M37280MF Datasheet, PDF (164/178 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

PRELIMINARY _{NSootimcee: pTahrisamisennotitcalimfinitasl} ^{aspreecsiufibcjaetciotnto. change.}
MITSUBISHI MICROCOMPUTERS
M37280MF–XXXSP, M37280MK–XXXSP
M37280EKSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Address 021516
OSD Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
OSD control register 2 (OC2) [Address 021516]
B
Name
Functions
At reset R W
0, 1 Display layer
selection bits
(OC20, OC21)
b1 b0
Layer 1 Layer 2 ₀
0 0 CC, OSD, CDOSD
0 1 CC, OSD
CDOSD
1 0 CC, CDOSD
OSD
1 1 CC
CDOSD
OSD
2 R, G, B signal output 0: Digital output
(See note) 0
selection bit(OC22) 1: Analog output (4 gradations)
RW
RW
3 Solid space output bit 0: OUT1 output
(OC23)
1: OUT2 output
0 RW
4 ^Horizotal
0: OFF
window/blank coutrol _{1: ON}
bit (OC24)
5 Window/blank
0: Horizontal blank function
selection bit 1
1: Horizontal window function
(horizontal) (OC25)
6 Window/blank
selection bit 2
(vertical) (OC26)
0: Vertical blank function
1: Vertical window function
7 OSD interrupt
0: At completion of layer 1 block display
request selection bit 1: At completion of layer 2 block display
(OC27)
0 RW
0 RW
0 RW
0 RW
Note: When setting bit 1 of the OSD port control register to “1,” the value which is
converted from the 4-adjustment-level analog to the 2-bit digital is output
regardless of this bit value as follows : the high-order bit (R1, G1 and B1) is
output from pins P52, P53 and P54, and the low-order bit is (R0, G0 and B0)
output from pins P17, P15 and P16. And besides, when not using OSD
function, the low-power dissipation can realize by setting this bit to “0.”
Rev. 1.0
164