Datasheet

Section 12 Programmable Pulse Generator (PPG)
(This function is not available in the H8S/2695)
R01UH0166EJ0600 Rev. 6.00 Page 637 of 1434
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
Section 12 Programmable Pulse Generator (PPG)
(This function is not available in the H8S/2695)
12.1 Overview
The H8S/2633 Group has a built-in programmable pulse generator (PPG) that provides pulse
outputs by using the 16-bit timer-pulse unit (TPU) as a time base. The PPG pulse outputs are
divided into 4-bit groups (group 3 and group 2) that can operate both simultaneously and
independently.
12.1.1 Features
PPG features are listed below.
• 8-bit output data
⎯ Maximum 8-bit data can be output, and output can be enabled on a bit-by-bit basis
• Two output groups
⎯ Output trigger signals can be selected in 4-bit groups to provide up to two different 4-bit
outputs
• Selectable output trigger signals
⎯ Output trigger signals can be selected for each group from the compare match signals of
four TPU channels
• Non-overlap mode
⎯ A non-overlap margin can be provided between pulse outputs
• Can operate together with the data transfer controller (DTC) and DMA controller (DMAC)
⎯ The compare match signals selected as output trigger signals can activate the DTC or
DMAC for sequential output of data without CPU intervention
• Settable inverted output
⎯ Inverted data can be output for each group
• Module stop mode can be set
⎯ As the initial setting, PPG operation is halted. Register access is enabled by exiting module
stop mode