RTL8181 ETC, RTL8181 Datasheet - Page 5

• Manufacturer Part Number: RTL8181
• Description: Wireless LAN Access Point/Gateway Controller
• Manufacturer: ETC

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Fast Ethernet Controller
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UART
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Memory Controller
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PCI Bridge
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GPIO
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Watchdog/Timer/Counter
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EJTAG
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2. Pin Description
Symbol
Memory Interface
MD[31-0] I/O
MA[21-0]/
DQM[3-0]
CONFIDENTIAL
Fully compliant with IEEE 802.3/802.3u
Support MII interface with full and half duplex capability
Support descriptor-based buffer management with scatter-gather capability
Support IP, TCP and UDP checksum offload
Support IEEE 802.1Q VLAN tagging and 802.1P priority queue.
Support full duplex flow control (IEEE 802.3X)
16550 compatible
16 bytes FIFO size
Auto CTS/RTS flow control
Support external 16/32-bit SDRAM with 2 banks access, up to 32M bytes
Support external 16-bit Flash memory, up to 16M bytes
Support two external PCI devices, complied with PCI 2.2
Support PCI master/slave mode
3.3 and 5V I/O tolerance
16 programmable I/O ports and more 16 port when memory interface is 16 bit mode.
Individually configurable to input, output and edge transition
A hardware watchdog timer, used to reset processor when system hangs up
4 sets of general timers/counters
Standard P1149.1 JTAG interface for testing and debugging
Typ
e
O
Pin No(208) Pin No(292) Description
198,197,195
,194,193,19
2,191,190,1
88,187,185,
184,182,181
,180,179,17
7,176,174,1
73,171,170,
169,168,166
,165,163,16
2,161,160,1
59,158
115,116,118
,119,121,12
2,124,125,1
27,128,130,
131,133,134
,135,136,13
P1,P2,N3,N
2,N1,M3,M
2,M1,L2,L3,
L1,K2,K3,K
1,J2,J1,H2,
H1,G2,F1,G
3,F2,E1,F3,
E2,D1,D2,E
3,A1,B1,B2,
C3
B14,A15,D1
4,C14,A14,
C13,B13,C1
2,A12,C11,
B11,C10,A1
1,B10,A10,
Data for SDRAM, Flash.
Address for SDRAM, Flash.
MA[15-18] mapping to DQM[3-0] for SDRAM
5
RTL8181
v1.0