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Data Sheet S15726EJ2V0DS
61
μ
PD161401
5.9 Reset
When the reset command is input, the IC is initialized to the default status shown in the table below. Note that
initialization by using the /DISP pin should be used only to prevent malfunctioning due to noise.
Table 5
32. Default Values of Registers (1/2)
Register
Reset Command
/DISP
Control register 1
R0
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
×
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
Ο
×
Ο
Ο
Ο
×
Ο
Ο
Ο
Ο
(DISP, TRON flag only)
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Control register 2
R1
X address register
R4
Y address register
MIN.
X address register
MAX.
X address register
MIN.
Y address register
MIN.
Y address register
Display memory access register
R5
R7
R8
R9
R10
R12
Main duty setting register
R14
Main duty N-line inversion register
R15
Main duty M-line shift register
R16
Sub-duty setting register
R17
Sub-duty N-line inversion register
R18
Sub-duty M-line shift register
R19
COM scanning address setting register
R21
Sub-duty start address register
R22
Scroll fixed area position register
R23
Scroll fixed area width register
R27
Scroll steps number register
R31
Blinking/reverse setting register
R37
Complementary color blink X address register
R38
Complementary color blink start line address register
R39
Complementary color blink end line address register
R40
Complementary color blink data memory register
R41
Specified color blink X address register
Specified color blink start line address register
R42
R43
Specified color blink end line address register
R44
Specified color blink data memory register
R45
Specified color setting register
R46
Reverse X address register
R47
Reverse start line address register
R48
Remark
O: Default value is input. X: Default value is not input.
Cautions 1.
When initialization is made using the /DISP pin, the contents of memory are not guaranteed.
In this case, use the initialized RAM. When initialization is made via the reset command, the
contents of memory are retained.
2. If the device is initialized by the /DISP pin while the serial interface is being used, the serial clock
counter is initialized.
3. Always input the reset command as the first command after power application.