參數資料
型號： RTL8201CP-VD-LF
廠商： Electronic Theatre Controls, Inc.
英文描述： SINGLE-CHIP/SINGLE-PORT 10/100M FAST ETHERNET PHYCEIVER (With Auto Crossover)
中文描述： SINGLE-CHIP/SINGLE-PORT個10/100M快速以太網PHYCEIVER（自動交叉）
文件頁數： 10/38頁
文件大?。?/td> 512K
代理商： RTL8201CP-VD-LF
RTL8201CP
Datasheet
Single-Chip/Port 10/100 Fast Ethernet PHYceiver
5
Track ID: JATR-1076-21 Rev. 1.21
Name
MDC
Type
I
Pin No.
25
Description
Management Data Clock.
This pin provides a clock synchronous to MDIO, which may be asynchronous to
the transmit TXC and receive RXC clocks. The clock rate can be up to 2.5MHz.
Management Data Input/Output.
This pin provides the bi-directional signal used to transfer management
information.
MDIO
IO
26
5.2. SNI (Serial Network Interface) 10Mbps Only
Table 2. SNI (Serial Network Interface) 10Mbps Only
Pin No.
Description
1
Collision Detect.
21
Received Serial Data.
23
Carrier Sense.
16
Receive Clock.
Resolved from received data.
6
Transmit Serial Data.
7
Transmit Clock.
Generated by PHY.
2
Transmit Enable.
For MAC to indicate transmit operation.
Name
COL
RXD0
CRS
RXC
Type
O
O
O
O
TXD0
TXC
I
O
TXEN
I
5.3. Clock Interface
Table 3. Clock Interface
Description
25MHz Crystal Output.
This pin provides the 25MHz crystal output. It must be left open when an external
25MHz oscillator drives X1.
25MHz Crystal Input.
This pin provides the 25MHz crystal input. If a 25MHz oscillator is used, connect
X1 to the oscillator’s output (see 8.3 Crystal Characteristics, page 30, for clock
source specifications.
Name
X2
Type
O
Pin No.
47
X1
I
46
5.4. 10Mbps/100Mbps Network Interface
Table 4. 10Mbps/100Mbps Network Interface
Pin No.
Description
34
33
Differential transmit output pair shared by 100Base-TX, 100Base-FX and
10Base-T modes. When configured as 100Base-TX, output is an MLT-3 encoded
waveform. When configured as 100Base-FX, the output is pseudo-ECL level.
28
Transmit Bias Resistor Connection.
This pin should be pulled to GND by a 2K
(1%) resistor to define driving
current for the transmit DAC. The resistance value may be changed, depending on
experimental results of the RTL8201CP.
31
30
Differential receive input pair shared by 100Base-TX, 100Base-FX, and 10Base-T
modes.
Name
TPTX+
TPTX-
Type
O
O
Transmit Output.
RTSET
I
TPRX+
TPRX-
I
I
Receive Input.
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