7 inverted
register values
Yes
Sleep In Mode
202
Power on sequence
SPFD54124B
RDDSDR’s D7=0
Preliminary
HW reset
SW reset
Preliminary Version: 0.6
APR. 26, 2007
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