HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 287
HD64F7050
Manufacturer Part Number
HD64F7050
Description
32-Bit RISC Microcomputer SuperH RISC engine Family/
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD64F7050.pdf
(841 pages)
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10.2.10 Down-Count Start Register (DSTR)
The down-count start register (DSTR) is an 8-bit register. The ATU has one DSTR register in
channel 10.
Note:
DSTR is an 8-bit readable/writable register that starts and stops the channel 10 down-counter
(DCNT).
When the one-shot pulse function is used, a value of 1 can be set in a DST10 bit at any time by the
user program. The DST10 bits are cleared to 0 automatically when the DCNT value underflows.
When the offset one-shot pulse function is used, a DST10 bit is automatically set to 1 when a
compare-match occurs between the channel 1 or 2 free-running counter (TCNT) and a general
register (GR) while the corresponding timer connection register (TCNR) bit is set to 1. The bit is
automatically cleared to 0 when the DCNT value underflows. A value of 1 can be set in a DST10
bit at any time by the user program.
DSTR is initialized to H'00 by a power-on reset, and in hardware standby mode and software
standby mode.
For details, see sections 10.3.5, One-Shot Pulse Function, and 10.3.6, Offset One-Shot Pulse
Function.
Initial value:
* Only 1 can be written.
R/W:
Bit:
DST10H DST10G DST10F DST10E DST10D DST10C DST10B DST10A
R/W *
7
0
R/W *
6
0
R/W *
5
0
R/W *
4
0
Rev. 5.00 Jan 06, 2006 page 267 of 818
Section 10 Advanced Timer Unit (ATU)
R/W *
3
0
R/W *
2
0
REJ09B0273-0500
R/W *
1
0
R/W *
0
0
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