UPD78F0535GB(T)-UEU-A NEC, UPD78F0535GB(T)-UEU-A Datasheet - Page 287
UPD78F0535GB(T)-UEU-A
Manufacturer Part Number
UPD78F0535GB(T)-UEU-A
Description
8BIT MCU, 60K FLASH, 3KB RAM, LQFP
Manufacturer
NEC
Datasheet
1.UPD78F0535GBT-UEU-A.pdf
(773 pages)
Specifications of UPD78F0535GB(T)-UEU-A
Controller Family/series
UPD78
No. Of I/o's
55
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
60KB
Oscillator Type
External, Internal
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9.4.3 Carrier generator operation (8-bit timer H1 only)
controller, and the 8-bit timer/event counter 51 is used to generate an infrared remote control signal (time count).
51, and the carrier pulse is output from the TOH1 output.
(1) Carrier generation
(2) Carrier output control
In the carrier generator mode, the 8-bit timer H1 is used to generate the carrier signal of an infrared remote
The carrier clock generated by the 8-bit timer H1 is output in the cycle set by the 8-bit timer/event counter 51.
In carrier generator mode, the output of the 8-bit timer H1 carrier pulse is controlled by the 8-bit timer/event counter
In carrier generator mode, the 8-bit timer H compare register 01 (CMP01) generates a low-level width carrier
pulse waveform and the 8-bit timer H compare register 11 (CMP11) generates a high-level width carrier pulse
waveform.
Rewriting the CMP11 register during the 8-bit timer H1 operation is possible but rewriting the CMP01 register is
prohibited.
Carrier output is controlled by the interrupt request signal (INTTM51) of the 8-bit timer/event counter 51 and the
NRZB1 and RMC1 bits of the 8-bit timer H carrier control register (TMCYC1). The relationship between the
outputs is shown below.
RMC1 Bit
0
0
1
1
CHAPTER 9 8-BIT TIMERS H0 AND H1
NRZB1 Bit
User’s Manual U17260EJ6V0UD
0
1
0
1
Low-level output
High-level output at rising edge of
INTTM51 signal input
Low-level output
Carrier pulse output at rising edge of
INTTM51 signal input
Output
287
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