117
6174B–ATARM–07-Nov-05
AT91FR40162S Preliminary
17. USART: Universal Synchronous Asynchronous Receiver Transmitter
The AT91FR40162S provides two identical, full-duplex, universal synchronous/asynchronous
receiver/transmitters that interface to the APB and are connected to the Peripheral Data
Controller.
The main features are:
• Programmable Baud Rate Generator
• Parity, Framing and Overrun Error Detection
• Line Break Generation and Detection
• Automatic Echo, Local Loopback and Remote Loopback channel modes
• Multi-drop Mode: Address Detection and Generation
• Interrupt Generation
• Two Dedicated Peripheral Data Controller channels
• 5-, 6-, 7-, 8- and 9-bit character length
17.1
Block Diagram
Figure 17-1. USART Block Diagram
Peripheral Data Controller
Receiver
Channel
Transmitter
Channel
Control Logic
Interrupt Control
Baud Rate Generator
Receiver
Transmitter
AMBA
ASB
APB
USxIRQ
MCK
MCK/8
RXD
TXD
SCK
USART Channel
Baud Rate Clock
PIO:
Parallel
I/O
Controller
Содержание AT91FR40162S
Страница 180: ...180 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary Figure 19 2 MCKO Relative to NRST NRST tD MCKO...
Страница 195: ...195 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary 20 5 2 CE Controlled Figure 20 15 CE Controlled...
Страница 204: ...204 6174B ATARM 07 Nov 05 AT91FR40162S Preliminary 23 AT91FR40162S Errata There is no known errata for the AT91FR40162S...