HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 357

• Manufacturer Part Number: HD64F7050
• Description: 32-Bit RISC Microcomputer SuperH RISC engine Family/
• Manufacturer: RENESAS [Renesas Technology Corp]

Starting a Count with a Down-Counter Value of H'0000: A one-shot pulse will not be output if
the down-count start register (DSTR) is set and the down-counter (DCNT) count started from the
CPU, or the timer connection register (TCNR) is set and DCNT is started by a channel 1 or
channel 2 compare-match, when the DCNT value is H'0000. However, the OSF bit in the timer
status register (TSR) will be set to 1.
The timing in this case is shown in figure 10.61
Figure 10.61 Starting a Count with a Down-Counter Value of H'0000
Internal write signal
DCNT input clock
(one-shot pulse)
Port output
DCNT
DSTR
TSR
CK
1 written
to DST
bit in
DSTR
H'0000
Rev. 5.00 Jan 06, 2006 page 337 of 818
Section 10 Advanced Timer Unit (ATU)
Remains unchanged at 0
H'0000
REJ09B0273-0500