- 您现在的位置：买卖IC网 > PDF目录169782 > COP8SGE744V8XXX (NATIONAL SEMICONDUCTOR CORP) 8-BIT, OTPROM, 15 MHz, MICROCONTROLLER, PQCC44 PDF资料下载
参数资料
| 型号： | COP8SGE744V8XXX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 15 MHz, MICROCONTROLLER, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 39/62页 |
| 文件大小： | 840K |
| 代理商： | COP8SGE744V8XXX |
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页当前第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
12.0 MICROWIRE/PLUS (Continued)
12.1.2 MICROWIRE/PLUS Slave Mode Operation
In the MICROWIRE/PLUS Slave mode of operation the SK
clock is generated by an external source. Setting the MSEL
bit in the CNTRL register enables the SO and SK functions
onto the G Port. The SK pin must be selected as an input
and the SO pin is selected as an output pin by setting and
resetting the appropriate bits in the Port G configuration
register.
Table 11 summarizes the settings required to enter
the Slave mode of operation.
TABLE 11. MICROWIRE/PLUS Mode Settings
This table assumes that the control flag MSEL is set.
G4 (SO)
G5 (SK)
G4
G5
Operation
Config. Bit
Fun.
1
SO
Int.
MICROWIRE/PLUS
SK
Master
0
1
TRI-
Int.
MICROWIRE/PLUS
STATE
SK
Master
1
0
SO
Ext.
MICROWIRE/PLUS
SK
Slave
0
TRI-
Ext.
MICROWIRE/PLUS
STATE
SK
Slave
The user must set the BUSY flag immediately upon entering
the Slave mode. This ensures that all data bits sent by the
Master is shifted properly. After eight clock pulses the BUSY
flag is clear, the shift clock is stopped, and the sequence
may be repeated.
12.1.3 Alternate SK Phase Operation and SK Idle
Polarity
The device allows either the normal SK clock or an alternate
phase SK clock to shift data in and out of the SIO register. In
both the modes the SK idle polarity can be either high or low.
The polarity is selected by bit 5 of Port G data register. In the
normal mode data is shifted in on the rising edge of the SK
clock and the data is shifted out on the falling edge of the SK
clock. In the alternate SK phase operation, data is shifted in
on the falling edge of the SK clock and shifted out on the
rising edge of the SK clock. Bit 6 of Port G configuration
register selects the SK edge.
A control flag, SKSEL, allows either the normal SK clock or
the alternate SK clock to be selected. Resetting SKSEL
causes the MICROWIRE/PLUS logic to be clocked from the
normal SK signal. Setting the SKSEL flag selects the alter-
nate SK clock. The SKSEL is mapped into the G6 configu-
ration bit. The SKSEL flag will power up in the reset condi-
tion, selecting the normal SK signal.
TABLE 12. MICROWIRE/PLUS Shift Clock Polarity and Sample/Shift Phase
Port G
SK Phase
G6 (SKSEL)
Config. Bit
G5 Data
Bit
SO Clocked Out
On:
SI Sampled On:
SK Idle
Phase
Normal
0
SK Falling Edge
SK Rising Edge
Low
Alternate
1
0
SK Rising Edge
SK Falling Edge
Low
Alternate
0
1
SK Rising Edge
SK Falling Edge
High
Normal
1
SK Falling Edge
SK Rising Edge
High
DS101317-33
FIGURE 30. MICROWIRE/PLUS SPI Mode Interface Timing, Normal SK Mode, SK Idle Phase being Low
DS101317-34
FIGURE 31. MICROWIRE/PLUS SPI Mode Interface Timing, Alternate SK Mode, SK Idle Phase being Low
COP8SG
Family
www.national.com
44
相关PDF资料 |
PDF描述 |
|---|---|
| COP8SGE744V7XXX | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQCC44 |
| COP8SGR740N7XXX | 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PDIP40 |
| CP-1094-AST | PANEL MOUNT, CABLE TERMINATED, FEMALE, BNC CONNECTOR, SOLDER, RECEPTACLE |
| CP-1094-U | PANEL MOUNT, CABLE TERMINATED, FEMALE, BNC CONNECTOR, SOLDER, RECEPTACLE |
| CP-AD519 | PANEL MOUNT, CABLE TERMINATED, FEMALE, BNC CONNECTOR, SOLDER, RECEPTACLE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| COP8SGE7HLQ8 | 功能描述:IC MCU OTP 8BIT 8K 2-COMP 44LLP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:COP8™ 8SG 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| COP8SGE7VEJ7 | 制造商:Texas Instruments 功能描述: |
| COP8SGE7VEJ8 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| COP8SGE7VEJ8/NOPB | 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| COP8SG-EPU | 功能描述:开发板和工具包 - 其他处理器 COP8SG EVAL/PROGAM UNIT RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压: |
发布紧急采购，3分钟左右您将得到回复。