AS3525-A/-B C22O22
Data Sheet, Confidential
7.3.13 UART – Universal Asynchronous Receiver/Transmitter
The UART is a Universal Asynchronous Receiver Transmitter compatible to industry standard 16550 with APB slave interface. This UART provides
FIFO based transmitter-receiver pair with programmable Baud-rate, character widths and parity encoding. Status and error information is also
provided by the design. Maximum baud rate supported by this UART is 1Mbps for input clock of 16MHz.
Features
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Compliance to Industry Standard 16550 UART.
APB slave interface.
Separate 16x8 Transmit and 16x11 Receive FIFOs.
Programmable FIFO disabling for 1-byte depth.
Programmable Baud rate Generator.
Independent masking for transmit, receive and Error interrupts.
False Start bit detection.
Line Break generation and detection.
Fully programmable serial interface characteristics:
• Supports 5,6,7 and 8 bits.
• even, odd, stick and no parity generation and detection.
• 1, 11/2 and 2 stop bits.
Figure 39 UART Block Diagram
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