參數(shù)資料
型號: 78Q8430EBST#DB
廠商: Maxim Integrated Products
文件頁數(shù): 5/88頁
文件大?。?/td> 0K
描述: EVAL BOARD 78Q8430
標準包裝: 1
系列: *
DS_8430_001
78Q8430 Data Sheet
Rev. 1.2
13
3.2.2
Media Dependent Interface (MDI) Pins
Table 3: MDI Pin Descriptions
Signal
Pin Number
Type
Description
TXP
97
A
Transmit Output Positive/Negative
Transmitter outputs for both 10BASE-T and 100BASE-TX.
MDI-X Mode: Receive Input Positive/Negative
Receiver inputs for both 10BASE-T and 100BASE-TX.
TXN
98
A
RXP
94
A
Receive Input Positive/Negative
Receiver inputs for both 10BASE-T and 100BASE-TX.
MDI-X Mode: Transmit Output Positive/Negative
Transmitter outputs for both 10BASE-T and 100BASE- TX.
RXN
93
A
3.2.3
LED Display (PHY) Pins
The LED pins use standard logic drivers. They output a logic low when the LED is meant to be on and
are tri-state when it is meant to be off. The LED cathode should be connected to the output pin and a
series resistor from the power supply connected to the LED anode.
Table 4: LED Pin Descriptions
Signal
Pin Number
Type
Description
LED0
90
OZ
PHY display LED0 (Link OK)
The default for LED0 is Link OK (LED is on for link established).
LED1
92
OZ
PHY display LED1 (Activity)
The default for LED1 is Link Activity (LED blinks for Rx or Tx data
transferred).
3.2.4
EEPROM Pins
Table 5: EEPROM Interface Pin Descriptions
Signal
Pin Number
Type
Description
PROM_CS
75
O
EEPROM Chip Select
Used to frame transmissions to and from an external
EEPROM.
PROM_CLK
74
O
EEPROM Clock
Clock for transmitting to and from an external EEPROM/ROM.
This is compatible with the slowest commercial parts, which
specify a maximum frequency of 1 MHz.
PROM_DI
77
I
EEPROM Data In
Data line for transmitting from the external EEPROM to the
controller. Must be high with no EEPROM present.
PROM_DO
76
OZ
EEPROM Data Out
Transfers data from the controller to an external
EEPROM/ROM.
相關PDF資料
PDF描述
CM453232-R18KL INDUCTOR 180NH 700MA SMD
REC15-1205D/H3 CONV DC/DC 15W 12VIN +/-05VOUT
VI-JWL-EZ-F3 CONVERTER MOD DC/DC 28V 25W
A3BKB-2406G IDC CABLE- ASR24B/AE24G/APK24B
REC15-2415D/H3 CONV DC/DC 15W 24VIN +/-15VOUT
相關代理商/技術參數(shù)
參數(shù)描述
78Q8430STEM#DB 功能描述:以太網(wǎng)開發(fā)工具 3-in-1 Silicon Delay Line RoHS:否 制造商:Micrel 產品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
78-R3 功能描述:3M SCOTCHCAST REENTERABLE SIGNAL 制造商:3m 系列:* 零件狀態(tài):在售 標準包裝:1
78-R4 功能描述:3M SCOTCHCAST REENTERABLE SIGNAL 制造商:3m 系列:* 零件狀態(tài):在售 標準包裝:1
78RB02 功能描述:SWITCH 2 POS DIP RECESSED UNSLD RoHS:否 類別:開關 >> DIP 系列:78 特色產品:RDM Series Rotary DIP Switch 標準包裝:70 系列:RDM 電路:十六進制 位置數(shù):16 觸點額定電壓:0.1A @ 42VDC 觸動器類型:用于工具旋轉 觸動器電平:凹槽式 安裝類型:通孔 方向:頂部觸動 可清洗:是 其它名稱:EG4977-5RDMAR16PIT
78RB02RA 制造商:Grayhill 功能描述:DIP, 2 POS, FLUSH ACTUATOR, SPST, GOLD - Rail/Tube