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M37274EFSP bảng dữ liệu(PDF) 48 Page - Renesas Technology Corp

tên linh kiện M37274EFSP
Giải thích chi tiết về linh kiện  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
PDF  148 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M37274EFSP bảng dữ liệu(HTML) 48 Page - Renesas Technology Corp

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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37274EFSP
PRELIMINARY
Notice:
This
is not
a final
specification.
Some
paramentic
limits
are
subject
to change.
MITSUBISHI MICROCOMPUTERS
(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 00E216; refer to Figure 43). The
window ends according to the contents of the setting of the start bit
position register (refer to Figure 40).
Fig. 43. Window Register
b7 b6 b5 b4 b3 b2 b1 b0
Window register (WN) [Address 00E2 16]
Window Register
0
to
5
0R W
0R W
Window start time
(WN0 to WN5)
6, 7 Fix these bits to “0.”
B
After reset
Functions
Name
RW
Time from a falling of the horizontal
synchronous signal to start of the
window =
4 ! set value (“0016” to “3F16”) !
reference clock period
00



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