參數(shù)資料
型號(hào): 1894-40KLFT
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: DATACOM, INTERFACE CIRCUIT, QCC40
封裝: 6 X 6 MM, ROHS COMPLIANT, QFN-40
文件頁數(shù): 34/52頁
文件大?。?/td> 459K
代理商: 1894-40KLFT
ICS1894-40
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
PHYCEIVER
IDT / ICS 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE 4
ICS1894-40
REV C 092909
Notes:
1. Ipd = Input with internal pull-down.
Ipu = Input with internal pull-up.
Opu = Output with internal pull-up.
Ipu/O = Input with internal pull-up during power-up/reset; output pin otherwise.
Ipd/O = Input with internal pull-down during power-up/reset; output pin otherwise.
2. MII Rx Mode: The RXD[3..0] bits are synchronous with RXCLK. When RXDV is asserted, RXD[3..0] presents
valid data to MAC through the MII. RXD[3..0] is invalid when RXDV is de-asserted.
3. RMII Rx Mode: The RXD[1:0] bits are synchronous with REF_CLK. For each clock period in which CRS_DV is
asserted, two bits of recovered data are sent from the PHY.
4. MII Tx Mode: The TXD[3..0] bits are synchronous with TXCLK. When TXEN is asserted, TXD[3..0] presents valid
data from the MAC through the MII. TXD[3..0] has no effect when TXEN is de-asserted.
5. RMII Tx Mode: The TXD[1:0] bits are synchronous with REF_CLK. For each clock period in which TX_EN is
asserted, two bits of data are received by the PHY from the MAC.
28
SPEED/
TXCLK
IO/Ipu
10M/100M select as input (during power on reset and hardware reset)
Transmit clock for MII as output
29
TXEN
Input
Transmit enable for both RMII and MII
30
TXD0
Input
Transmit data Bit 0 for both RMII and MII
31
VDDD
Power
Core Power Supply
32
LED3
IO/Ipd
LED3 output
33
TXD1
Input
Transmit data Bit 1for both RMII and MII
34
TXT2
Input
Transmit data Bit 2 for MII
35
TXD3
Input
Transmit data Bit 3 for MII
36
REF_OUT
Output
25 MHz crystal output
37
REF_IN
Input
25 MHz crystal (or clock) input for MII. 50MHz clock input for RMII
38
P4/LED2
IO/Ipu
PHY address Bit 4 as input (during power on reset and hardware reset)
And LED # 2 as output
39
P0/LED0
IO
PHY address Bit 0 as input (during power on reset and hardware reset) and LED #
0(function configurable, default is "activity/no activity") as output
40
P1/LED1
IO
PHY address Bit 1 as input (during power on reset and hardware reset) and LED #
1 (function configurable, default is "10/100 mode") as output
Pin
Number
Pin
Name
Pin
Type
Pin Description
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