m37280eksp Mitsumi Electronics, Corp., m37280eksp Datasheet - Page 103

• Manufacturer Part Number: m37280eksp
• Description: Single-chip 8-bit Cmos Microcomputer With Closed Caption Decoder And On-screen Display Controller
• Manufacturer: Mitsumi Electronics, Corp.

Rev. 1.0
12.11.13 Scan Mode
This microcomputer has the bi-scan mode for corresponding to H
of double speed frequency. In the bi-scan mode, the vertical start
display position and the vertical size is two times as compared with
the normal scan mode. The scan mode is selected by bit 1 of the
OSD control register 1 (refer to Figure 12.11.3).
Table 12.11.8 Setting for Scan Mode
Parameter
Bit 1 of OSD Control Register 1
Vertical Display Start Position
Vertical Dot Size
Scan Mode
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
Value of vertical position register
M37280MF–XXXSP, M37280MK–XXXSP
SYNC
Normal Scan
1TC
1TC
2TC
3TC
0
1/2H
1H
2H
3H
1H
and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
Value of vertical position register
M37280EKSP
1TC
1TC
2TC
3TC
Bi-Scan
1
1H
2H
4H
6H
2H
103