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参数资料
| 型号： | M37271EFSP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP52 |
| 封装： | 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-52 |
| 文件页数： | 52/64页 |
| 文件大小： | 1252K |
| 代理商： | M37271EFSP |
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MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
53
The display position in the vertical direction is determined by count-
ing the horizontal sync signal (HSYNC). At this time, it starts to count
the rising edge (falling edge) of HSYNC signal from after about 1 ma-
chine cycle of rising edge (falling edge) of VSYNC signal. So interval
from rising edge (falling edge) of VSYNC signal to rising edge (falling
edge) of HSYNC signal needs enough time (2 machine cycles or more)
for avoiding jitter. The polarity of HSYNC and VSYNC signals can se-
lect with the I/O polarity control register (address 021716). For de-
tails, refer to (15) OSD Output Pin Control.
Note: When bits 0 and 1 of the I/O polarity control register (address
021716) are set to “1” (negative polarity), the vertical position
is determined by counting falling edge of HSYNC signal after
rising edge of VSYNC control signal in the microcomputer (re-
fer to Figure 57).
Fig. 57. Supplement explanation for display position
The vertical position for each block can be set in 1024 steps (where
each step is 1TH (TH: HSYNC cycle)) as values “0016” to “FF16” in
vertical position register 1i (i = 1 to 16) (addresses 022016 to 022F16)
and values “0016” to “FF16” in the vertical position register 2i (i = 1 to
16) (addresses 023016 to 023F16). The structure of the vertical posi-
tion registers is shown in Figure 58.
Fig. 58. Structure of vertical position registers
The horizontal position is common to all blocks, and can be set in
256 steps (where 1 step is 4TC, TC being the oscillating cycle for
display) as values “0016” to “FF16” in bits 0 to 7 of the horizontal
position register (address 00CF16). The structure of the horizontal
position register is shown in Figure 59.
Fig. 59. Structure of horizontal position register
When bits 0 and 1 of the I/O polarity control register
(address 021716) are set to “1” (negative polarity)
VSYNC signal input
VSYNC control
signal in
microcomputer
0.25 to 0.50 [
s]
( at f(XIN) = 8MHz)
Period of counting
HSYNC signal
(Note 1)
HSYNC
signal input
Not count
12345
Notes 1 : Do not generate falling edge of H SYNC signal near rising edge of
VSYNC control signal in microcomputer to avoid jitter.
2 : The pulse width of VSYNC and HSYNC needs 8 machine cycles or
more.
70
Vertical position register 1i
(i = 1 to 16)
(VP1i : addresses 022016 to 022F16)
Control bits of vertical display
start positions (Note)
Vertical display start positions (low-order 8 bits)
TH!(setting value of low-order 2 bits of VP2i !16
+setting value of low-order 4 bits of VP1i !16
+setting value of low-order 4 bits of VP1i !16 )
Note : Set values except “00 16” and “0116” to VP1i when VP2i is “00 16.”
2
1
0
70
Vertical position register 2i
(i = 1 to 16)
(VP2i : addresses 023016 to 023F16)
Control bits of vertical display
start positions (Note)
Vertical display start positions (high-order 2 bits)
TH!(setting value of low-order 2 bits of VP2i !16
+setting value of low-order 4 bits of VP1i !16
+setting value of low-order 4 bits of VP1i !16 )
2
1
0
Note : The setting value synchronizes with a rising (falling) of the V SYNC.
70
Horizontal position register
(HP : address 00CF16)
Control bits of horizontal display
start positions
Horizontal display start positions
4TOSC!(setting value of high-order 4 bits !16
+setting value of low-order 4 bits !16 )
1
0
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PDF描述 |
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| M37271MF-XXXSP | 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP52 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37271EFSS | 功能描述:EPROM MCU/8BIT CMOS EMULATION CH RoHS:否 类别:编程器，开发系统 >> 配件 系列:- 标准包装:1 系列:- 附件类型:适配器板 适用于相关产品:RCB230，RCB231，RCB212 配用:26790D-ND - RCB BREAKOUT BOARD RS232 CABLE |
| M37271EF-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37271MF | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37271MF-213SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37271MF-219SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
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