HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 324

• Manufacturer Part Number: HD6417034B
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 10 16-Bit Integrated Timer Pulse Unit (ITU)
10.6.5
If an overflow occurs in the T3 state of a TCNT write cycle, writing takes priority over counter
incrementing. OVF is set to 1. The same applies to underflows. The timing is shown in figure
10.62.
Rev. 7.00 Jan 31, 2006 page 298 of 658
REJ09B0272-0700
Contention between TCNT Write and Overflow/Underflow
Figure 10.62 Contention between TCNT Write and Overflow
write signal
input clock
Overflow
Address
Internal
TCNT
TCNT
signal
OVF
CK
T1
H'FFFF
TCNT write cycle
TCNT address
T2
TCNT write data
T3
M