UPD6462 NEC, UPD6462 Datasheet - Page 19

• Manufacturer Part Number: UPD6462
• Description: CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY 12 ROWS x 24 COLUMNS
• Manufacturer: NEC

2. COMMANDS
2.1 COMMAND FORMAT
byte commands consisting of eight bits including an instruction and data, 2-byte commands consisting of sixteen bits
including an instruction and data, and a 2-byte continuous command which can be input in an abbreviated format.
Commands are input with the MSB first or LSB first according to the specified mask option.
2.2 COMMANDS AND THEIR BITS
(1) For MSB first
1-byte commands
2-byte commands
2-byte continuous command
Video RAM batch clear
Character display control
Background/rim color control
3-channel independent display on/off
Character reverse on/off
Character display position control
Write address control
Output pin control
Character size control
3-channel independent background control
Test mode
Displayed character control
Control commands are serially input in 8-bit units with a variable word length. There are three types of commands: 1-
Note Not to be used
Note C7 bit is “don’t care” at the PD6462. However, this data sheet explains the PD6462 with “0” in the C7 bit.
Note
Function
Function
Function
(MSB)
(MSB)
(MSB)
D15 D14 D13 D12 D11 D10 D9
D15 D14 D13 D12 D11 D10 D9
D7
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
1
D6
0
0
0
1
0
RV
0
0
0
0
1
1
D5
R
0
0
1
1
1
0
0
1
1
1
1
G
0
1
1
1
0
0
D4
0
1
0
1
1
B
0
0
1
0
0
0
D3
D0
V4
BL
R
0
0
1
0
0
0
1
0
AR3 AR2 AR1 AR0 AC4 AC3 AC2 AC1 AC0
BA1 BA0 BFA BB1 BB0 BFB BC1 BC0 BFC
V
D8
D8
V3
T8
0
0
C2
DOA
D2
LC
G
0
0
V
Note
D7
V2
T7
D7
C7
0
C2
DOB
BL1
V
D1
D6
D6
C6
V1
T6
B
0
0
S
C1
D5
V0
T5
D5
C5
BCRE
0
0
DOC
BFC
BL0
D0
0
D4
H4
T4
D4
C4
0
0
PD6461, 6462
AR3 AR2 AR1 AR0
AR3 AR2 AR1 AR0
D3
H3
T3
D3
C3
D2
H2
T2
D2
C2
D1
H1
D1
C1
T1
D0
H0
T0
D0
C0
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