Standard Uart; Standard Uart Signals; Standard Uart Block Diagram - Intel PXA27 Series Design Manual

UART Interfaces
10.3.3

Standard UART

The STUART does not support modem control capability and is typically used for the (slow) IrDA
transceiver interface. The maximum baud rate is 921,600 bps.
10.3.3.1

Standard UART Signals

See Table 10-4
Table 10-4. STUART Interface Signals
Signal
Name
STD_RXD
STD_TXD
10.3.3.2

Standard UART Block Diagram

See Figure 10-3
an IrDA transceiver. The block diagram demonstrates high level signal usage and connectivity
when using the STUART.
Figure 10-3. STUART Interface Block Diagram
Processor
STUART
II:10-6
for the list and description of the Standard UART signals.
Direction
Input Standard UART Receive, serial data input to the UART
Output Standard UART Transmit, serial data output from the UART
for illustration of a block diagram showing the interface between the STUART and
PXA27x
STD_RXD
STD_TXD
Transceiver Enable and Speed
Control Signals, that is, from
FPGA, CPLD, or PXA27x GPIOs
Description
§§
®
Intel PXA27x Processor Family Design Guide
IrDA
Transceiver
RXD
TXD
CONTROL
SIGNALS
UART_003_P2