參數(shù)資料
型號: TMS320LC542-40
元件分類: 數(shù)字信號處理
英文描述: Digital Signal Processor
中文描述: 數(shù)字信號處理器
文件頁數(shù): 50/111頁
文件大?。?/td> 1426K
代理商: TMS320LC542-40
TMS320C54x, TMS320LC54x, TMS320VC54x
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS039C – FEBRUARY 1996 – REVISED DECEMBER 1999
50
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
Table 13. ’54x Instruction Set Opcodes (Continued)
MNEMONIC SYNTAX
OPCODE
CYCLES
DESCRIPTION
LSB
MSB
WORDS/
I/O INSTRUCTIONS
PORTR
PA Smem
Read data from port
2/2
0111
0100
IAAA
AAAA
PORTW
Smem, PA
Write data to port
2/2
0111
0101
IAAA
AAAA
LOAD/STORE INSTRUCTIONS
CMPS
src Smem
Compare, select and store maximum
1/1
1000
111S
IAAA
AAAA
DLD
Lmem dst
Long-word load to accumulator
1/1
0101
011D
IAAA
AAAA
DST
src Lmem
Store accumulator in long word
1/2
0100
111S
IAAA
AAAA
LD
Smem dst
Load accumulator with operand
1/1
0001
000D
IAAA
AAAA
LD
Smem
TS
, dst
Shift operand by TREG[5:0], then load into ACC
1/1
0001
010D
IAAA
AAAA
LD
Smem,
16
, dst
Shift operand by 16 bits, then load into ACC
1/1
0100
010D
IAAA
AAAA
LD
Smem[, SHIFT , dst
Shift operand, then load into ACC
(2-word opcode)
2/2
0110
0000
1111
110D
IAAA
010S
AAAA
HIFT
LD
Xmem SHFT dst
Shift operand, then load into ACC
1/1
1001
010D
XXXX
SHFT
LD
#K, dst
Load ACC with short-immediate operand
1/1
1110
100D
KKKK
KKKK
LD
#lk[, SHFT , dst
Shift long-immediate, then load into ACC
2/2
1111
000D
0010
SHFT
LD
#lk
16
, dst
Shift long-immediate 16 bits, load into ACC
2/2
1111
000D
0110
0010
LD
src
ASM
[, dst ]
Shift ACC by value in ASM register
1/1
1111
01SD
1000
0010
LD
src[, SHIFT [, dst ]
Shift accumulator
1/1
1111
01SD
010S
HIFT
LD
Smem,
T
Load TREG with single data-memory operand
1/1
0011
0000
IAAA
AAAA
LD
Smem,
DP
Load DP with single data-memory operand
1/3
0100
0110
IAAA
AAAA
LD
#k9,
DP
Load DP with 9-bit operand
1/1
1110
101K
KKKK
KKKK
LD
#k5,
ASM
Load ACC shift-mode register with 5-bit operand
1/1
1110
1101
000K
KKKK
LD
#k3,
ARP
Load ARP with 3-bit operand
1/1
1111
0100
1010
0KKK
LD
Smem,
ASM
Load operand bits 4–0 into ASM register
1/1
0011
0010
IAAA
AAAA
LD
Xmem dst
|| MAC
[
R
]
Ymem[, dst_ ]
Parallel load, multiply/accumulate [round]
1/1
1010
10RD
XXXX
YYYY
LD
Xmem dst
|| MAS
[
R
]
Ymem , dst_
Parallel load, multiply/subtract [round]
1/1
1010
11RD
XXXX
YYYY
LDM
MMR, dst
Load memory-mapped register to ACC
1/1
0100
100D
IAAA
AAAA
LDR
Smem dst
Load memory value in ACC high with rounding
1/1
0001
011D
IAAA
AAAA
LDU
Smem dst
Load unsigned memory value
1/1
0001
001D
IAAA
AAAA
LTD
Smem
Load TREG and insert delay
1/1
0100
1100
IAAA
AAAA
SACCD
src, Xmem, cond
Store accumulator conditionally
1/1
1001
111S
XXXX
COND
SRCCD
Xmem cond
Store block-repeat counter conditionally
1/1
1001
1101
XXXX
COND
ST T
, Smem
Store TREG
1/1
1000
1100
IAAA
AAAA
ST TRN
, Smem
Store TRN
1/1
1000
1101
IAAA
AAAA
ST
#lk Smem
Store long-immediate operand
2/2
0111
0110
IAAA
AAAA
STH
src Smem
Values for words and cycles assume the use of DARAM for data. Add one word and one cycle when using long-offset indirect addressing or
absolute addressing with a single data-memory operand.
Delayed Instruction
§Condition true
Condition false
Store accumulator high to data memory
1/1
1000
001S
IAAA
AAAA
instruction set summary (continued)
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