LM3S6952 Luminary Micro, Inc, LM3S6952 Datasheet - Page 36

• Manufacturer Part Number: LM3S6952
• Description: Lm3s6952 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Architectural Overview
1.4.4.3
1.4.4.4
1.4.5
1.4.5.1
36
The SSI module can be configured as either a master or slave device. As a slave device, the SSI
module can also be configured to disable its output, which allows a master device to be coupled
with multiple slave devices.
The SSI module also includes a programmable bit rate clock divider and prescaler to generate the
output serial clock derived from the SSI module's input clock. Bit rates are generated based on the
input clock and the maximum bit rate is determined by the connected peripheral.
I
The Inter-Integrated Circuit (I
(a serial data line SDA and a serial clock line SCL).
The I
devices, LCDs, tone generators, and so on. The I
diagnostic purposes in product development and manufacture.
The LM3S6952 controller includes one 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.
Ethernet Controller (see page 417)
Ethernet is a frame-based computer networking technology for local area networks (LANs). Ethernet
has been standardized as IEEE 802.3. It defines a number of wiring and signaling standards for the
physical layer, two means of network access at the Media Access Control (MAC)/Data Link Layer,
and a common addressing format.
The Stellaris® Ethernet Controller consists of a fully integrated media access controller (MAC) and
network physical (PHY) interface device. The Ethernet Controller conforms to IEEE 802.3
specifications and fully supports 10BASE-T and 100BASE-TX standards. In addition, the Ethernet
Controller supports automatic MDI/MDI-X cross-over correction.
System Peripherals
Programmable GPIOs (see page 170)
General-purpose input/output (GPIO) pins offer flexibility for a variety of connections.
The Stellaris
an individual GPIO port. The GPIO module is FiRM-compliant (compliant to the ARM Foundation
IP for Real-Time Microcontrollers specification) and supports 6-43 programmable input/output pins.
The number of GPIOs available depends on the peripherals being used (see “Signal Tables” on page
529 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
2
C (see page 382)
2
C bus interfaces to external I
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 seven physical GPIO blocks, each corresponding to
2
C bus can be designated as either a master or a slave. The I
2
C bus. The I
2
C) bus provides bi-directional data transfer through a two-wire design
2
2
C bus supports devices that can both transmit and receive (write
C devices such as serial memory (RAMs and ROMs), networking
Preliminary
2
C module that provides the ability to communicate to other
2
2
C bus may also be used for system testing and
C modes are: Master Transmit, Master Receive,
2
C master generates interrupts when
2
C slave generates
2
C module supports
July 25, 2008