TMS320F datasheet(362/389 Pages) TI

362 / 389 page

Glossary

D-2

auxiliary register arithmetic unit (ARAU):

A 16-bit arithmetic unit used to

increment, decrement, or compare the contents of the auxiliary registers.

Its primary function is manipulating auxiliary register values for indirect

addressing.

auxiliary register pointer (ARP):

A 3-bit field in status register ST0 that

points to the current auxiliary register.

auxiliary register pointer buffer (ARB):

A 3-bit field in status register ST1

that holds the previous value of the auxiliary register pointer (ARP).

B0:

An on-chip block of dual-access RAM that can be configured as either

data memory or program memory, depending on the value of the CNF

bit in status register ST1.

B1:

An on-chip block of dual-access RAM available for data memory.

B2:

An on-chip block of dual-access RAM available for data memory.

BIO pin:

A general-purpose input pin that can be tested by conditional

instructions that cause a branch when an external device drives BIO low.

bit-reversed indexed addressing:

A method of indirect addressing that

allows efficient I/O operations by resequencing the data points in a

radix-2 fast Fourier transform (FFT) program. The direction of carry

propagation in the ARAU is reversed.

boot loader:

A built-in segment of code that transfers code from an external

source to a 16-bit external program destination at reset.

BR:

Bus request pin. This pin is tied to the BR signal, which is asserted when

a global data memory access is initiated.

branch:

A switching of program control to a nonsequential program-

memory address.

TMS320F Datasheet(PDF) 362 Page - Texas Instruments