Datasheet

MAXQ610
16-Bit Microcontroller with Infrared Module
14 ______________________________________________________________________________________
1
0
0
1
SAMPLE
IRDATA ON
IRV = 0000h
CARRIER MODULATION
CARRIER GENERATION
CARRIERIRCLK
IRCFME
IRCAL + 1IRCAH + 1
IRDATA
IRMT
IRTXPOL
IRTX PIN
IR INTERRUPT
Figure 2. IR Transmit Carrier Generation and Carrier Modulator Control
CARRIER OUTPUT
(IRV)
IRDATA
IR INTERRUPT
01
IRMT = 3
0
IRTX
IRTXPOL = 1
IRTX
IRTXPOL = 0
IRCA
IRMT IRMT = 5
IRCA = 0202h IRCA = 0002h
IRCA, IRMT, IRDATA SAMPLED AT END OF IRV
DOWNCOUNT INTERVAL
3120543210
Figure 1. IR Transmit Frequency Shifting Example (IRCFME = 0)