Chapter 17, Uart and sir encoder, Introduction – Cirrus Logic EP73xx User Manual
Page 147: Features, Uart and sir encoder register list, Programming example, Chapter 17. uart and sir encoder, Table 17-1: uart and sir encoder registers -1, Chapter 17 17 uart and sir encoder introduction
EP7309/11/12 User’s Manual - DS508UM4
17-1
Copyright Cirrus Logic, Inc. 2003
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Chapter 17
17
UART and SIR Encoder
Introduction
The EP73xx provides three asynchronous interfaces: two Universal Asynchronous
Receiver/Transmitter (UART) and one SIR encoder. The SIR (IrDA) encoder shares
resources with one of the UARTs.
This provides resources for bi-directional communication with external IrDA
compliant devices as well as PCs for debugging and basic communication.
Features
• UART1 with additional modem control signals
• UART2 with standard Tx/Rx interface
• Programmable bit rates, data length, and control bits.
• SIR Encoder (Shared resources with UART1)
UART and SIR Encoder Register List
Programming Example
;************************************************************************
; Enable UART1 for Baud Rate = 115200, no parity 1 stop bit 8 data bits
;************************************************************************
UART1
EQU
0x70001 ; Value for above settings
UART1EN
EQU
0x100 ; Set UART1EN in SYSCON1
Table 17-1: UART and SIR Encoder Registers
Address
Name
Type
Size
Description
Page
0x8000.0480
UARTDR1
R/W
16
UART1 Data Register
0x8000.1480
UARTDR2
R/W
32
UART1 Control
Register
0x8000.04C0
UBRLCR1
R/W
16
UART2 Data Register
0x8000.14C0
UBRLCR2
R/W
32
UART2 Control
Register