LM3S5D91 Datasheet, PDF (245/1340 Pages) Texas Instruments – Stellaris® LM3S5D91 Microcontroller

Stellaris^® LM3S5D91 Microcontroller
Register 20: Device Capabilities 4 (DC4), offset 0x01C
This register is predefined by the part and can be used to verify features. If any bit is clear in this
register, the module is not present. The corresponding bit in the RCGC0, SCGC0, and DCGC0
registers cannot be set.
Device Capabilities 4 (DC4)
Base 0x400F.E000
Offset 0x01C
Type RO, reset 0x0004.F1FF
31
30
29
28
Type RO
Reset
0
15
CCP7
Type RO
Reset
1
RO
0
14
CCP6
RO
1
RO
0
13
UDMA
RO
1
RO
0
12
ROM
RO
1
27
26
25
24
23
22
21
20
19
18
17
16
reserved
PICAL
reserved
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
0
0
0
0
0
0
0
0
0
1
0
0
11
10
9
reserved
RO
RO
RO
0
0
0
8
GPIOJ
RO
1
7
GPIOH
RO
1
6
GPIOG
RO
1
5
GPIOF
RO
1
4
GPIOE
RO
1
3
GPIOD
RO
1
2
GPIOC
RO
1
1
GPIOB
RO
1
0
GPIOA
RO
1
Bit/Field
31:19
18
17:16
15
14
13
12
11:9
8
7
6
Name
reserved
PICAL
reserved
CCP7
CCP6
UDMA
ROM
reserved
GPIOJ
GPIOH
GPIOG
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
1
0
1
1
1
1
0
1
1
1
Description
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.
PIOSC Calibrate
When set, indicates that the PIOSC can be calibrated.
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.
CCP7 Pin Present
When set, indicates that Capture/Compare/PWM pin 7 is present.
CCP6 Pin Present
When set, indicates that Capture/Compare/PWM pin 6 is present.
Micro-DMA Module Present
When set, indicates that the micro-DMA module present.
Internal Code ROM Present
When set, indicates that internal code ROM is present.
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.
GPIO Port J Present
When set, indicates that GPIO Port J is present.
GPIO Port H Present
When set, indicates that GPIO Port H is present.
GPIO Port G Present
When set, indicates that GPIO Port G is present.
January 22, 2012
245
Texas Instruments-Production Data