RTL8306SD/RTL8306SDM
Datasheet
Pin Name
Pin
No.
Type Drive Description
(MA)
Default
PHY2
89
I/O
4
When MII/RMII 2 is not enabled, this pin is strapping pin
1
LED_BLINK_TIME only.
PCOL
(IPU)
To set the blinking speed of the activity and collision LEDs.
Upon reset:
1: On 43ms, then Off 43ms
/M2COL
/LED_
BLNK_
TIME
0: On 120ms, then Off 120ms
After reset:
Not used.
When MII/RMII 2 is enabled for PHY 4 or MAC 5:
For MAC mode MII, this pin is input pin M2COL.
For PHY mode MII, this pin is IO pin
PHY2COL/LED_BLNK_TIME.
Upon reset this pin is strapping pin LED_BLINK_TIME:
1: On 43ms, then Off 43ms
0: On 120ms, then Off 120ms
After reset:
This pin is output pin PHY2COL.
For RMII mode it is strapping pin LED_BLINK_TIME.
Upon reset:
1: On 43ms, then Off 43ms
0: On 120ms, then Off 120ms
After reset:
Not used.
PHY2PTXC/
M2RXC/REFCL
K2
82
I/O
(IPU)
8
When MII/RMII 2 is enabled for PHY 4 or MAC 5:
For MAC mode MII; the 2 pins are input pin M2RXC.
1
For PHY mode MII; the 2 pins are output pin PHY2PTXC.
For RMII mode, pin 82 is bi-directional pin REFCLK2,
whose direction is controlled by pin 81.
Pin 81Ctrl_REFCLK2 is a strapping pin to control the
direction of Pin 82 in RMII mode.
PHY2PRXC/
M2TXC/
Ctrl_REFCLK2
81
I/O
(IPU)
8
1
Upon reset:
If pin 81 is pulled-high, then pin 82 is an input pin to receive
an external 50MHz RMIICLOCK.
If pin 81 is pulled-low, then pin 82 is an output pin to
provide a 50MHz RMIICLOCK.
6-Port 10/100Mbps Single-Chip Dual MII/RMII Switch Controller
19
Track ID: JATR-1076-21 Rev. 1.1
REALTEK [ Realtek Semiconductor Corp. ]
