ACD82224 Datasheet, PDF (47/77 Pages) List of Unclassifed Manufacturers – 24 Ports 10/100 Fast Ethernet Switch

ADDR00
B03
ADDR01
B01
ADDR02
C02
ADDR03
C01
ADDR04
D02
ADDR05
D01
ADDR06
E01
ADDR07
E02
ADDR08
B07
ADDR09
A07
ADDR10
A03
ADDR11
B04
ADDR12
A04
ADDR13
B05
ADDR14
A05
ADDR15
B06
ADDR16
A06
ADDR17
B08
ADDR18
A08
nWE
C04
nCS
D03
ARL & MIB Interfaces Signals
Pin Name
Location
SWDIR00
K03
SWDIR01
L03
SWSYNC
E03
SWSTAT00 A14
SWSTAT01 A13
SWSTAT02 B13
SWSTAT03 A12
SWRXCLK A09
SWTXCLK A11
ARLDI00
G04
ARLDI01
F03
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O
Memory address bus
O
Write enable:
0=Write
1=Read
O
Chip enable, low active
I/O
Description
O
Data Direction Indicator :
00 = idle, 01 = receive, 10 = transmit, 11 = control
O
Port synchronization: indicating when Port-0 is driving
DAT[47:0]
O
Data state indicator SWSTAT[3:0]:
0000 – Idle
0001 – First word (DA)
0010 – Second word (SA)
0011 – Third through last word
0100 – Filter Event
0101 – Drop Event
0110 – Jabber
0111 – False Carrier (receive)
- Deferred Transmission (transmit)
1000 – Alignment error (receive)
- Single Collision (transmit)
1001 – Flow Control (receive)
- Multiple Collision (transmit)
1010 – Short Event (receive)
- Excessive Collision (transmit)
1011 – Runt (receive)
- Late Collision (transmit)
1100 – Symbol Error
1101 – FCS Error
1110 – Long Event
1111 – Reserved
O
Receive Clock, used by ACD80800 and ACD80900
O
Transmit Clock, used by ACD80900 only
I
ARL Data Input used by ACD80800 only:
Returns 12-bit ARL look-up result to the switch:
Confidential
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