upd78f0114m6gb-8es Renesas Electronics Corporation., upd78f0114m6gb-8es Datasheet - Page 199

• Manufacturer Part Number: upd78f0114m6gb-8es
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

8.4.3 Carrier generator mode operation (8-bit timer H1 only)
and the carrier pulse is output from the TOH1 output.
(1) Carrier generation
(2) Carrier output control
The carrier clock generated by 8-bit timer H1 is output in the cycle set by 8-bit timer/event counter 51.
In carrier generator mode, the output of the 8-bit timer H1 carrier pulse is controlled by 8-bit timer/event counter 51,
In carrier generator mode, 8-bit timer H compare register 01 (CMP01) generates a low-level width carrier pulse
waveform and 8-bit timer H compare register 11 (CMP11) generates a high-level width carrier pulse waveform.
Rewriting the CMP11 register during 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 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 8 8-BIT TIMERS H0 AND H1
User’s Manual U16227EJ3V0UD
NRZB1 Bit
0
1
0
1
Low-level output
High-level output
Low-level output
Carrier pulse output
Output
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