Digital Signal Processing Reference
In-Depth Information
Registers for Circular Addressing
and Interrupts
A number of special-purpose registers available on the C6x processor are shown in
Figures B.1 to B.8 [1].
1.
Figure B.1 shows the address mode register (AMR) that is used for the cir-
cular mode of addressing. It is used to select one of eight register pointers (A4
through A7, B4 through B7) and two blocks of memories (BK0, BK1) that can
be used as circular buffers.
2.
Figure B.2 shows the control status register (CSR) with bit 0 for the global
interrupt enable (GIE) bit.
3.
Figure B.3 shows the interrupt enable register (IER).
4.
Figure B.4 shows the interrupt flag register (IFR).
5.
Figure B.5 shows the interrupt set register (ISR).
6.
Figure B.6 shows the interrupt clear register (ICR).
7.
Figure B.7 shows the interrupt service table pointer (ISTP).
8.
Figure B.8 shows the serial port control register (SPCR).
In Section 3.7.2 we discuss the AMR register and in Section 3.14 the interrupt
registers.
REFERENCE
1.
C6000 CPU and Instruction Set
, SPRU189F, Texas Instruments, Dallas, TX, 2000.
Search WWH ::
Custom Search