HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 557

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Contention between Overflow/Underflow and Counter Clearing: If overflow/underflow and
counter clearing occur simultaneously, the TCFV/TCFU flag in TSR is not set and TCNT clearing
takes precedence.
Figure 10.56 shows the operation timing when a TGR compare match is specified as the clearing
source, and H'FFFF is set in TGR.
Figure 10.56 Contention between Overflow and Counter Clearing
TCNT input
clock
TCNT
Counter
clear signal
TGF
TCFV flag
φ
H'FFFF
Prohibited
Rev.4.00 Sep. 07, 2007 Page 527 of 1210
H'0000
REJ09B0245-0400