
No. 5557-24/30
LC74794, 74794M
COMMAND16 (VPS/PDC control setup command)
First byte
DA
Register
Contents
Notes
0 to 7
State
Function
7—
1
6—
1
5—
1
4—
1
3—
1
2—
0
Extended command 9 identification code
1—
0
0—
1
Command 7 identification code
Display control setup
Second byte
Note: All registers are set to 0 when the LC74794/M is reset by the RST pin.
DA
Register
Contents
Notes
0 to 7
State
Function
7—
0
Second byte identification bit
0
Byte 19 Hamming error check on (data held)
6
ECP19
{Byte 44, 28, 36, 20, 32, 42, 32, and 42}
1
Byte 19 Hamming error check off (data written)
{Byte 44, 28, 36, 20, 32, 42, 32, and 42}
0
Byte 18 Hamming error check on (data held)
5
ECP18
{Byte 43, 27, 35, 19, 31, 41, 31, and 41}
1
Byte 18 Hamming error check off (data written)
{Byte 43, 27, 35, 19, 31, 41, 31, and 41}
0
Byte 17 Hamming error check on (data held)
4
ECP17
{Byte 42, 26, 34, 18, 30, 40, 30, and 40}
1
Byte 17 Hamming error check off (data written)
{Byte 42, 26, 34, 18, 30, 40, 30, and 40}
0
Byte 16 Hamming error check on (data held)
3
ECP16
{Byte 41, 25, 33, 17, 29, 39, 29, and 39}
1
Byte 16 Hamming error check off (data written)
{Byte 41, 25, 33, 17, 29, 39, 29, and 39}
0
Byte 15 Hamming error check on (data held)
2
ECP15
{Byte 40, 24, 32, 16, 28, 38, 28, and 38}
1
Byte 15 Hamming error check off (data written)
{Byte 40, 24, 32, 16, 28, 38, 28, and 38}
0
Byte 14 Hamming error check on (data held)
1
ECP14
{Byte 39, 23, 31, 15, 27, 37, 27, and 37}
1
Byte 14 Hamming error check off (data written)
{Byte 39, 23, 31, 15, 27, 37, 27, and 37}
0
Byte 13 Hamming error check on (data held)
0
ECP13
{Byte 38, 22, 30, 14, 26, 36, 26, and 36}
1
Byte 13 Hamming error check off (data written)
{Byte 38, 22, 30, 14, 26, 36, 26, and 36}
Settings when the PDC data (8/30/2) BMS = 0.
Settings in parentheses apply when BMS = 1.
The items in curly brackets are the bytes for which the
odd parity check is turned on and off in header modes
1, 2, 3, and 4 and status modes 1, 2, 3, and 4,
respectively.