RTL8306SD/RTL8306SDM
Datasheet
Pin
Name
Pin Type
No.
Drive
(MA)
Description
Default
MRXC/
PTXC/
59
I/O
(IPU)
8
When MII/RMII 1 is used by MAC 4 in MAC mode; this
pin is input pin MRXC.
-
REFCLK1
When MII/RMII 1 is used by MAC 4 in PHY mode; this pin
is output pin PTXC.
(When MII/RMII 1 is used by MAC 4 in RMII mode, this
pin is bi-directional REFCLK 1).
When pin 51 is pulled high in this mode upon reset, this pin
is an input pin, and can receive an external clock.
When pin 51 is pulled down in this mode upon reset, this pin
is an output pin, and can output a 50MHz clock).
MCOL/
PCOL
58
I/O
(IPD)
4
When MII/RMII 1 is used by MAC 4 in MAC mode; this
pin is input pin MCOL.
-
When MII/RMII 1 is used by MAC 4 in PHY mode; this pin
is output pin PCOL.
When MII/RMII 1 is used by MAC 4 in RMII mode; this
pin is not used.
MTXD[3]/
PRXD[3]/
P4IRTAG[1]
57
56
I/O
(IPU)
4
4
Output after reset.
When MII/RMII 1 is used by MAC 4 in MAC mode; this
pin is output pin MTXD[3:2].
When MII/RMII 1 is used by MAC 4 in PHY mode; this pin
is output pin PRXD[3:2].
11
MTXD[2]/
PRXD[2]/
I/O
(IPU)
P4IRTAG[0]
When MII/RMII 1 is used by MAC 4 in RMII mode; this
pin is not used.
Input upon reset.
The 2 pins are strapping pin P4IRTAG[1:0]:
Insert/Remove Priority Tag of Port4.
11: Do not insert/remove VLAN tags to/from packets.
10: Insert PVID to non-tagged packets.
01: Remove tags from tagged packets.
00: Replace the VID with a PVID for tagged packets and
insert a PVID to non-tagged packets.
Note: These pins are used for Port4 only. Use serial
EEPROM for other ports.
M(R)
TXD[1]/
PRXD[1]/
LEDMODE[1]
55
I/O
(IPU)
4
Output after reset.
When MII/RMII 1 is used by MAC 4 in MAC mode; this
pin is output pin MTXD [1:0].
11
6-Port 10/100Mbps Single-Chip Dual MII/RMII Switch Controller
14
Track ID: JATR-1076-21 Rev. 1.1
REALTEK [ Realtek Semiconductor Corp. ]
