參數(shù)資料
型號: LC74794M
元件分類: 畫面疊加
英文描述: ON-SCREEN DISPLAY IC, PDSO30
封裝: MFP30S
文件頁數(shù): 15/30頁
文件大?。?/td> 320K
代理商: LC74794M
No. 5557-22/30
LC74794, 74794M
COMMAND14 (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—
0
2—
1
Extended command 7 identification code
1—
1
0—
1
Command 7 identification code
Display control setup
Second byte
DA
Register
Contents
Notes
0 to 7
State
Function
7—
0
Second byte identification bit
6—
0
5—
0
4
HBS2
0
Discrimination mode 1
Clock line
1
Discrimination mode 2
3
HBS1
0
Discrimination mode 1
Framing code
1
Discrimination mode 2
0
Error checking enabled (Error checking can be turned on or off on a per-byte
2
BMS
basis.)
1
Error checking disabled (Applications can select whether to hold or write
data with errors on a per-byte basis.)
1
EMS
0
Data hold
1
Data write (In VPS mode, the error bit is set to 0.)
Error checking turned on for data unused bytes.
0
VPS: bytes 3, 4, and 6 to 10. PDCC (8/30/2): bytes 7 to 12. Header 1: bytes
14 to 37. Header 2: bytes 14 to 29, Header 3: bytes 14 to 21. Status 1 (3):
0
DCE
bytes 7 to 25. Status 2 (4): bytes 7 to 35.
Error checking turned off for data unused bytes.
1
VPS: bytes 3, 4, and 6 to 10. PDCC (8/30/2): bytes 7 to 12. Header 1: bytes
14 to 37. Header 2: bytes 14 to 29, Header 3: bytes 14 to 21. Status 1 (3):
bytes 7 to 25. Status 2 (4): bytes 7 to 35.
Note: All registers are set to 0 when the LC74794/M is reset by the RST pin.
When 0, bytes for which error checking is
specified and that have no errors are written to
regardless of errors.
The handling of bytes for which error checking
is turned off when error checking is enabled.
Error checking specification for bytes whose
data is unused.
Bi-phase (VPS), Hamming (PDC), or odd
parity (header)
相關(guān)PDF資料
PDF描述
LC74794 ON-SCREEN DISPLAY IC, PDIP30
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