Preface
SPRU722C – November 2004 – Revised October 2006
Read This First
This reference guide is applicable for the code and data stored in the on-chip boot
ROM on the TMS320x280x, TMS320x2801x and TMS320x2804x processors. This
includes all flash-based, ROM-based, and RAM-based devices within these families.
The boot ROM is factory programmed with boot-loading software. Boot-mode signals
(general purpose I/Os) are used to tell the bootloader software which mode to use on
power up. The boot ROM also contains standard math tables, such as SIN/COS
waveforms, for use in IQ math related algorithms found in the C28x™ IQMath Library -
A Virtual Floating Point Engine (literature number SPRC087).
This guide describes the purpose and features of the bootloader. It also describes other
contents of the device on-chip boot ROM and identifies where all of the information is
located within that memory.
Notational Conventions
This document uses the following conventions.
•
Hexadecimal numbers are shown with the suffix h or with a leading 0x. For example, the following
number is 40 hexadecimal (decimal 64): 40h or 0x40.
•
Registers in this document are shown in figures and described in tables.
–
Each register figure shows a rectangle divided into fields that represent the fields of the register.
Each field is labeled with its bit name, its beginning and ending bit numbers above, and its
read/write properties below. A legend explains the notation used for the properties.
–
Reserved bits in a register figure designate a bit that is used for future device expansion.
Related Documentation From Texas Instruments
The following documents describe the related devices and related support tools. Copies of these
documents are available on the Internet at www.ti.com. Tip: Enter the literature number in the search box
provided at
www.ti.com
.
Data Manuals —
SPRS230: —
TMS320F2809, F2808, F2806, F2802, F2801, F2801x UCD9501, C2802, C2801 DSPs
contains the pinout, signal descriptions, as well as electrical and timing specifications
for the F280x devices.
SPRS357: —
TMS320F28044 Digital Signal Processor Data Manual
contains the pinout, signal
descriptions, as well as electrical and timing specifications for the F28044 device.
User's Guides —
SPRU051: —
TMS320x28xx, 28xxx Serial Communication Interface (SCI) Reference Guide
describes the
SCI, which is a two-wire asynchronous serial port, commonly known as a UART. The SCI modules
support digital communications between the CPU and other asynchronous peripherals that use the
standard non-return-to-zero (NRZ) format.
SPRU059: —
TMS320x28xx, 28xxx Serial Peripheral Interface (SPI) Reference Guide
describes the SPI -
a high-speed synchronous serial input/output (I/O) port - that allows a serial bit stream of
programmed length (one to sixteen bits) to be shifted into and out of the device at a programmed
bit-transfer rate.
SPRU722C – November 2004 – Revised October 2006
Read This First
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