PT6314 Datasheet, PDF (23/49 Pages) Texas Instruments – 3 Amp Adjustable Positive Step-down Integrated Switching Regulators

Dot Character VFD Controller/Driver IC
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PT6314
INSTRUCTIONS
Instruction RS R/
W
Clear
Display
00
DB DB6 DB5 DB
7
4
0
0
0
0
DB DB2
3
00
Cursor
Home
00
0
0
0
0
0
0
Entry Mode
Set
0
0
0
0
Display
ON/Off
0
Cursor or
Display Shift
0
Function Set 0
CGRAM
Address Set
0
DDRAM
Address Set
0
Read Busy
Flag &
0
Address
Write Data to
CGRAM or 1
DDRAM
Read Data to
CGRAM or 1
DDRAM
000
000
000
001
01
1
BF-
=”0”
0
1
0 00 1
001D
0 1 SC R/L
1 DL N X
ACG
ADD
ACC
Write Data
Read DR Data
DB1
0
1
1/D
C
X
BR1
DB0
1
X
S
B
X
BR0
Description
Clear all display, and sets DDRAM
address at 00H
Set DDRAM address at 00H. Also
returns the display being shifted to the
original position. DDRAM contents
remain unchanged.
Sets the cursor direction and specifies
display shift. These operations are
performed during the writing/reading
of data.
Sets all display on/off (D)
Cursor on/off (C).
Cursor blinks on character position (B)
Shifts display or cursor, also keeps
DDRAM contents.
Sets data length (in parallel data
transfer) and number of line.
Sets address of CGRAM. After which
CGRAM data is transferred.
Sets DDRAM address, after which
DDRAM data is transferred.
Reads busy flag (BF) and address
counter. BF=”0”
Writes data into the CGRAM or
DDRAM.
Reads data from CGRAM or DDRAM
Notes:
1. I/D=“1”: Increment
I/D=“0”: Decrement
2. S=”1”: Display Shift Enabled S=“0”: Cursor Shift Enabled
3. D, C, B=“1”: Turn On
D, C, B=“0”: Turn OFF
4. S/C=“1”: Display Shift
S/C=”0”: Cursor Shift
5. R/L=“1”: Shift to the Right
R/L=“0”: Shift to the Left
6. DL=“1”: 8 Bits
DL=“0”: 4 Bits
7. N=“0”: 1-Line Display
N=“1”: 2-Line Display
8. BR1, BR0=“00”: 100%
BR1, BR0=”10”: 50%
BR1, BR0=”01”: 75%
BR1, BR0=“11”: 25%
9. X=Irrelevant
10. DDRAM: Display Data RAM
11. CGRAM: Character Generator RAM
12. ACG: CGRAM Address
13. ADD: DDRAM Address
14. ACC: Address Counter
PT6314 V1.3
- 23 -
March, 2006