HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 305

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

The IMFA bit of channel 3 is set to 1 for increment pulses and the OVF bit of channel 4 is set to 1
for underflows only. The buffer register (BR) set for the buffer operation is transferred to GR upon
compare match A3 (when incrementing) or TCNT4 underflow.
signal (BR to GR)
signal (BR to GR)
Buffer transfer
Buffer transfer
TCNT3
TCNT4
GRA3
IMFA
OVF
GR
GR
Figure 10.37 Undershoot Timing
Figure 10.36 Overshoot Timing
H' 0001
N–1
Set to 1
Set to 1
Buffer transfer performed
H' 0000
Section 10 16-Bit Integrated Timer Pulse Unit (ITU)
Buffer transfer performed
N
N
Underflow
H' FFFF
Rev. 7.00 Jan 31, 2006 page 279 of 658
N + 1
Overflow
H' 0000
N
Flag not set
Flag not set
Buffer transfer
not performed
Buffer transfer
not performed
N–1
REJ09B0272-0700