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Intel
®
IXP42X product line and IXC1100 control plane processors—Universal Asynchronous
Receiver Transceiver (UART)
Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
DM September 2006
334 Order Number: 252480-006US
Figure 79. UART Block Diagram
clk_uart
rts_n
cts_n
txd
rxd
Interrupt
Control and
Status
Registers
APB
Interface
Baud Rate
Generator
Model Control
Signals
Receive FIFO
(64 Bytes)
Receive Buffer
Register
Receive Shift
Register
Transmit FIFO
(64 Bytes)
Transmit Hold
Register
Transmit Shift Reg
To
Interrupt Controller,
Intel
®
IXP42X
Product-Line /
IXC1100
Control Plane
Processor
To
Intel XScale
®
Core
B1768-02