RTL8181 Просмотр технического описания (PDF) - Realtek Semiconductor
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RTL8181 Datasheet PDF : 50 Pages
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Fast Ethernet Controller
? 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)
UART
? 16550 compatible
? 16 bytes FIFO size
? Auto CTS/RTS flow control
Memory Controller
? Support external 16/32-bit SDRAM with 2 banks access, up to 32M bytes
? Support external 16-bit Flash memory, up to 16M bytes
PCI Bridge
? Support two external PCI devices, complied with PCI 2.2
? Support PCI master/slave mode
? 3.3 and 5V I/O tolerance
GPIO
? 16 programmable I/O ports and more 16 port when memory interface is 16 bit mode.
? Individually configurable to input, output and edge transition
Watchdog/Timer/Counter
? A hardware watchdog timer, used to reset processor when system hangs up
? 4 sets of general timers/counters
EJTAG
? Standard P1149.1 JTAG interface for testing and debugging
2. Pin Description
Symbol Typ Pin No(208) Pin No(292) Description
e
Memory Interface
MD[31-0] I/O 198,197,195 P1,P2,N3,N Data for SDRAM, Flash.
,194,193,19 2,N1,M3,M
2,191,190,1 2,M1,L2,L3,
88,187,185, L1,K2,K3,K
184,182,181 1,J2,J1,H2,
,180,179,17 H1,G2,F1,G
7,176,174,1 3,F2,E1,F3,
73,171,170, E2,D1,D2,E
169,168,166 3,A1,B1,B2,
,165,163,16 C3
2,161,160,1
59,158
MA[21-0]/ O 115,116,118 B14,A15,D1 Address for SDRAM, Flash.
DQM[3-0]
,119,121,12 4,C14,A14, MA[15-18] mapping to DQM[3-0] for SDRAM
2,124,125,1 C13,B13,C1
27,128,130, 2,A12,C11,
131,133,134 B11,C10,A1
,135,136,13 1,B10,A10,
CONFIDENTIAL
5
RTL8181
v1.0
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