lc7874e Sanyo Semiconductor Corporation, lc7874e Datasheet - Page 21

• Manufacturer Part Number: lc7874e
• Description: Cd Graphics Decorder
• Manufacturer: Sanyo Semiconductor Corporation

12. Control item code C0
13. Control item code 01
14. Control item code 11
Default: MSB [00000000] LSB
Data 0: SCH0 Left scroll amount (font unit) setting (scroll amount: 0 to 49-font units)
Data 1: SCH1 Screen display position scrolled horizontally in 1-font unit
Data 2: SCH2 (1-font unit: 6 horizontal dots)
Data 3: SCH3
Data 4: SCH4
Data 5: SCH5
Data 6, data 7: Fixed at 0
Transfer format
Transfer format
MSB [PF1, PF0, QF1, QF0, DKMD, VBLK, EXEC, OE] :LSB
Data 0: OE 1 when the next 18 bytes are guaranteed and are the first data to be read.
Data 1: EXEC Command status
Data 2: VBLK 1 output during vertical blanking (vertical retrace line) period
Data 3: DKMD Disk identification flag
Address: F4
Control item: 01
sym0 to sym19: R to W = subcode input
Executed on fall
Address: F5
Data (check flags)
* Note: Reading must be completed within 1.1 ms after OE output setting.
0: Command executing
1: Command wait state
Vertical retrace line period
0: CD
1: CD-G
HEX
HEX
HEX
HEX
HEX
HEX
: 19-byte command input (MGC write)
: 19-byte command input (pack data read)
: Superimposed text scroll amount, horizontal setting
NTSC: 19H
PAL: 25H
LC7874E
No. 5521-21/22