Overview Of 8/16-Bit Ppg Timer - Fujitsu F2MC-16LX Hardware Manual

CHAPTER 17 8/16-BIT PPG TIMER
17.1

Overview of 8/16-bit PPG Timer

The 8/16-bit PPG timer provides the PPG output via the pulse output according to the
timer operation with the 8-bit reload timer module.
It has the following as a hardware.
• Six 8-bit down counters
• Twelve 8-bit reload timers
• Three 16-bit control registers
• Six external pulse output terminals
• Six interrupt outputs.
Further, the MB90330 series provides 6 channels as the 8-bit PPG that also operate as
the 16-bit PPG (3 channels) in the combination of PPG0 + PPG1/PPG2 + PPG3/PPG4 +
PPG5.
Overview of 8/16-bit Timer PPG Timer
Overview of 8/16-bit PPG timer function is shown below.
8-PPG power output six channel independent operation mode
Independent 6-channel PPG output operation is enabled.
16-bit PPG output operation mode
The 3-channel and 16-bit PPG output operation is enabled.
Combination of PPG0 + PPG1, PPG2 + PPG3, and PPG4 + PPG5 are used.
8 + 8-bit PPG output operation mode
When the PPG0 (PPG2/PPG4) output is clock-input of PPG1 (PPG3/PPG5), the 8-bit PPG output in an
arbiter cycle is enabled.
PPG output operation
Pulse waves in an arbiter cycle and of duty ratio are output.
Reference:
Only the PPG1 can be used for the interrupt trigger of AD converter.
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