參數(shù)資料
型號: DSP1628
英文描述: TVS 400W 60V BIDIRECT SMA
中文描述: 澄清,串行I /設備的DSP1620/27/28/29 O控制注冊說明
文件頁數(shù): 70/114頁
文件大?。?/td> 804K
代理商: DSP1628
Preliminary Data Sheet
February 1997
DSP1628 Digital Signal Processor
68
Lucent Technologies Inc.
5 Software Architecture
(continued)
Field Descriptions
Table 45. T Field
Table 46. D Field
Table 47.
aT
Field
Table 48. S Field
Table 49. F1 Field
Table 50. X Field
Specifies the addressing of ROM data in two-operand
multiply/ALU instructions. Specifies the high or low half
of an accumulator or the
y
register in one-operand mul-
tiply/ALU instructions.
Specifies the type of instruction.
T
Operation
Format
4
9
9
1
2a
1
1a
7
7
7
7
8
7
7
7
7
10
7
4
3
3
1
2
1
1
5
3a
1
6
1
1
2
3b
9a
1
0000x
00010
00011
00100
00101
00110
00111
01000
01000
01001
01001
01010
01011
01011
01100
01101
01110
01111
1000x
10010
10011
10100
10101
10110
10111
11000
11000
11001
11010
11011
11100
11101
11110
11110
11111
goto JA
Short imm j, k, rb, re
Short imm r0, r1, r2, r3
Y = a1[l]
Z : aT[l]
Y
aT[l] = Y
Bit 0 = 0, aT = R
Bit 0 = 1, aTl = R
Bit 10 = 0, R = a0
Bit 10 = 1, R = a0l
R = IM16
Bit 10 = 0, R = a1
Bit 10 = 1, R = a1l
Y = R
Z : R
do, redo
R = Y
call JA
ifc CON
if CON
Y = y[l]
Z : y[l]
x = Y
y[l] = Y
Bit 0 = 0, branch indirect
Bit 0 = 1, F3 ALU
y = a0 x = X
Cond. branch qualifier
y = a1 x = X
Y = a0[l]
Z : y x = X
Bit 5 = 0, F4 ALU (BMU)
Bit 5 = 1, direct addressing
y = Y x = X
F1
F1
F1
F1
F2
F2
F1
F1
F1
F1
F1
F1
F1
F1
F1
Specifies a destination accumulator.
D
0
1
Register
Accumulator 0
Accumulator 1
Specifies transfer accumulator.
aT
0
1
Register
Accumulator 1
Accumulator 0
Specifies a source accumulator.
S
0
1
Register
Accumulator 0
Accumulator 1
Specifies the multiply/ALU function.
F1
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Operation
aD = p
aD = aS + p
p = x * y
p = x * y
p = x *
y
p = x * y
aD = aS – p
aD = p
aD = aS + p
nop
aD = aS – p
aD = aS | y
aD = aS ^ y
aS & y
aS – y
aD = y
aD = aS + y
aD = aS & y
aD = aS – y
X
Operation
Two-Operand Multiply/ALU
0
1
*
pt++
*
pt++i
One-Operand Multiply/ALU
0
1
aTl, yl
aTh, yh
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