mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 736

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

Communication Processor Module
16.9.20 The SCC2 in IrDA Mode
IrDA is a family of specifications intended to facilitate the interconnection of computers and
peripherals using a directed half duplex serial infrared physical communications medium.
The infrared data association (IrDA) physical layer standard version 1.1 specifies three
modes of operation, each one with a distinct modulation scheme and signaling rate.
13. Program the transmit and receive control character tables.
14. Initialize all RX buffer descriptors.
15. Initialize all TX buffer descriptors.
16. Clear the SCCE–ASYNC HDLC register by writing 0xFFFF to it.
17. Program the SCCM–ASYNC HDLC register with the proper mask to allow all preferred
18. Program the GSMR_H register.
19. Program the GSMR_L register to asynchronous HDLC mode, but do not turn on the
20. Set the PSMR–SCC ASYNC HDLC appropriately.
21. Turn on the transmitter and receiver in the GSMR_L register by setting the ENT and
• Low-speed—2.4Kb/s to 115.2Kb/s
• Middle-speed—0.576Mb/s or 1.152Mb/s
• High-speed—4Mb/s
interrupts.
transmitter or receiver.
ENR bits.
MPC823
Note: Serial communication controller 3 (SCC3) does not operate in IrDA mode.
SCC2
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 16-91. Serial IrDA Link
MPC823 REFERENCE MANUAL
TXD2
RXD2
Go to: www.freescale.com
IR TRANSMIT
IR RECEIVE
ENCODER/
ENCODER
DECODER
DECODER
MODULE
TRANSDUCER
DRIVER&LED
& RECEIVER
DETECTOR
MODULE
OUTPUT
IR
IR OUT
IR IN
MOTOROLA