LM3S9B81 Datasheet, PDF (462/1155 Pages) Texas Instruments – Stellaris® LM3S9B81 Microcontroller

General-Purpose Timers
Register 13: GPTM Timer A Prescale (GPTMTAPR), offset 0x038
This register allows software to extend the range of the 16-bit timers in periodic and one-shot modes.
In Edge-Count mode, this register is the MSB of the 24-bit count value.
GPTM Timer A Prescale (GPTMTAPR)
Timer0 base: 0x4003.0000
Timer1 base: 0x4003.1000
Timer2 base: 0x4003.2000
Timer3 base: 0x4003.3000
Offset 0x038
Type R/W, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
TAPSR
Type RO
RO
RO
RO
RO
RO
RO
RO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:8
7:0
Name
reserved
TAPSR
Type
RO
R/W
Reset Description
0x0000.00 Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0x00
GPTM Timer A Prescale
The register loads this value on a write. A read returns the current value
of the register.
Refer to Table 11-4 on page 430 for more details and an example.
462
June 29, 2010
Texas Instruments-Advance Information