LM3S101-CRN20-XNPP ETC1 [List of Unclassifed Manufacturers], LM3S101-CRN20-XNPP Datasheet - Page 95
LM3S101-CRN20-XNPP
Manufacturer Part Number
LM3S101-CRN20-XNPP
Description
Microcontroller
Manufacturer
ETC1 [List of Unclassifed Manufacturers]
Datasheet
1.LM3S101-CRN20-XNPP.pdf
(284 pages)
- Current page: 95 of 284
- Download datasheet (3Mb)
General-Purpose Input/Outputs (GPIOs)
Figure 8-2.
8.2.1
95
Alternate Input
Alternate Output
Alternate Output Enable
Interrupt
Data Register Operation
To aid in the efficiency of software, the GPIO ports allow for the modification of individual bits in the
GPIO Data (GPIODATA) register (see page 100) by using bits [9:2] of the address bus as a mask.
This allows software drivers to modify individual GPIO pins in a single instruction, without affecting
the state of the other pins. This is in contrast to the "typical" method of doing a read-modify-write
operation to set or clear an individual GPIO pin. To accommodate this feature, the GPIODATA
register covers 256 locations in the memory map.
During a write, if the address bit associated with that data bit is set to 1, the value of the
GPIODATA register is altered. If it is cleared to 0, it is left unchanged.
For example, writing a value of 0xEB to the address GPIODATA + 0x098 would yield as shown in
Figure 8-3, where u is data unchanged by write.
Figure 8-3.
GPIOAFSEL
GPIOPeriphID0
GPIOPeriphID1
GPIOPeriphID2
GPIOPeriphID3
GPIODATA
GPIO Port Block Diagram
Selection
GPIOMIS
Function
GPIODIR
Interrupt
GPIOIBE
GPIOIEV
GPIORIS
GPIOICR
GPIOIM
Control
GPIOIS
Data
I/O
Identification Registers
GPIODATA Write Example
GPIOPeriphID4
GPIOPeriphID5
GPIOPeriphID6
GPIOPeriphID7
GPIO Input
GPIO Output
GPIO Output Enable
GPIODR2R
GPIODR4R
GPIODR8R
GPIOODR
GPIOPUR
GPIOPDR
GPIODEN
GPIOSLR
Control
I/O Pad
GPIODATA
GPIOPCellID1
GPIOPCellID3
GPIOPCellID0
GPIOPCellID2
ADDR[9:2]
0x098
D
E
M
U
X
M
U
X
M
U
X
0xEB
Preliminary
Pad Input
Pad Output
Pad Output Enable
0
1
9
u
7
0
1
u
8
6
1
1
7
1
5
0
0
6
u
4
0
1
5
u
3
1
0
4
0
2
1
1
3
1
1
Pad
I/O
0
1
2
u
0
1
0
0
0
March 22, 2006
Package I/O Pin
Related parts for LM3S101-CRN20-XNPP
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
Part Number:
Description:
Microcontroller
Manufacturer:
Luminary Micro, Inc.
Datasheet:
Part Number:
Description:
Microcontroller
Manufacturer:
ETC2 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
14-Bit, 1 GSPS Digital-to-Analog Converter with Standby Mode of Operation
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
A SERIES OF SPECTRAL - RESPONSE SILICON PHOTOCELLS DESIGNED FOR UNIQUE PRODUCT APPLICATIONS
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Mini size of Discrete semiconductor elements
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
3 Watts of Output Power From a Package
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
DTMF Tone Generator
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
SILICON TRIACS
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
N P-Channel Enhancement Mode Enhancement Mode
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Dot Matrix LCD 80-Channel Driver
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Level shifting hot swappable I2C-bus and SMBus bus buffer
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Common Mode Choke Coils for Signal Line SMD
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
Technische Daten Technical Data
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet:
Part Number:
Description:
2-Channel PWM Controller for LCD Bias
Manufacturer:
ETC1 [List of Unclassifed Manufacturers]
Datasheet: