User's Manual

RTL8197D-11AC
AP/Router User's Manual
5-Port 10/100M Ethernet Router Network Processor 2 Track ID: JATR-3375-16 Rev. 1.1
2. Features
SOC
 Embedded RISC CPU, RLX5281 with
64Kbyte I-Cache, 32Kbyte D-Cache,
16Kbyte I-MEM, 8Kbyte D-MEM
 Supports MIPS-1 ISA, MIPS16 ISA
 Clock Rate: 500MHz~660MHz
 Provides a standard 5-signal P1149.1
EJTAG test port
 Supports RLX5281 CPU suspend mode
L2 Capabilities
 Five Ethernet MAC switch with five
IEEE 802.3 10/100M physical layer
transceivers
 Supports one GMII/RGMII/MII port to
connect to an external MAC or PHY
(supports both PHY mode and MAC
mode) for HomePlug or HomePNA
applications on RTL8197D
 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
 Bi-color LED display mode
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 to connect up to two
master devices
 Two PCI Express PHY embedded
Supports two-port USB
One is USB 2.0 host
One is USB 2.0 Host or Device
 Two USB PHYs are embedded
 Supports one I2S interface
 Supports two 16550 UARTs
 Supports up to 46 GPIO pins
Memory Interfaces
 Serial Flash (SPI Type)
 Supports two banks 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
NAND Flash
System supports up to 4 Gigabyte
Flash memory space
 SDR DRAM
 Supports two SDR DRAM banks;
each can be configured as
2M/4M/8M/16M/32M/64Mbyte
 16-bit SDR DRAM data bus
supported. System totally supports up
to 128Mbyte SDR DRAM memory
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