PT6314-001L PTC [Princeton Technology Corp], PT6314-001L Datasheet - Page 22

• Manufacturer Part Number: PT6314-001L
• Description: Dot Character VFD Controller/Driver IC
• Manufacturer: PTC [Princeton Technology Corp]

Dot Character VFD Controller/Driver IC
SERIAL DATA TRANSFER
PT6314 supports serial data transfer mode. When data is written, it can be inputted when the Strobe
goes to “0”. The first byte -- Start Byte consists of a total of 8 bits : the Synchronous bits (bit 1 - bit 5),
R/W (bit 6), RS (bit 7) and bit 8. The register will be selected (IR or DR) by the RS (bit 7) and the data
write or read is selected by R/W (bit 6 = “0”) in this byte. The Start Byte is followed by the 8-bit
Instruction Byte. The Start Byte selects which is process is to be inputted first: read the Busy Flag +
Address Counter (AC6 to AC0) or read the data which was written in the DDRAM or CGRAM. Data is
outputted at the falling edge of the shift clock.
Data Write
Data Read
PT6314 V1.3
SI/SO
SCK
STB
SCK
STB
SI
"1"
1
"1"
1
Synchronous Bits
"1"
Synchronous Bits
2
"1"
2
"1"
3
"1"
3
Start Byte
"1"
4
Start Byte
"1"
4
"1"
5
"1"
5
R/W
6
R/W
6
RS
7
RS
7
Wait Time: tWAIT
- 22 -
"0"
8
"0"
8
1 s
µ
D7
1
9
BF
"0"
10
D6
2
IR6
11
D5
3
Instruction/Data
IR5
Read Data
12
4
D4
IR4
URL: http://www.princeton.com.tw
13
5
D3
IR3
14
6
D2
IR2
Fax: [phone]
Tel: [phone]
15
7
D1
IR1
March, 2006
8
16
PT6314
D0
IR0