參數(shù)資料
型號： ENC424J600-I/PT
廠商： Microchip Technology
文件頁數(shù)： 70/168頁
文件大?。?/td> 0K
描述： IC ETHERNET CTRLR W/SPI 44-TQFP
視頻文件： Fast 100 Mbps Ethernet PICtail Plus Overview
標準包裝： 160
控制器類型： 以太網(wǎng)控制器（IEEE 802.3）
接口： SPI
電源電壓： 3 V ~ 3.6 V
電流 - 電源： 96mA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 44-TQFP
供應(yīng)商設(shè)備封裝： 44-TQFP（10x10）
包裝： 托盤
產(chǎn)品目錄頁面： 684 (CN2011-ZH PDF)
配用： AC164132-ND - BOARD DAUGHTER PICTAIL ETHERNET
2007 Microchip Technology Inc.
DS39599G-page 159
PIC18F2220/2320/4220/4320
17.3.3
ENABLING SPI I/O
To enable the serial port, MSSP Enable bit, SSPEN
(SSPCON1<5>), must be set. To reset or reconfigure
SPI mode, clear the SSPEN bit, re-initialize the
SSPCON registers and then set the SSPEN bit. This
configures the SDI, SDO, SCK and SS pins as serial
port pins. For the pins to behave as the serial port func-
tion, some must have their data direction bits (in the
TRIS register) appropriately programmed. That is:
SDI must have TRISC<4> bit cleared
SDO must have TRISC<5> bit cleared
SCK (Master mode) must have TRISC<3> bit
cleared
SCK (Slave mode) must have TRISC<3> bit set
SS must have TRISA<5> bit set
Any serial port function that is not desired may be over-
ridden by programming the corresponding data
direction (TRIS) register to the opposite value.
17.3.4
TYPICAL CONNECTION
Register 17-2 shows a typical connection between two
microcontrollers. The master controller (Processor 1)
initiates the data transfer by sending the SCK signal.
Data is shifted out of both shift registers on their pro-
grammed clock edge and latched on the opposite edge
of the clock. Both processors should be programmed to
the same Clock Polarity (CKP), then both controllers
would send and receive data at the same time.
Whether the data is meaningful (or dummy data)
depends on the application software. This leads to
three scenarios for data transmission:
Master sends data – Slave sends dummy data
Master sends data – Slave sends data
Master sends dummy data – Slave sends data
FIGURE 17-2:
SPI MASTER/SLAVE CONNECTION
Serial Input Buffer
(SSPBUF)
Shift Register
(SSPSR)
MSb
LSb
SDO
SDI
PROCESSOR 1
SCK
SPI Master SSPM3:SSPM0 = 00xxb
Serial Input Buffer
(SSPBUF)
Shift Register
(SSPSR)
LSb
MSb
SDI
SDO
PROCESSOR 2
SCK
SPI Slave SSPM3:SSPM0 = 010xb
Serial Clock
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參數(shù)描述
ENC424J600T-I/ML 功能描述:以太網(wǎng) IC 10/100 Base-T Stand alone Ethernet Ctrlr RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
ENC424J600T-I/PT 功能描述:外圍驅(qū)動器與原件 - PCI 10/100 Base-T Stand alone Ethernet Ctrlr RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
ENC424J600T-IML 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Stand-Alone 10/100 Ethernet Controller with SPI or Parallel Interface
ENC424J600T-IPT 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Stand-Alone 10/100 Ethernet Controller with SPI or Parallel Interface
ENC431D05A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
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