ARM ARM DUI 0224I manual NDRVINEN0, SERxTXD, SERxRTS, SERxDTR a, SERxCTS, SERxDSR a

Models: ARM DUI 0224I

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Hardware Description

Figure 3-40 Simplified interface for UART[3:1]

See also UART on page 4-97 and the ARM PrimeCell UART (PL011) Technical

Reference Manual.

The signals associated with the UART interface are shown in Table 3-23.

 

Table 3-23 Serial interface signal assignment

 

 

Signal

Description

 

 

nDRVINEN0

This signal can be driven HIGH by an attached logic tile. This

 

tristates the signals from serial connectors J10A and J10B (SER0

 

and SER1) and allows the RealView Logic Tile to drive these

 

signals. The signal is normally pulled LOW by a resistor to ground.

 

 

nDRVINEN1

This signal can be driven HIGH by an attached logic tile. This

 

tristates the signals from serial connector J11A (SER2) and allows

 

the RealView Logic Tile to drive these signals. The signal is

 

normally pulled LOW by a resistor to ground.

 

 

SERx_TXD

Transmit data

 

 

SERx_RTS

Ready to send

 

 

SERx_DTRa

Data terminal ready

SERx_CTS

Clear to send

 

 

SERx_DSRa

Data set ready

3-90

Copyright © 2003-2010 ARM Limited. All rights reserved.

ARM DUI 0224I

Page 152
Image 152
ARM ARM DUI 0224I manual NDRVINEN0, SERxTXD, SERxRTS, SERxDTR a, SERxCTS, SERxDSR a