- 您现在的位置：买卖IC网 > PDF目录359091 > M68HC705UGANG (飞思卡尔半导体(中国)有限公司) High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit PDF资料下载
参数资料
| 型号： | M68HC705UGANG |
| 厂商： | 飞思卡尔半导体(中国)有限公司 |
| 英文描述： | High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit |
| 中文描述： | 高密度互补金属氧化物半导体（HCMOS）微控制器 |
| 文件页数： | 63/112页 |
| 文件大小： | 809K |
| 代理商： | M68HC705UGANG |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页当前第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页
MC68HC05BD3
8-3
SYNC SIGNAL PROCESSOR
8
8.1.1.2
Separate Horizontal Or Composite Sync Input
Since the input at HSYNC can be either a pure horizontal sync signal or a composite sync signal,
different methodologies are used in polarity correction.
Unlike the polarity correction for VSYNC, both the high pulse and low pulse of the sync signal at
HSYNC are examined. If the pulse, either active high or low, is longer than a certain period (8
μ
s
or 16 t
CYC
), it will be regarded as a long pulse. If there are 8 consecutive low long pulses, the input
sync signal will be confirmed as a positive polarity sync signal, and will be inverted. If there are 8
consecutive high long pulses, it will be confirmed as a negative polarity sync signal.
The operation of this module is also continuous, and the error margin is equal to the period of the
pre-set number (default is 8) of horizontal sync pulses. At power-up or system reset, negative
polarity at input is assumed.
8.1.2
Sync Detection
The sync detector determines whether the incoming sync signal is active. Both sync high and low
pulse widths must be within the specific values to be regarded as active. HDET and VDET flags
will be set if the HSYNC and VSYNC signals are active, respectively.
Figure 8-2
Sync Signal Polarity Correction
Negative polarity pure horizontal sync signal
Positive polarity pure horizontal sync signal
Negative polarity composite sync signal
Positive polarity composite sync signal
TPG
61
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相关PDF资料 |
PDF描述 |
|---|---|
| M68TC11E20B56 | HC11 Microcontrollers |
| M68Z128W-70N1T | 3V, 1 Mbit 128Kb x8 Low Power SRAM with Output Enable |
| M68Z128WN | 3V, 1 Mbit 128Kb x8 Low Power SRAM with Output Enable |
| M68Z128W | 3V, 1 Mbit 128Kb x8 Low Power SRAM with Output Enable |
| M69AW024BL60ZB8T | 16 Mbit (1M x16) 3V Asynchronous PSRAM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M68HC705UPGMR | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit |
| M68HC705X16PGMR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| M68HC711CFD | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG REGISTER PROGRAMMING FOR EEPROM-BASED MHC MICROCONTROLLERS |
| M68HC711CFG | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG REGISTER PROGRAMMING FOR EEPROM-BASED MHC MICROCONTROLLERS |
| M68HC711CFG/D | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG REGISTER PROGRAMMING FOR EEPROM-BASED MHC MICROCONTROLLERS |
发布紧急采购，3分钟左右您将得到回复。