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參數(shù)資料
| 型號： | M37270 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| 中文描述： | 單芯片8位CMOS微機隱蔽字幕解碼器和屏幕顯示控制器 |
| 文件頁數(shù)： | 32/94頁 |
| 文件大?。?/td> | 1551K |
| 代理商： | M37270 |
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MITSUBISHI MICROCOMPUTERS
M37270MF-XXXSP
M37270EF-XXXSP, M37270EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
32
After a falling of the clock run-in pulse set in bits 2 to 0 of clock run-
in detect register 2 (address 00E9
16
) is detected, a start bit is
detected by sampling a comparator output. A sampling clock for
sampling is obtained by dividing the reference clock generated in
the timing signal generating circuit by 13.
Figure 28 shows the structure of clock run-in detect register 2.
The contents of bits 2 to 0 of clock run-in detect register 2 and bit
1 of clock run-in register 2 are written at a falling of the horizontal
synchronizing signal. For this reason, even if an instruction for
setting is executed, the contents of the register cannot be rewritten
until a falling of the horizontal synchronizing signal.
Fig. 27. Structure of clock run-in register 2
(8) Clock run-in determination circuit
This circuit sets a window in the clock run-in portion in the composite
video signal, and then determinates clock run-in by counting the
number of pulses in this window. Set the time from a falling of the
horizontal synchronizing signal to a start of the window by bits 0 to 5
of the window register (address 00E2
16
; refer to Figure 29). The
window ends according to the contents of the setting of the start bit
position register (refer to Figure 26).
Fig. 29. Structure of window register
7
0
1
Start bit detecting method
selection bit
0 : Method 1
1 : Method 2
Clock run-in register 2
(CR2 : address 00E7
16
)
Fix this bit to “1”
Fix these bits to “100111
2
”
0 0
1
1 1
1
Fig. 28. Structure of clock run-in detect register 2
7
0 0
0
Window start time
Time from a falling of the
horizontal synchronizing signal
to a start of the window = 4
set
value (“00
16
” to “3F
16
”)
reference
clock period
Window register
(WN : address 00E2
16
)
Fix these bits to “0”
7
0
Clock run-in pulses for sampling
b2 b1 b0
0 0 0 : Not available
0 0 1 : 1st pulse
0 1 0 : 2nd pulse
0 1 1 : 3rd pulse
1 0 0 : 4th pulse
1 0 1 : 5th pulse
1 1 0 : 6th pulse
1 1 1 : 7th pulse
Clock run-in detect register 2
(CRD2 : address 00E9
16
)
Data clock generating time
Time from detection of a start bit
to occurrence of a data clock
= (13 + set value)
reference
clock period
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37270EF | Single Chip 8 Bits Microcomputer(8位單片機) |
| M37270EFSP | Single Chip 8 Bits Microcomputer(8位單片機) |
| M37270MF | Single Chip 8 Bits Microcomputer(8位單片機) |
| M37270MF-100SP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37270MF-101SP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37270EF | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37270EFSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37270EFSS | 功能描述:EPROM MCU/8BIT CMOS EMULATION CH RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:適配器板 適用于相關(guān)產(chǎn)品:RCB230，RCB231，RCB212 配用:26790D-ND - RCB BREAKOUT BOARD RS232 CABLE |
| M37270EF-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER |
| M37270ERSS | 功能描述:EMULATION MCU/8BIT CMOS EMULATIO RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 配件 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關(guān)產(chǎn)品:1-Wire? 設(shè)備 產(chǎn)品目錄頁面:1429 (CN2011-ZH PDF) |
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