參數(shù)資料
型號: M37150MF-XXXFP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.95 MHz, MICROCONTROLLER, PDSO42
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù): 94/142頁
文件大?。?/td> 1712K
代理商: M37150MF-XXXFP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37150M6/M8/MA/MC/MF-XXXFP, M37150EFFP
MITSUBISHI MICROCOMPUTERS
54
Rev. 1.0
8.10.5 Timing Signal Generating Circuit
This circuit generates a reference clock which is 832 times as large
as the horizontal synchronous signal frequency. It also generates
various timing signals on the basis of the reference clock, horizontal
synchronous signal and vertical synchronizing signal. The circuit
operates by setting bit 0 of data slicer control register 1 (address
00E016) to “1.”
The reference clock can be used as a display clock for the OSD
function in addition to the data slicer. The HSYNC signal can be used
as a count source instead of the composite sync signal. However,
when the HSYNC signal is selected, the data slicer cannot be used. A
count source of the reference clock can be selected by bit 2 of data
slicer control register 1 (address 00E016).
For pins HLF, connect a resistor and a capacitor as shown in Figure
8.10.1. Make the length of wiring which is connected to these pins as
short as possible to prevent a leakage current from being generated.
Note: It takes a few tens of milliseconds until the reference clock becomes
stable after the data slicer and the timing signal generating circuit are
started. In this period, various timing signals, Hsep signals and Vsep sig-
nals become unstable. For this reason, take stabilization time into con-
sideration when programming.
Fig. 8.10.7 Determination of V-pulse Waveform
Composite
sync signal
AB
0
1
Bit 5 of
DSC2
相關PDF資料
PDF描述
M37150MC-XXXFP 8-BIT, MROM, 8.95 MHz, MICROCONTROLLER, PDSO42
M37151MC-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M37151MF-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M37151M6-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
M37151M8-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
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