RTL8306SD/RTL8306SDM
Datasheet
Pin Name
Pin
No.
Type
Drive Description
(MA)
Default
Value
P4LNKSTA#
49
I (IPU)
-
Port4 Link Status for MAC:
This pin determines the link status of Port4 MAC in
1
real-time when Port4 MAC works in MAC mode MII /
PHY mode MII/RMII regardless of Port4 PHY circuit
interface is disabled or worked in PHY mode MII/RMII.
This pin is low active. Pulling this pin down sets the
link status of PHY 5 MII register 1.2.
1: No Link.
0: Link
Regardless of whether DISDUALMII=1 or =0, this pin
provides real-time link status to Port4 MAC part in
PHY 5 MII register 1.2 when Port4 MAC part is
configured in MAC mode MII / PHY mode MII/RMII
Mode
When Port4 operates in UTP mode only, the MII/RMII
1 interface is disabled and this pin has no function. It
should be left floating.
P4DUPSTA/HO
ME_CRS
48
I (IPU)
-
When HOMEPNA or HOMEPLUG mode is disabled
(see Table 9, page 27, pin 92), this is a strapping pin.
Upon reset
1
Port4 Duplex Status:
Port4 initial configuration pin for duplex upon reset for
PHY in UTP mode, and strap duplex status for MAC of
other modes upon reset.
1: Full duplex
0: Half duplex
When enabling HOMEPNA or HOMEPLUG mode, this
pin is the CRS signal pin of MII.
P4SPDSTA
47
46
I (IPU)
-
-
Input upon reset
Port4 Speed Status:
Port4 initial configuration pin for speed status upon
reset for PHY of UTP mode only, and strap speed status
for MAC of other modes upon reset.
1: 100Mbps
1
1
0: 10Mbps
P4FLCTRL/CPU
I/O (IPU)
Input upon reset
_
Port4 Flow Control:
interrupt#
Port4 initial configuration pin for flow control upon
reset for PHY of UTP mode, and strap flow control
status for MAC of other modes upon reset.
1: Enable Flow Control ability
0: Disable Flow Control ability
Output after reset:
Provide interrupt signal to CPU when interrupt events
occur.
6-Port 10/100Mbps Single-Chip Dual MII/RMII Switch Controller
12
Track ID: JATR-1076-21 Rev. 1.1
REALTEK [ Realtek Semiconductor Corp. ]
