UPD161622 NEC, UPD161622 Datasheet - Page 78

• Manufacturer Part Number: UPD161622
• Description: 396 OUTPUT TFT-LCD SOURCE DRIVER
• Manufacturer: NEC

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6. RESET
command will also initialize each register to its default value. These default values are listed in the table below.
Remark O: Default value set, X: Default value not set
Notes 1. The internal counters are initialized only by a reset from the /RESET pin. Be sure to perform reset via the
78
If the /RESET input becomes L or the reset command is input, the internal timing generator is initialized. The reset
Index register
Control register 1
Control register 2
Data access control register
X address register
Y address register
MIN. X address register
MAX. X address register
MIN. Y address register
MIN. Y address register
Display memory register
Scroll area start line register
Scroll area line count register
Scroll step count register
Partial off area color register
Partial 1 display area start line register
Partial 2 display area start line register
Partial 1 display area line count register
Partial 2 display area line count register
Power supply control register 1
Power supply control register 2
VCOM output center value setting register
Output stage capacity setting register
Pre-charge direction setting data register
Calibration register
Pre-charge period supplement pulse setting register
Output port register
Input port register
Interface operating voltage setting register
Internal logic operating voltage setting register
Test mode
-reference-voltage generator capacity setting register
-contrast value setting register 1
-contrast value setting register 2
-contrast value setting register 3
-contrast value setting register 4
-correction input disconnect register
2. The contents of RAM are saved in the case of both reset by /RESET pin and reset by reset command.
3. The following value is set as the calibration setting time, t
/RESET pin at power application.
Note that the RAM contents are undifined. immediately after the power is turned on.
tcal = 1/f
Note 3
OSC
Note2
Register
x 37
Data Sheet S15649EJ2V0DS
R114
R115
R10
R11
R12
R15
R16
R17
R19
R20
R21
R22
R23
R25
R26
R29
R30
R31
R36
R37
R38
R39
R40
R42
R45
R46
R49
R50
Rn
R0
R1
R5
R6
R7
R8
R9
IR
/RESET Pin
cal
, in a reset by reset command.
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Note1
Reset Command
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
X
PD161622
Default Value
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
06H
00H
00H
00H
00H
00H