®
R2880
RISC DSP Communication
RDC
FAST ETHERNET RISC PROCESSOR
2. Block Diagram
X1
X2
VCC
Interrupt
Controller
Unit
Timer
Controller
Unit
DMA
Controller
Unit
Clock & Power
Management Uuit
GND
RST_n
Reset Unit
MAC 0
MAC 1
MII 0
MII 1
PCIRST_n
UCS_n
MCS_n
PCS0_n
PCS1_n
PCS2_n
PCS3_n
PCS5_n
RDC
RISC CPU
Chip
Select
Unit
8K-Byte
L1
Cache
PIO Unit
PCS6_n
PCI Master
PCI Target
Refresh
Control Unit
16550 UART
Serial Port 0
UART0
UART1
RAS_n
CAS_n
WE_n
DQMH
DQML
BA[1:0]
PCI Configuration
Register
SDRAM/Bus Interface
Unit
16550 UART
Serial Port 1
PCI Arbiter
Specifications subject to change without notice, contact your sales representatives for the most update information.
Page 3 of REV 1.0 Jun. 12 2007
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RDC [ RDC SEMICONDUCTOR ]
