參數(shù)資料
型號: TMS320LC545
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: Digital Signal Processors(20/25ns指令周期, 高性能,大并行度,特殊指令集可有效實現(xiàn)多種復雜算法及應用的DSP)
中文描述: 數(shù)字信號處理器(20/25ns指令周期,高性能,大并行度,特殊指令集可有效實現(xiàn)多種復雜算法及應用的數(shù)字信號處理器)
文件頁數(shù): 40/107頁
文件大?。?/td> 2149K
代理商: TMS320LC545
TMS320C54x, TMS320LC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039A – FEBRUARY 1996 – REVISED JULY 1997
37
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
memory-mapped registers
All ’C54x/’LC54x devices have 26 memory-mapped CPU registers, which are mapped into data memory located
at addresses 0h to 1Fh. Each of these devices also has a set of memory-mapped registers associated with
peripherals. Table 8 gives a list of CPU memory-mapped registers (MMR) common to all ’C54x/’LC54x devices.
Table 9 shows additional peripheral MMRs associated with the ’C541/’LC541 devices, Table 10 shows those
associated with the ’LC545/’LC546 devices, Table 11 shows those associated with the ’C542/’LC542/’LC543
devices, and Table 12 shows those associated with the ’LC548 devices.
Table 8. Core Processor Memory-Mapped Registers
NAME
ADDRESS
DESCRIPTION
DEC
HEX
IMR
0
0
Interrupt mask register
IFR
1
1
Interrupt flag register
2–5
2–5
Reserved for testing
ST0
6
6
Status register 0
ST1
7
7
Status register 1
AL
8
8
Accumulator A low word (15–0)
AH
9
9
Accumulator A high word (31–16)
AG
10
A
Accumulator A guard bits (39–32)
BL
11
B
Accumulator B low word (15–0)
BH
12
C
Accumulator B high word (31–16)
BG
13
D
Accumulator B guard bits (39–32)
TREG
14
E
Temporary register
TRN
15
F
Transition register
AR0
16
10
Auxiliary register 0
AR1
17
11
Auxiliary register 1
AR2
18
12
Auxiliary register 2
AR3
19
13
Auxiliary register 3
AR4
20
14
Auxiliary register 4
AR5
21
15
Auxiliary register 5
AR6
22
16
Auxiliary register 6
AR7
23
17
Auxiliary register 7
SP
24
18
Stack pointer register
BK
25
19
Circular buffer size register
BRC
26
1A
Block-repeat counter
RSA
27
1B
Block-repeat start address
REA
28
1C
Block-repeat end address
PMST
29
1D
Processor mode status (PMST) register
XPC
30
1E
Extended program counter (’LC548 only)
31
1F
Reserved
A
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