LM3S3739 Luminary Micro, Inc, LM3S3739 Datasheet - Page 35

• Manufacturer Part Number: LM3S3739
• Description: Lm3s3739 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

1.4.4.4
1.4.5
1.4.5.1
1.4.5.2
June 02, 2008
The LM3S3739 controller includes two I
IC devices over an I
and read) data.
Devices on the I
both sending and receiving data as either a master or a slave, and also supports the simultaneous
operation as both a master and a slave. The four I
Slave Transmit, and Slave Receive.
A Stellaris
Both the I
a transmit or receive operation completes (or aborts due to an error). The I
interrupts when data has been sent or requested by a master.
USB (see page 494 )
Universal Serial Bus (USB) is a serial bus standard designed to allow peripherals to be connected
and disconnected using a standardized interface without rebooting the system.
The LM3S3739 controller supports the USB 2.0 full-speed configuration with Device or USB Host
mode. The specified throughput for a USB 2.0 full-speed controller is 12 Mbps.
System Peripherals
Programmable GPIOs (see page 241)
General-purpose input/output (GPIO) pins offer flexibility for a variety of connections.
The Stellaris
individual GPIO port. The GPIO module is FiRM-compliant (compliant to the ARM Foundation IP
for Real-Time Microcontrollers specification) and supports 14-61 programmable input/output pins.
The number of GPIOs available depends on the peripherals being used (see “Signal Tables” on page
595 for the signals available to each GPIO pin).
The GPIO module features programmable interrupt generation as either edge-triggered or
level-sensitive on all pins, programmable control for GPIO pad configuration, and bit masking in
both read and write operations through address lines. Pins configured as digital inputs are
Schmitt-triggered.
Four Programmable Timers (see page 288)
Programmable timers can be used to count or time external events that drive the Timer input pins.
The Stellaris
block provides two 16-bit timers/counters that can be configured to operate independently as timers
or event counters, or configured to operate as one 32-bit timer or one 32-bit Real-Time Clock (RTC).
Timers can also be used to trigger analog-to-digital (ADC) conversions.
When configured in 32-bit mode, a timer can run as a Real-Time Clock (RTC), one-shot timer or
periodic timer. When in 16-bit mode, a timer can run as a one-shot timer or periodic timer, and can
extend its precision by using an 8-bit prescaler. A 16-bit timer can also be configured for event
capture or Pulse Width Modulation (PWM) generation.
2
®
C master and slave can generate interrupts. The I
I
®
®
2
C module can operate at two speeds: Standard (100 Kbps) and Fast (400 Kbps).
GPIO module is comprised of eight physical GPIO blocks, each corresponding to an
General-Purpose Timer Module (GPTM) contains four GPTM blocks. Each GPTM
2
C bus can be designated as either a master or a slave. Each I
2
C bus. The I
2
C bus supports devices that can both transmit and receive (write
Preliminary
2
C modules that provide the ability to communicate to other
2
C modes are: Master Transmit, Master Receive,
2
C master generates interrupts when
LM3S3739 Microcontroller
2
C slave generates
2
C module supports
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