参数资料
| 型号： | PIC12F635-I/P |
| 厂商： | Microchip Technology |
| 文件页数： | 19/74页 |
| 文件大小： | 0K |
| 描述： | IC MCU FLASH 1KX14 8DIP |
| 产品培训模块： | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 标准包装： | 60 |
| 系列： | PIC® 12F |
| 核心处理器： | PIC |
| 芯体尺寸： | 8-位 |
| 速度： | 20MHz |
| 外围设备： | 欠压检测/复位，POR，WDT |
| 输入/输出数： | 5 |
| 程序存储器容量： | 1.75KB（1K x 14） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 128 x 8 |
| RAM 容量： | 64 x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2 V ~ 5.5 V |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 包装： | 管件 |
| 产品目录页面： | 637 (CN2011-ZH PDF) |
| 配用： | DM163029-ND - BOARD PICDEM FOR MECHATRONICS AC162057-ND - MPLAB ICD 2 HEADER 14DIP ACICE0201-ND - MPLABICE 8P 300 MIL ADAPTER AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC |
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页当前第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
Micrel, Inc.
KSZ8841-PMQL
October 2007
26
M9999-100407-1.5
The following table shows the RDES1 register bit fields.
Bit
Description
31 - 26
Reserved
25
RER Receive End of Ring
When set, indicates that the descriptor list reached its final descriptor. The KSZ8841-PMQL
returns to the base address of the list, thus creating a descriptor ring.
24 - 12
Reserved
10 - 0
RBS Receive Buffer Size
Indicates the size, in bytes, of the receive data buffer. If the field is 0, the KSZ8841-PMQL
ignores this buffer and moves to the next descriptor.
The buffer size must be a multiple of 4.
The following table shows the RDES2 register bit fields.
Bit
Description
31 - 0
Buffer Address
Indicates the physical memory address of the buffer.
The buffer address must be Word aligned.
The following table shows the RDES3 register bit fields.
Bit
Description
31 - 0
Next Descriptor Address
Indicates the physical memory address of the next descriptor in the descriptor ring.
The buffer address must be Word aligned.
Transmit Descriptors (TDES0-TDES3)
Transmit descriptors must be Word aligned. Each descriptor provides one frame buffer, one byte count field, and
control and status bits.
The following table shows the TDES0 register bit fields.
Bit
Description
31
OWN Own Bit
When set, indicates that the descriptor is owned by the KSZ8841-PMQL. When cleared,
indicates that the descriptor is owned by the host. The KSZ8841-PMQL clears this bit either
when it completes the frame transmission or when the buffer allocated in the descriptor is
empty.
The ownership bit of the first descriptor of the frame should be set after all subsequent
descriptors belonging to the same frame have been set. This avoids a possible race
condition between the KSZ8841-PMQL fetching a descriptor and the driver setting an
ownership bit.
30 - 0
Reserved
The following table shows the TDES1 register bit fields.
Bit
Description
31
IC Interrupt on Completion
When set, the KSZ8841-PMQL sets transmit interrupt after the present frame has been
transmitted. It is valid only when last segment is set.
30
FS First Segment
When set, indicates that the buffer contains the first segment of a frame.
相关PDF资料 |
PDF描述 |
|---|---|
| PIC18LC858T-I/L | IC MCU OTP 16KX16 CAN 84PLCC |
| PIC16F722-I/SS | IC PIC MCU FLASH 2KX14 28-SSOP |
| PIC18C601T-I/L | IC MCU ROMLESS A/D PWM 68PLCC |
| PIC16C926T-I/L | IC MCU OTP 8KX14 LCD DVR 68PLCC |
| PIC12F683-I/SN | IC MCU FLASH 2KX14 8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PIC12F635-IS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8/14-Pin, Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology |
| PIC12F635TE/MF | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8/14-PIN FLASH-BASED, 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY |
| PIC12F635TE/MFQTP | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8/14-PIN FLASH-BASED, 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY |
| PIC12F635TE/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8/14-PIN FLASH-BASED, 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY |
| PIC12F635TE/PQTP | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8/14-PIN FLASH-BASED, 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY |
发布紧急采购，3分钟左右您将得到回复。