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參數資料
型號: MC68HC705BD3
廠商: Motorola, Inc.
英文描述: 8-Bit Microcontroller Units (MCU).(8位微控制器)
中文描述: 8位微控制器單元(MCU)。(8位微控制器)
文件頁數: 62/112頁
文件大?。?/td> 676K
代理商: MC68HC705BD3
MOTOROLA
8-2
MC68HC05BD3
SYNC SIGNAL PROCESSOR
8
8.1.1.1
Separate Vertical Sync Input
To test the polarity of the input sync signal, the duration of the low pulse is examined. If the low
period is longer than a specific value (512
μ
s or 1024t
CYC
), as in the case of positive polarity input
sync, the input sync will be inverted before output. For negative polarity input sync signal, it is
anticipated that the duration of the low pulse would be shorter than the specific value, and the input
sync signal passes through to the output without inversion.
This polarity correction is a continuous process, and the error margin is equal to the maximum
permissible sync pulse width specified (512
μ
s or 1024t
CYC
). At power-up or system reset,
negative polarity at input is assumed.
Figure 8-1
Sync Signal Processor Block Diagram
SYNC
DETECTOR
V FREQ.
REGISTER
VSYNC
COUNTER
VSYNC
RESHAPER
SYNC
DETECTOR
POLARITY
CORRECTOR
SYNC SIGNAL
CONTROL REG.
HSYNC
COUNTER
LINE FREQ.
REGISTERS
INTERRUPT
CIRCUIT
COMPOSITE
POLARITY
CORRECTOR
SYNC
SEPARATOR
& INSERTION
R
R
S
CLK GEN.
MUX
MUX
MUX
H
FREE
V
FREE
VSYNC
HSYNC
VTTL
HTTL
HDET
VDET
SOUT
VSIN
FOUT
INTERRUPT
$11
$0D
$0E
V
H
$0F
$10
TPG
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相關代理商/技術參數
參數描述
MC68HC705BD3P 制造商:Motorola 功能描述:MOTOROLA NXC4C
MC68HC705BD7P1 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705C4ACP 制造商:Freescale Semiconductor 功能描述:
MC68HC705C8AB 功能描述:IC MCU 8K OTP 2.1MHZ 42-SDIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 標準包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN,SCI,SPI 外圍設備:POR,PWM,溫度傳感器,WDT 輸入/輸出數:21 程序存儲器容量:40KB(20K x 16) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數據轉換器:A/D 6x12b 振蕩器型:內部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HC705C8ACB 制造商:Rochester Electronics LLC 功能描述:HCO5 CORE + 8K RAM + EPR - Bulk
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