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PDF W90N740 Data sheet ( Hoja de datos )
| Número de pieza | W90N740 | |
| Descripción | Micro-Controller | |
| Fabricantes | Winbond | |
| Logotipo |  |
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W90N740 Reference Manual
W90N740
32-Bit ARM7TDMI-Based Micro-Controller
Reference Manual
-1-
Publication Release Date: May 9, 2003
Revision A2
Free Datasheet http://www.datasheet4u.com/
1 page  
W90N740 Reference Manual
External Bus Interface (EBI)
• External I/O Control with 8/16/32 bit external data bus
• Cost-effective memory-to-peripheral DMA interface
• SDRAM Controller supports up to 2 external SDRAM & the maximum size of each device is 32MB
• ROM/FLASH & External I/O interface
• Support for PCMCIA 16-bit PC Card devices
On-Chip Instruction and Data Cache
• Two-way, Set-associative, 8K-byte I-cache and 2K-byte D-cache
• Support for LRU (Least Recently Used) Protocol
• Cache can be configured as an internal SRAM
• Support Cache Lock function
Ethernet MAC Controller (EMC)
• IEEE 802.3 protocol engine with programmable MII or RMII interface for 10/100 Mbits/s
• DMA engine with burst mode
• 256 bytes transmit & 256 bytes receive FIFO for MAC protocol engine and DMA access
• Built-in 16 entry CAM Address Register
• Support long frame (more than 1518 bytes) and short frame (less than 64 bytes)
• Re-transmit (during collision) the frame without DMA access
• Half or full duplex function option
• Support Station Management for external PHY
• On-Chip Pad generation
NAT Accelerator (Patent Pending)
• Hardware acceleration on IP address / port number look up and replacement for network address
translation, including MAC address translation
• Provide 64 entries of translation table
• Support TCP / UDP packets
GDMA Controller
• 2 Channel GDMA for memory-to-memory data transfers without CPU intervention
• Increase or decrease source / destination address in 8-bit, 16-bit, or 32-bit data transfers
• Supports 4-data burst mode to boost performance
• Support external GDMA request
Publication Release Date: May 9, 2003
- 5 - Revision A2
Free Datasheet http://www.datasheet4u.com/
5 Page 
W90N740 Reference Manual
Pins Assignment, Continued
PIN NAME
Ethernet Interface (0)
MDC0
MDIO0
COL0 /
CRS0 /
R1B_CRSDV
TX0_CLK
TX0D [3:0] / R1B_TXD [1:0],
R0_TXD [1:0]
TX0_EN / R0_TXEN
RX0_CLK / R0_REFCLK
RX0D [3:0] / R1B_RXD [1:0],
R0_RXD [1:0]
RX0_DV / R0_CRSDV
RX0_ERR
Ethernet Interface (1)
MDC1
MDIO1
COL1
CRS1
TX1_CLK
TX1D [3:0] / R1A_TX [1:0]
TX1_EN /R1A_TXEN
RX1_CLK / R1A_REFCLK
RX1D [3:0] / R1A_RXD [1:0]
RX1_DV / R1A_CRSDV
RX1_ERR / R1A_RXERR
176-PIN LQFP
( 17 pins )
z 142
z 143
z 151
z 152
z 150
z 149-146
z 144
z 153
z 159-157,154
z 160
z 161
( 17 pins )
z 10
z8
z6
z7
z 11
z 4-1
z5
z 167
z 172-169
z 168
z 166
- 11 -
Publication Release Date: May 9, 2003
Revision A2
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 39 Páginas | |
| PDF Descargar | [ Datasheet W90N740.PDF ] | |
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