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| 型号： | M37270EF-XXXSP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 8.1 MHz, MICROCONTROLLER, PDIP64 |
| 封装： | 0.750 INCH, 1.78 MM PITCH, PLASTIC, SDIP-64 |
| 文件页数： | 30/97页 |
| 文件大小： | 1359K |
| 代理商： | M37270EF-XXXSP |
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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
33
Fig. 30. Structure of clock run-in register 1
Fig. 33. Structure of clock run-in detect registers 1and 3
Fig. 32. Window setting
Fig. 31. Structure of clock run-in register 3
For the main data slice line, the count value of pulses in the window
is stored in clock run-in register 1 (address 00E616; refer to Figure
30). For the sub-data slice line, the count value of pulses in the window
is stored in clock run-in register 3 (address 020916; refer to Figure
29). When this count value is 4 to 6, it is determined as a clock run-in.
Accordingly, set the count value so that the window may start after
the first pulse of the clock run-in (refer to Figure 32).
The contents to be set in the window register 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.
For the main data slice line, reference clock is counted in the period
from a falling of the clock pulse set in bits 0 to 2 of the clock run-in
detect register 2 (address 00E916) to the next falling. The count value
is stored in bits 3 to 7 of the clock run-in detect register 1 (address
00E816) (When the count value exceeds “1F16,” “1F16” is held). For
the sub-data slice line, the count value is stored in bits 3 to 7 of the
clock run-in detect register 3 (address 020816). Read out these bits
after the occurence of a data slicer interrupt (refer to (11) Interrupt
Request Generating Circuit).
Figure 33 shows the structure of clock run-in detect registers 1 and
3.
7
Clock run-in count value of sub-data
slice line
Clock run-in register 3
(CR3 : address 020916)
Data latch completion flag for caption data in
sub-data slice line
0: Data is not latched yet
1: Data is latched
Data slice line selection bit for interrupt
request
0: Main data slice line
1: Sub-data slice line
Interrupt mode selection bit
0: Interrupt occurs at end of data slice line
1: Interrupt occurs at completion of caption
data latch
VWhen the count value
in the window is 4 to 6,
this is determined as a
clock run-in.
Horizontal
synchronizing
signal
Composite
video signal
Window
Clock run-in
Start bit data +
16-bit data
Time to be set in the
window register
Time to be set in
the start bit position
register
70
Number of reference clocks to
be counted in one clock run-in
pulse period
Clock run-in detect registers 1, 3
( CRD1 : address 00E816)
( CRD3 : address 020816)
Test bits : read-only
70
Clock run-in count value of
main-data slice line
Clock run-in register 1
(CR1 : address 00E616)
Fix these bits to “01012”
01 0
1
0
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相关代理商/技术参数 |
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| M37270ERSS | 功能描述:EMULATION MCU/8BIT CMOS EMULATIO RoHS:否 类别:编程器，开发系统 >> 配件 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 标准包装:1 系列:- 附件类型:USB 至 1-Wire? RJ11 适配器 适用于相关产品:1-Wire? 设备 产品目录页面:1429 (CN2011-ZH PDF) |
| M37270MF | 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 |
| M37270MF-100SP | 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 |
| M37270MF-101SP | 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 |
| M37270MF-103SP | 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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