參數(shù)資料
型號: M37281MAH-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP52
封裝: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-52
文件頁數(shù): 146/172頁
文件大?。?/td> 1319K
代理商: M37281MAH-XXXSP
Rev.1.01
2003.07.16
page 75 of 170
M37281MAH–XXXSP,M37281MFH–XXXSP,M37281MKH–XXXSP, M37281EKSP
The display start position in the vertical direction is determined by
counting the horizontal sync signal (HSYNC). At this time, when VSYNC
and HSYNC are positive polarity (negative polarity), it starts to count
the rising edge (falling edge) of HSYNC signal from after fixed 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 select with the
I/O polarity control register (address 021716).
Fig. 8.11.9 Supplement Explanation for Display Position
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)
(Note 2)
Not count
12345
Notes 1 : The vertical position is determined by counting falling edge of
HSYNC signal after rising edge of VSYNC control signal in the
microcomputer.
2: Do not generate falling edge of HSYNC signal near rising edge
of VSYNC control signal in microcomputer to avoid jitter.
3: The pulse width of VSYNC and HSYNC needs 8 machine cycles
or more.
8 machine cycles or more
8 machine cycles
or more
HSYNC
signal input
Period of counting
HSYNC signal
相關PDF資料
PDF描述
M37281EKSP 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP52
M37281MFH-XXXSP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP52
M37281MAH-XXXSP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP52
M37281MKH-XXXSP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP52
M37281MAH-XXXSP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP52
相關代理商/技術參數(shù)
參數(shù)描述
M37281MFH-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
M37281MKH-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
M372899234 制造商:ITW Switches 功能描述:IN-RUSH
M372F3200DJ3-C 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:32M x 72 DRAM DIMM with ECC Using 16Mx4, 4K & 8K Refresh, 3.3V
M372F3280DJ3-C 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:32M x 72 DRAM DIMM with ECC Using 16Mx4, 4K & 8K Refresh, 3.3V