HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 236

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

Section 10 Advanced Timer Unit (ATU)
10.2
10.2.1
The timer start register (TSTR) is a 16-bit register. The ATU has one TSTR register.
TSTR is a 16-bit readable/writable register that starts and stops the free-running counter (TCNT)
in channels 0 to 9.
TSTR is initialized to H'0000 by a power-on reset, and in hardware standby mode and software
standby mode.
Bits 15 to 10—Reserved: These bits are always read as 0, and should only be written with 0.
Bit 9—Counter Start 9 (STR9): Starts and stops free-running counter 9 (TCNT9).
Bit 9:
STR7
0
1
Bit 8—Counter Start 8 (STR8): Starts and stops free-running counter 8 (TCNT8).
Bit 8:
STR8
0
1
Rev. 5.00 Jan 06, 2006 page 216 of 818
REJ09B0273-0500
Initial value:
R/W:
Bit:
Register Descriptions
Timer Start Register (TSTR)
Description
TCNT9 is halted
TCNT9 counts
Description
TCNT8 is halted
TCNT8 counts
15
—
R
0
14
—
R
0
13
—
R
0
12
—
R
0
11
—
R
0
10
—
R
0
STR9 STR8 STR7 STR6 STR5 STR4 STR3 STR2 STR1 STR0
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
9
0
8
0
7
0
6
0
5
0
4
0
3
0
2
0
(Initial value)
(Initial value)
1
0
0
0