r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 812

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 12 Programmable Pulse Generator (PPG)
12.4
Figure 12.2 shows an overview diagram of the PPG. PPG pulse output is enabled when the
corresponding bits in P1DDR, P2DDR, and NDER are set to 1. An initial output value is
determined by its corresponding PODR initial setting. When the compare match event specified
by PCR occurs, the corresponding NDR bit contents are transferred to PODR to update the output
values. Sequential output of data of up to 16 bits is possible by writing new output data to NDR
before the next compare match.
Rev. 1.00 Sep. 19, 2008 Page 784 of 1270
REJ09B0466-0100
Pulse output pin
Operation
Figure 12.2 Overview Diagram of PPG
DDR
Normal output/inverted output
Q
NDER
Q
PODR
C
Output trigger signal
D
Q
NDR
D
Internal data bus