參數(shù)資料
型號： KSZ8895MQI
廠商： Micrel Inc
文件頁數(shù)： 14/119頁
文件大?。?/td> 0K
描述： IC ETHERNET SWITCH 5PORT 128PQFP
特色產(chǎn)品： KSZ8895MQ Ethernet Switches
標(biāo)準(zhǔn)包裝： 66
系列： *
其它名稱： 576-3997
PIC16(L)F1782/3
DS41579C-page 110
Preliminary
2011-2012 Microchip Technology Inc.
EXAMPLE 12-5:
WRITING TO FLASH PROGRAM MEMORY
; This write routine assumes the following:
; 1. The 16 bytes of data are loaded, starting at the address in DATA_ADDR
; 2. Each word of data to be written is made up of two adjacent bytes in DATA_ADDR,
;
stored in little endian format
; 3. A valid starting address (the least significant bits = 000) is loaded in ADDRH:ADDRL
; 4. ADDRH and ADDRL are located in shared data memory 0x70 - 0x7F (common RAM)
;
BCF
INTCON,GIE
; Disable ints so required sequences will execute properly
BANKSEL
EEADRH
; Bank 3
MOVF
ADDRH,W
; Load initial address
MOVWF
EEADRH
;
MOVF
ADDRL,W
;
MOVWF
EEADRL
;
MOVLW
LOW DATA_ADDR
; Load initial data address
MOVWF
FSR0L
;
MOVLW
HIGH DATA_ADDR ; Load initial data address
MOVWF
FSR0H
;
BSF
EECON1,EEPGD
; Point to program memory
BCF
EECON1,CFGS
; Not configuration space
BSF
EECON1,WREN
; Enable writes
BSF
EECON1,LWLO
; Only Load Write Latches
LOOP
MOVIW
FSR0++
; Load first data byte into lower
MOVWF
EEDATL
;
MOVIW
FSR0++
; Load second data byte into upper
MOVWF
EEDATH
;
MOVF
EEADRL,W
; Check if lower bits of address are '000'
XORLW
0x07
; Check if we're on the last of 8 addresses
ANDLW
0x07
;
BTFSC
STATUS,Z
; Exit if last of eight words,
GOTO
START_WRITE
;
MOVLW
55h
; Start of required write sequence:
MOVWF
EECON2
; Write 55h
MOVLW
0AAh
;
MOVWF
EECON2
; Write AAh
BSF
EECON1,WR
; Set WR bit to begin write
NOP
; Any instructions here are ignored as processor
; halts to begin write sequence
NOP
; Processor will stop here and wait for write to complete.
; After write processor continues with 3rd instruction.
INCF
EEADRL,F
; Still loading latches Increment address
GOTO
LOOP
; Write next latches
START_WRITE
BCF
EECON1,LWLO
; No more loading latches - Actually start Flash program
; memory write
MOVLW
55h
; Start of required write sequence:
MOVWF
EECON2
; Write 55h
MOVLW
0AAh
;
MOVWF
EECON2
; Write AAh
BSF
EECON1,WR
; Set WR bit to begin write
NOP
; Any instructions here are ignored as processor
; halts to begin write sequence
NOP
; Processor will stop here and wait for write complete.
; after write processor continues with 3rd instruction
BCF
EECON1,WREN
; Disable writes
BSF
INTCON,GIE
; Enable interrupts
Required
S
equence
Required
Sequenc
e
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KSZ8895MQXCA 功能描述:Ethernet Switch 10/100 Base-T/TX I2C, SPI Interface 128-PQFP (14x20) 制造商:microchip technology 系列:- 包裝:托盤 零件狀態(tài):有效 協(xié)議:以太網(wǎng) 功能:開關(guān) 接口:I2C，SPI 標(biāo)準(zhǔn):10/100 Base-T/TX 電壓 - 電源:1.8V，2.5V，3.3V 電流 - 電源:129mA 工作溫度:0°C ~ 70°C 封裝/外殼:128-BFQFP 供應(yīng)商器件封裝:128-PQFP（14x20） 標(biāo)準(zhǔn)包裝:66
KSZ8895MQXIA 功能描述:Ethernet Switch 10/100 Base-T/TX I2C, SPI Interface 128-PQFP (14x20) 制造商:microchip technology 系列:- 包裝:托盤 零件狀態(tài):有效 協(xié)議:以太網(wǎng) 功能:開關(guān) 接口:I2C，SPI 標(biāo)準(zhǔn):10/100 Base-T/TX 電壓 - 電源:1.8V，2.5V，3.3V 電流 - 電源:129mA 工作溫度:-40°C ~ 85°C 封裝/外殼:128-BFQFP 供應(yīng)商器件封裝:128-PQFP（14x20） 標(biāo)準(zhǔn)包裝:66
KSZ8895RQ 功能描述:以太網(wǎng) IC 5-port Switch, one SW5-RMII and one P5-RMII Interface 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
KSZ8895RQ TR 功能描述:以太網(wǎng) IC 5-port Switch, one SW5-RMII and one P5-RMII Interface 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
KSZ8895RQ-EVAL 功能描述:以太網(wǎng)開發(fā)工具 5-port Switch, one SW5-RMII and one P5-RMII Interface - Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
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