参数资料
型号: TMS320C542PGE-40
厂商: TEXAS INSTRUMENTS INC
元件分类: 数字信号处理
英文描述: 16-BIT, 100 MHz, OTHER DSP, PQFP144
封装: PLASTIC, QFP-144
文件页数: 45/111页
文件大小: 1467K
代理商: TMS320C542PGE-40
TMS320C54x, TMS320LC54x, TMS320VC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039C – FEBRUARY 1996 – REVISED DECEMBER 1999
39
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
memory-mapped registers
Most ’54x devices have 26 (except ’548 and ’549 have 27) 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 7 gives a list of CPU memory-mapped registers (MMR) common
to all ’54x devices. Table 8 shows additional peripheral MMRs associated with the ’541 devices, Table 9 shows
those associated with the ’545/’546 devices, Table 10 shows those associated with the ’542/’543 devices, and
Table 11 shows those associated with the ’548/’549 devices.
Table 7. Core Processor Memory-Mapped Registers
NAME
ADDRESS
DESCRIPTION
NAME
DEC
HEX
DESCRIPTION
IMR
0
Interrupt mask register
IFR
1
Interrupt flag register
2–5
Reserved for testing
ST0
6
Status register 0
ST1
7
Status register 1
AL
8
Accumulator A low word (15–0)
AH
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 (’548 and ’549 only)
31
1F
Reserved
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