Block Diagram - Hitachi H8S/2338 Series Hardware Manual

8.1.2

Block Diagram

Figure 8-1 shows a block diagram of the PPG.
Compare match signals
PO15
Pulse output
PO14
PO13
pins, group 3
PO12
PO11
Pulse output
PO10
PO9
pins, group 2
PO8
PO7
Pulse output
PO6
PO5
pins, group 1
PO4
PO3
Pulse output
PO2
PO1
pins, group 0
PO0
Legend
PMR : PPG output mode register
PCR : PPG output control register
NDERH : Next data enable register H
: Next data enable register L
NDERL
NDRH : Next data register H
NDRL : Next data register L
PODRH : Output data register H
PODRL : Output data register L
322
Control logic
PODRH
PODRL
Figure 8-1 Block Diagram of PPG
NDERH NDERL
PMR PCR
NDRH
NDRL
Internal
data bus