参数资料
型号: M37272M6-XXXFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
封装: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件页数: 137/145页
文件大小: 1928K
代理商: M37272M6-XXXFP
88
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37272M6/M8–XXXSP/FP, M37272MA–XXXSP
M37272E8SP/FP, M37272EFSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.3
8.11.13 OSD Output Pin Control
The OSD output pins R, G, B and OUT1 can also function as ports
P52–P55. Set corresponding bit of the OSD port control register (ad-
dress 00CB16) to “0” to specify these pins as OSD output pins, or set
it to “1” to specify it as a general-purpose port P5.
The OUT2 can also function as port P10. Set bit 0 of the port P1
direction register (address 00C316) to “1” (output mode). After that,
set bit 7 of the OSD port control register to “1” to specify the pin as
OSD output pin, or set it to “0” to specify as port P10.
The input polarity of the HSYNC, VSYNC and output polarity of signals
R, G, B, OUT1 and OUT2 can be specified with the I/O polarity con-
trol register (address 00D8) . Set a bit to “0” to specify positive polar-
ity; set it to “1” to specify negative polarity (refer to Figure 8.11.13).
The structure of the OSD port control register is shown in Figure
8.11.28.
Fig. 8.11.28 OSD Port Control Register
b7b6b5b4b3b2b1b0
OSD port control register (PF) [Address 00CB16]
BName
Functions
After reset R W
OSD Port Control Register
0
2
0
30 : G signal output
1 : Port P53 output
0
Fix these bits to “0.”
R—
RW
0, 1
Port P53 output signal
selection bit (PF3)
4
0 : B signal output
1 : Port P54 output
0R W
Port P54 output signal
selection bit (PF4)
0R W
0 : R signal output
1 : Port P52 output
Port P52 output signal
selection bit (PF2)
5
0 : OUT1 signal output
1 : Port P53 output
Port P55 output signal
selection bit (PF5)
70 : Port P10 output
1 : OUT2 signal output
Port P10 output signal
selection bit (PF7)
0
Nothing is assigned. This bit is write disable bit.
When this bit is read out, the value is “0.”
R—
6
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