Analog Devices ADSP-21261 SHARC Hardware Reference Manual page 623

A REGISTERS REFERENCE
The ADSP-2126x processor has general-purpose and dedicated registers in
each of its functional blocks. The register reference information for each
functional block includes bit definitions, initialization values, and mem-
ory-mapped addresses (for IOP registers). Information on each type of
register is available at:
• "Core Registers" on page A-2
• "I/O Processor Registers" on page A-62
When writing programs, it is often necessary to set, clear, or test bits in
the processor's registers. While these bit operations can all be done by
referring to the bit's location within a register or (for some operations) the
register's address with a hexadecimal number, it is much easier to use sym-
bols that correspond to the bit's or register's name. For convenience and
consistency, Analog Devices provides a header file that provides these bit
and registers definitions. CrossCore Embedded Studio provides proces-
sor-specific header files in the
is provided with VisualDSP++ tools and can be found in the
alDSP/2126x/include

Many registers have reserved bits. When writing to a register, pro-
grams may only clear (write zero to) the register's reserved bits.
ADSP-2126x SHARC Processor Hardware Reference
SHARC/include
directory.
directory. An
#include
Visu-
file
A-1