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TMS320F28069, TMS320F28068, TMS320F28067, TMS320F28066
TMS320F28065, TMS320F28064, TMS320F28063, TMS320F28062
SPRS698F – NOVEMBER 2010 – REVISED MARCH 2016
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TMS320F28069 TMS320F28068 TMS320F28067 TMS320F28066 TMS320F28065
TMS320F28064 TMS320F28063 TMS320F28062
Detailed Description
Copyright © 2010–2016, Texas Instruments Incorporated
6.1.22 Serial Port Peripherals
The devices support the following serial communication peripherals:
SPI:
The SPI is a high-speed, synchronous serial I/O port that allows a serial bit stream
of programmed length (1 to 16 bits) to be shifted into and out of the device at a
programmable bit-transfer rate. Normally, the SPI is used for communications
between the MCU and external peripherals or another processor. Typical
applications include external I/O or peripheral expansion through devices such as
shift registers, display drivers, and ADCs. Multi-device communications are
supported by the master/slave operation of the SPI. The SPI contains a 4-level
receive and transmit FIFO for reducing interrupt servicing overhead.
SCI:
The serial communications interface is a 2-wire asynchronous serial port,
commonly known as UART. The SCI contains a 4-level receive and transmit FIFO
for reducing interrupt servicing overhead.
I
2
C:
The inter-integrated circuit (I
2
C) module provides an interface between a MCU and
other devices compliant with Philips Semiconductors Inter-IC bus ( I
2
C-bus
®
)
specification version 2.1 and connected by way of an I
2
C-bus. External
components attached to this 2-wire serial bus can transmit/receive up to 8-bit data
to or from the MCU through the I
2
C module. The I
2
C contains a 4-level receive-
and-transmit FIFO for reducing interrupt servicing overhead.
eCAN:
This is the enhanced version of the CAN peripheral. The eCAN supports
32 mailboxes, time stamping of messages, and is compliant with ISO11898-1
(CAN 2.0B).
McBSP:
The multichannel buffered serial port (McBSP) connects to E1/T1 lines, phone-
quality codecs for modem applications or high-quality stereo audio DAC devices.
The McBSP receive and transmit registers are supported by the DMA to
significantly reduce the overhead for servicing this peripheral. Each McBSP
module can be configured as an SPI as required.
USB:
The USB peripheral, which conforms to the USB 2.0 specification, may be used as
either a full-speed (12-Mbps) device controller, or a full-speed (12-Mbps) or low-
speed (1.5-Mbps) host controller. The controller supports a total of six user-
configurable endpoints—all of which can be accessed through DMA, in addition to
a dedicated control endpoint for endpoint zero. All packets transmitted or received
are buffered in 4KB of dedicated endpoint memory. The USB peripheral supports
all four transfer types: Control, Interrupt, Bulk, and Isochronous. Because of the
complexity of the USB peripheral and the associated protocol overhead, a full
software library with application examples is provided within controlSUITE™.
