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參數(shù)資料
| 型號： | RTL8309SB |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SINGLE-CHIP 9-PORT 10/100MBPS SWITCH CONTROLLER |
| 中文描述： | 單芯片9口10/100Mbps開關(guān)控制器 |
| 文件頁數(shù)： | 24/115頁 |
| 文件大?。?/td> | 866K |
| 代理商： | RTL8309SB |
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RTL8309SB
Datasheet
Single-chip 9-port 10/100Mbps Switch Controller
9
Track ID: JATR-1076-21 Rev. 1.4
5.3.
Miscellaneous Pins
Table 4. Miscellaneous Pins
Type Description
I
25MHz crystal input.
The clock tolerance is +-50ppm.
O
25MHz crystal output.
Pin Name
X1
Pin No.
118
Default
X2
119
RESET#
47
I
Active low reset signal.
To complete the reset function, this pin must be asserted for at least
10ms. After reset, about 30ms is needed for the RTL8309SB to
complete the internal test function and initialization.
Note: This pin is a Schmitt input pin.
Control transmit output waveform Vpp.
This pin should be grounded through a 2.0K ohm resistor.
Not Connected – Floating in normal operation.
IBREF
122
A
NC
45, 46,
116, 121
5.4.
Port LED Pins
Each port supports four LED pins for status indication. The indicated status of these four LED pins may be changed by setting
different values for strapping pin LED_MODE[2:0].
Note 1: All LED statuses are represented as active-low or high depending on input strapping, except Bi-color Link/Act in
Bi-color LED mode, whose polarity depends on Bi-color Speed status.
Note 2: Those pins are dual function pins: output for LED and input for strapping.
Table 5. Port LED Pins
Type Description
I
pu
/O
Output after reset = used for the 1
st
LED.
Mode 7: Speed (On =100 Mbps, Off =10Mbps)
Mode 6: Activity (Flash=Tx or Rx activity)
Mode 5: Speed (On =100 Mbps, Off =10Mbps)
Mode 4: Collision (Flash=Collision)
Mode 3: Reserved for internal use
Mode 2: RxAct+10/100 (Flash every 120ms=10Mbps Rx activity,
Flash every 43ms = 100Mbps Rx activity).
Mode 1: Duplex+Collision (On=Full, Off=Half with no collision,
Flash = Collision)
Mode 0: Bi-color Speed. Polarity depends on Bi-color Link+Activity
LED status. Refer to section 8.3.17 LEDs, page 87, for detailed
information.
Pin Name
P0_LED[0]
P1_LED[0]
P2_LED[0]
P3_LED[0]
P4_LED[0]
P5_LED[0]
P6_LED[0]
P7_LED[0]
Pin No.
112, 106,
102, 98,
92, 86,
82, 76
Default
1
1
1
1
1
1
1
1
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