SM320VC5510A-EP Datasheet, PDF (29/82 Pages) Texas Instruments – SM320VC5510A-EP Fixed-Point Digital Signal Processor

Functional Overview
3.3 CPU Register Description
The 5510 CPU registers are shown in Table 3−9. For code compatibility, many TMS320C55x (C55x) CPU
registers map to comparable TMS320C54x (C54x) CPU register addresses. The corresponding
TMS320C54x (C54x) CPU registers are indicated in these instances.
C54X
REGISTER
IMR
IFR
−
−
−
−
ST0
ST1
AL
AH
AG
BL
BH
BG
TREG
TRN
AR0
AR1
AR2
AR3
AR4
AR5
AR6
AR7
SP
BK
BRC
RSA
REA
PMST
XPC
−
−
−
−
−
VC5510
REGISTER
IER0
IFR0
ST0_55
ST1_55
ST3_55
−
ST0
ST1
AC0L
AC0H
AC0G
AC1L
AC1H
AC1G
T3
TRN0
AR0
AR1
AR2
AR3
AR4
AR5
AR6
AR7
SP
BK03
BRC0
RSA0L
REA0L
PMST
XPC
−
T0
T1
T2
T3
Table 3−9. CPU Registers
WORD ADDRESS
(HEX)
00
DESCRIPTION
Interrupt Mask Register 0
01
Interrupt Flag Register 0
02
Status Register 0 for C55x
03
Status Register 1 for C55x
04
Status Register 3 for C55x
05
Reserved
06
Status Register ST0 (for 54x compatibility)
07
Status Register ST1 (for 54x compatibility)
08
09
Accumulator 0 (equivalent to Accumulator A on C54x)
0A
0B
0C
Accumulator 1 (equivalent to Accumulator A on C54x)
0D
0E
Temporary Register
0F
Transition Register
10
Auxiliary Register 0
11
Auxiliary Register 1
12
Auxiliary Register 2
13
Auxiliary Register 3
14
Auxiliary Register 4
15
Auxiliary Register 5
16
Auxiliary Register 6
17
Auxiliary Register 7
18
Stack Pointer Register
19
Circular Buffer Size Register
1A
Block Repeat Counter
1B
Block Repeat Start Address
1C
Block Repeat End Address
1D
Processor Mode Status Register
1E
Program Counter Extension Register
1F
Reserved
20
Temporary Data Register 0
21
Temporary Data Register 1
22
Temporary Data Register 2
23
Temporary Data Register 3
TMS320C54x and C54x are trademarks of Texas Instruments.
August 2003 − Revised November 2003
SGUS045A
21