mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 743

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

16.9.20.5 PROGRAMMING MODEL
16.9.20.5.1 SCC2 Infrared Mode Register. The SCC2 serial infrared mode (IRMODE)
register controls the infrared operation mode (low-, middle-, or high speed), the number of
preambles, the loop mode, the full-duplex operation, and the DPLL clock rate.
PA—Number of Preambles
This field determines the number of preambles in a high-speed transmitter. It is valid only in
high-speed mode.
Bits 4, 5 and 12—Reserved
These bits are reserved and must be set to 0.
RXP—RX Polarity
This bit determines the polarity of the received signal.
TXP—TX Polarity
This bit determines the polarity of the transmitted signal.
IRMODE
RESET
FIELD
ADDR
R/W
BIT
0000 = 16 preambles.
0001 = 1 preamble.
•
•
•
1111 = 15 preambles.
0 = Active high polarity. An active high pulse is decoded as 0.
1 = Active low polarity. An active low pulse is decoded as 0.
0 = Active high polarity. An active high pulse is encoded as 0.
1 = Active low polarity. An active low pulse is encoded as 0.
0
1
R/W
PA
0
2
Freescale Semiconductor, Inc.
For More Information On This Product,
3
RESERVED
MPC823 REFERENCE MANUAL
4
R/W
0
Go to: www.freescale.com
5
(IMMR & 0xFFF0000) + 0xA38
RXP
R/W
6
0
TXP
R/W
7
0
8
DCR
R/W
0
9
Communication Processor Module
R/W
FD
10
0
LOOP RES
R/W
11
0
R/W
12
0
13
MOD
R/W
0
14
16-291
R/W
15
EN
0