RTL8305SC Datasheet, PDF (32/160 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP 5-PORT 10/100MBPS SWITCH CONTROLLER WITH DUAL MII INTERFACES

Pin Name
IBREF
VCTRL
ITEST1
ITEST2
ITEST3
ITEST4
ITEST5
ITEST6
DTEST2
DTEST1
RTL8305SC
Datasheet
Pin No. Type
127
A
123
O
36
37
38
41
65
72
124
125
Drive (mA) Description
Control transmit output waveform Vpp
This pin should be grounded through a 1.96KΩ resistor.
4
Voltage control to external regulator
This signal controls a power PNP transistor to generate the 1.8V
power supply.
Reserved pin for internal use. Should be left floating
Reserved pin for internal use. Should be left floating
Reserved pin for internal use. Should be left floating
Reserved pin for internal use. Should be left floating
Reserved pin for internal use. Should be left floating
Reserved pin for internal use. Should be left floating
Reserved pin for internal use. Should be left floating
Reserved pin for internal use. Should be left floating
5.6. Port LED Pins
Each port has four LED indicator pins. Each pin may have different indicator meanings as set by pins
LEDMODE[1:0].
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 Spd status.
Those pins that are dual function pins are output for LED or input for strapping. Below are LED
descriptions only.
Table 7. Port LED Pins
Pin Name
LED_SPD[4:0]/…
Pin No.
93,
98,
104,
109,
114
Type
I/O_PU
Drive (mA) Description
4
Output After Reset = Used for 1^st LED.
LEDMode[1:0]=11 -> Speed (On=100, Off=10)
LEDMode[1:0]=10 -> Speed (On=100, Off=10)
LEDMode[1:0]=01 -> Speed (On=100, Off=10)
LEDMode[1:0]=00 -> Reserved
LED_ACT[4:0]/… 92,
97,
103,
108,
113
I/O_PU
Input Upon Reset = Refer to Table 9, on page 22, and Table 10, on
page 24.
4
Output After Reset = Used for 2^nd LED.
LEDMode[1:0]=11 -> Link/Act: (On=Link, Off=No Link,
Flash=Tx or Rx activity)
LEDMode[1:0]=10 -> Act: (Off=No activity, On=Tx or Rx
activity)
LEDMode[1:0]=01 -> RxAct: (Off=No activity, On=Rx activity)
LEDMode[1:0]=00 -> Reserved
Input Upon Reset = Refer to Table 9, on page 22, and Table 10, on
page 24.
5-port 10/100Mbps Single-Chip Dual MII Switch Controller 20
Track ID: JATR-1076-21 Rev. 1.2