2. Features
SOC
Embedded RISC CPU, RLX4181 with
16Kbyte I-Cache, 8Kbyte D-Cache,
16Kbyte I-MEM, 8Kbyte D-MEM
Supports MIPS-1 ISA, MIPS16 ISA
Clock Rate: 400MHz
Provides a standard P1149.1 EJTAG test
port
Supports RLX4181 CPU suspend mode
L2 Capabilities
Five Ethernet MAC switch with five
IEEE 802.3 10/100M physical layer
transceivers
Non-blocking wire-speed reception and
transmission and non-head-of-line-
blocking/forwarding
Internal 256Kbit SRAM for packet
buffering
Internal 1024 entry 4-way hash L2 look-
up table
Supports source and destination MAC
address filtering
CPU Interface (NIC)
Supports BSD mbuf-like packet structure
with adjustable cluster size (128-byte to
2Kbyte) to provide optimum memory
utilization
The NIC DMA supports multiple-
descriptor-ring architecture for QoS
applications
Peripheral Interfaces
Supports PCI Express Host with
integrated PHY
One PCI Express PHY embedded
5-Port 10/100M Ethernet Router Network Processor
RTL8196E
Datasheet
Supports one-port USB
USB 2.0 Host or Device
One USB PHY embedded
Supports two 16550 UARTs
Supports up to 16 GPIO pins
Memory Interfaces
Serial Flash (SPI Type)
Supports one bank and dual I/O
channels for SPI Flash application
Each Flash bank could be configured
as 256K/512K/1M/2M/4M/8M/16M
Bytes
Boot up from SPI flash is supported
SDR DRAM
Supports one SDR DRAM bank; each
can be configured as
2M/4M/8M/16M/32M/64Mbyte
16-bit SDR DRAM data bus
supported
DDR1 DRAM
Supports one DDR1 DRAM bank
that can be configured as
16M/32M/64M/128Mbytes
16-bit DDR1 DRAM data bus
supported. System totally supports up
to 128Mbyte DDR1 DRAM memory
space
DDR2 DRAM
Supports one DDR2 DRAM bank
that can be configured as
32M/64M/128Mbyte
16-bit DDR2 DRAM data bus
supported. System totally supports up
to 128Mbyte DDR2 DRAM memory
space
Supports Green Ethernet
Cable length power saving
Link down power saving
2
Track ID: JATR-3375-16 Rev. 1.0