LM3S1439_16 Datasheet, PDF (210/699 Pages) Texas Instruments – Stellaris LM3S1439 Microcontroller

System Control
Register 17: Device Capabilities 4 (DC4), offset 0x01C
This register provides a list of features available in the system. The Stellaris family uses this register
format to indicate the availability of the following family features in the specific device: Ethernet MAC
and PHY, GPIOs, and CCP I/Os. The format of this register is consistent with the RCGC2, SCGC2,
and DCGC2 clock control registers and the SRCR2 software reset control register.
Device Capabilities 4 (DC4)
Base 0x400F.E000
Offset 0x01C
Type RO, reset 0x0000.00FF
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
GPIOH GPIOG GPIOF GPIOE GPIOD GPIOC GPIOB GPIOA
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
1
1
1
1
1
1
1
1
Bit/Field
31:8
7
6
5
4
3
2
1
0
Name
reserved
GPIOH
GPIOG
GPIOF
GPIOE
GPIOD
GPIOC
GPIOB
GPIOA
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
1
1
1
1
1
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.
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.
GPIO Port F Present
When set, indicates that GPIO Port F is present.
GPIO Port E Present
When set, indicates that GPIO Port E is present.
GPIO Port D Present
When set, indicates that GPIO Port D is present.
GPIO Port C Present
When set, indicates that GPIO Port C is present.
GPIO Port B Present
When set, indicates that GPIO Port B is present.
GPIO Port A Present
When set, indicates that GPIO Port A is present.
210
July 15, 2014
Texas Instruments-Production Data