sc16311 Silan, sc16311 Datasheet - Page 6

• Manufacturer Part Number: sc16311
• Description: Vfd Controller/driver
• Manufacturer: Silan

significant bit.
b0) is read.
LED Port
of this port is 0, the corresponding LED lights; when the bit is 1, the LED goes off. The data of bits 6 through 8 is
ignored.
SW data
are 0.
Command
command.
command/data being transmitted is invalid (however, the command/data already transmitted remains valid).
(1) Display mode setting command
duty, 12 segments to 20 segments).
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The data of each key is stored as illustrated below, and is read by a read command, starting from the least
When the most significant bit of data (Seg12 b7) has been read, the least significant bit of the next data (Seg1
Data is written to the LED port by a write command, starting from the least significant bit of the port. When a bit
On power application, all the LEDs remain dark.
The SW data is read by a read command, starting from the least significant bit. Bits 5 through 8 of the SW data
A command sets the display mode and status of the FIP driver.
The first 1 byte input to theSC16311 through the DIN pin after the STB pin has fallen is regarded as a
If STB is made high while a command/data is transmitted, serial communication is initialized, and the
This command initializes theSC16311 and selects the number of segments and number of grids (1/8 to 1/16
When this command is executed, display is forcibly turned off, and key scanning is also stopped. To resume
MSB
MSB
Don't care
-
0
-
0
KEY1...KEY4
-
b0
Seg11/KS11 Seg12/KS12
Seg1/KS1
Seg3/KS3
Seg5/KS5
Seg7/KS7
Seg9/KS9
0
b4 b3 b2 b1
0
b3
b3 b2
Seg10/KS10
b4
KEY1...KEY4
Seg2/KS2
Seg4/KS4
Seg6/KS6
Seg8/KS8
b0
b1 b0
LSB
b7
LED2
LED3
LED4
LED5
Reading sequence
LED1
LSB
SW1
SW2
SW3
SW4
REV:1.0
SC16311
Page 6 of 11
2004.08.03