參數(shù)資料
型號(hào): TMS320F241PGS
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 數(shù)字信號(hào)處理
英文描述: 0-BIT, 5 MHz, OTHER DSP, PQFP64
封裝: PLASTIC, QFP-64
文件頁(yè)數(shù): 86/122頁(yè)
文件大?。?/td> 1465K
代理商: TMS320F241PGS
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TMS320F243, TMS320F241
DSP CONTROLLERS
SPRS064D DECEMBER 1997 REVISED FEBRUARY 2006
66
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
instruction set summary (continued)
Table 19. TMS320x24x Opcode Symbols
SYMBOL
DESCRIPTION
A
Address
ACC
Accumulator
ACCB
Accumulator buffer
ARx
Auxiliary register value (0 7)
BITx
4-bit field that specifies which bit to test for the BIT instruction
BMAR
Block-move address register
DBMR
Dynamic bit-manipulation register
I
Addressing-mode bit
II...II
Immediate operand value
INTM
Interrupt-mode flag bit
INTR#
Interrupt vector number
K
Constant
PREG
Product register
PROG
Program memory
RPTC
Repeat counter
SHF, SHFT
3/4-bit shift value
TC
Test-control bit
T P
Two bits used by the conditional execution instructions to represent the conditions TC, NTC, and BIO.
T P
Meaning
0 0
BIO low
0 1
TC = 1
1 0
TC = 0
1 1
None of the above conditions
TREGn
Temporary register n (n = 0, 1, or 2)
Z L V C
4-bit field representing the following conditions:
Z:
ACC = 0
L:
ACC < 0
V:
Overflow
C:
Carry
A conditional instruction contains two of these 4-bit fields. The 4-LSB field of the instruction is a 4-bit mask field. A 1 in the
corresponding mask bit indicates that the condition is being tested. The second 4-bit field (bits 4 7) indicates the state of
the conditions designated by the mask bits as being tested. For example, to test for ACC
≥ 0, the Z and L fields are set while
the V and C fields are not set. The next 4-bit field contains the state of the conditions to test. The Z field is set to indicate
testing of the condition ACC = 0, and the L field is reset to indicate testing of the condition ACC
≥ 0. The conditions possible
with these 8 bits are shown in the BCND and CC instructions. To determine if the conditions are met, the 4-LSB bit mask
is ANDed with the conditions. If any bits are set, the conditions are met.
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