lc74775 Sanyo Semiconductor Corporation, lc74775 Datasheet - Page 27

• Manufacturer Part Number: lc74775
• Description: Vps/pdc Video On-screen Display
• Manufacturer: Sanyo Semiconductor Corporation

COMMAND17 (VPS/PDC control setup command) I
• First byte
• Second byte
Note: All registers are set to 0 when the LC74775/M is reset by the RST pin.
DA 0 to 7
DA 0 to 7
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Register
Register
ECP25
ECP24
ECP23
ECP22
ECP21
ECP20
–
–
–
–
–
–
–
–
–
–
State
State
1
1
1
1
1
0
0
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
Second byte identification bit
Byte 25 Hamming error check on (Data hold)
Byte 25 Hamming error check off (Data write)
Byte 24 Hamming error check on (Data hold)
Byte 24 Hamming error check off (Data write)
Byte 23 Hamming error check on (Data hold)
Byte 23 Hamming error check off (Data write)
Byte 22 Hamming error check on (Data hold)
{Bytes , , , , 35, 45, 35, and 45}
Byte 22 Hamming error check off (Data write)
{Bytes , , , , 35, 45, 35, and 45}
Byte 21 Hamming error check on (Data hold)
{Bytes , , , , 34, 44, 34, and 44}
Byte 21 Hamming error check off (Data write)
{Bytes , , , , 34, 44, 34, and 44}
Byte 20 Hamming error check on (Data hold)
{Bytes 45, 29, 37, 21, 33, 43, 33, and 43}
Byte 20 Hamming error check off (Data write)
{Bytes 45, 29, 37, 21, 33, 43, 33, and 43}
Command 7 identification code.
Display control setup.
Extended command 9 identification code
LC74775, 74775M
2
Contents
Contents
Function
Function
C bus only
Specification when the PDC data BMS bit is 0.
The item in parentheses is the specification
when the BMS bit is 1.
The item in curly braces lists the odd parity
check on/off bytes for header modes 1, 2, 3,
and 4 and status mode 1, 2, 3, and 4.
Notes
Notes
No. 5919-27/35