參數(shù)資料
型號： RTL8305SB
英文描述： RTL8305SB
中文描述： RTL8305SB
文件頁數(shù)： 9/66頁
文件大?。?/td> 963K
代理商： RTL8305SB
RTL8305SB
2002/04/09
9
Rev.1.0
MTXD[3]/
PRXD[3]/
P4IRTag[1]
MTXD[2]/
PRXD[2]/
P4IRTag[0]
57
56
I/O
Output after reset:
For MAC mode MII (P4Mode[1:0]=11), these pins are MTXD[3:0],
MII transmit data of MAC
.
For PHY mode MII (P4Mode[1:0]=01), these pins are PRXD[3:0],
MII
receive data of PHY
.
For PHY mode SNI (P4Mode[1:0]=00), PRXD[0] is
SNI serial receive data
.
Input upon reset: P4IRTag[1:0]
Insert/Remove Priority Tag of Port4.
11: Do not insert/remove Tag from Output High and Low Queue of Port4.
10: Insert Tag from Output High and Low Queue of Port4.
01: Insert Tag from Output High Queue only of Port4.
00: Remove Tag from Output High and Low Queue of Port4.
RTL8305SB = MTXD[3:2]/PRXD[3:2]/P4IRTag[1:0], RTL8305S =
MTXD[3:2]/MRXD[3:2]. In order to differentiate between MAC and
PHY mode, the RTL8305SB changes the pin name for PHY mode. For
RTL8305SB: These pins are input pins used for strapping upon reset and
used as output pins (output data) after reset. For RTL8305S: These pins
are used as output pins (output data) after reset.
These pins are used for Port4 only. Use serial EEPROM for other ports.
Output after reset:
For MAC mode MII (P4Mode[1:0]=11), these pins are MTXD[3:0],
MII transmit data of MAC
.
For PHY mode MII (P4Mode[1:0]=01), these pins are PRXD[3:0],
MII
receive data of PHY
.
For PHY mode SNI (P4Mode[1:0]=00), PRXD[0] is
SNI serial receive
data
.
Input upon reset: LEDMode[1:0]
Each port has four LED indicator pins. Each pin may has different
indicator meaning set by pins LEDMode[1:0].
LEDMode[1:0]=11 : Speed + Link/Act + Duplex/Col + Link/Act/Spd.
LEDMode[1:0]=10 : Speed + Act + Duplex/Col + Bi-color Link/Active.
LEDMode[1:0]=01 : Speed + RxAct + TxAct + Link.
LEDMode[1:0]=00 : Speed + Link/Act + Col + Duplex.
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.
Link/Act/Spd: Link, Activity, and Speed Indicator. On for link
established. Blinking every 43ms when the corresponding port is
transmitting or receiving in 100Mb/s. Blinking every 120ms when the
port is transmitting or receiving in 10Mb/s.
RTL8305SB = MTXD[1:0]/PRXD[1:0]/LEDMode[1:0], RTL8305S =
MTXD[1:0]/MRXD[1:0]. In order to differentiate between MAC and
PHY mode, the RTL8305SB changes the pin name for PHY mode. For
RTL8305SB: These pins are input pins used for strapping upon reset and
used as output pins (output data) after reset. For RTL8305S: These pins
are used as output pins (output data) after reset.
11
MTXD[1]/PRXD[1]/
LEDMode[1]
MTXD[0]/PRXD[0]/
LEDMode[0]
55
54
I/O
11
Cont…
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