MAXQ61H Maxim, MAXQ61H Datasheet - Page 12

• Manufacturer Part Number: MAXQ61H
• Description: The MAXQ61H is a low-power, 16-bit MAXQ® microcontroller designed for low-power applications including universal remote controls, consumer electronics, and white goods
• Manufacturer: Maxim

16-Bit Microcontroller with Infrared Module
Figure 1. IR Transmit Frequency Shifting Example (IRCFME = 0)
Figure 2. IR Transmit Carrier Generation and Carrier Modulator Control
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CARRIER OUTPUT
______________________________________________________________________________________
IR INTERRUPT
IRTXPOL = 1
IRTXPOL = 0
IRDATA
IRMT
IRCA
(IRV)
IRTX
IRTX
IRCLK
0
IRCA = 0202h
IRMT = 3
1
IRCAH + 1
CARRIER GENERATION
3
IRCAL + 1
2
1
IRCA = 0002h
IRMT = 5
IRDATA
IRMT
0
IRCA, IRMT, IRDATA SAMPLED AT END OF IRV
DOWNCOUNT INTERVAL
CARRIER
5
4
IRCFME
0
0
1
3
2
CARRIER MODULATION
1
IRV = 0000h
IRDATA ON
0
SAMPLE
IRTXPOL
IR INTERRUPT
0
1
IRTX PIN