NS32FX164AV-25 National Semiconductor, NS32FX164AV-25 Datasheet - Page 94

• Manufacturer Part Number: NS32FX164AV-25
• Description: IC IMAGING COMM SGNL PROC PLCC68
• Manufacturer: National Semiconductor

Specifications of NS32FX164AV-25

• Processor Type: Advanced Imaging/Communications Signal Processor SIAP™
• Speed: 50MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Other names: *NS32FX164AV-25; Q1284286

Mnemonic
ABSi
ACBi
ADDi
ADDCi
ADDPi
ADDQi
ADDR
ADJSPi
ANDi
ASHi
Bcond
BICi
Appendix B Instruction Execution Times
TEX Calculation
Operand 1 is in a register operand 2 is in memory This
means that we have to use the table values for the
case
The following parameter values are obtained from Table B-2
and the equations in the previous sections
TEA2 (Absolute Mode)
TOPD (Memory Write)
Tf
TCY
TPR
From the FPU Execution Timing table in the NS32181 data
sheet we get a TFPU for MOVLF of 19 clock cycles
The higher value between TPR and TFPU
total execution time in clock cycles is
EXAMPLE 2
Calculate TEX for the instruction MULF 20(R0) 4(10(FP))
Assumptions
The FPU being used is the NS32181
20(R0) is an aligned read with one wait state
10(FP) is an aligned read with no wait states
4(10 (FP)) is an unaligned rmw with two wait states
e
e
e
TEX
4
32
TEA2
e
TEA2
a
TEA1
6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
a
e
TOPD
4
e
e
a
7 (Operand aligned no waits)
4
6
TEA2
a
e
1
1
1
1
1
1
1
1
1
1
1
TF
10
a
TCY
TOPB
1
a
a
22
3 is 22 The
TABLE B-1 Basic Instructions
e
65
k
TOPW
FM
l
94
TOPD
TEX Calculation
Operand 1 and operand 2 are both in memory Therefore
the table values for the
The parameter values obtained from Table B-2 and the
equations in the previous sections are as follows
TEA1
TEA2
TOPD
TOPD
T
TCY
TPR
From the FPU Execution Timing Table in the NS32181 data
sheet we get a TFPU for MULF of 33 clock cycles
The higher value between TPR and TFPU
total execution time in clock cycles is
1
f
(Continued)
TEX
36
e
e
e
e
4
1
2
5
e
22
0
(Register Relative Mode)
(Memory Relative Mode)
(TOPD
(Read from GEN1)
Aligned One Wait)
(RMW from GEN2)
ligned Two Waits)
a
TEA1
15
TOPi
2
2
2
2
3
1
3
1
3
3
2
1
3
1
2
3
1
a
9
e
a
28
a
TEA2
7 (Operand Aligned No Wait))
17
a
L
a
(22
k
TOPD
MM
e
14
l
e
15%20
17%22
11
6%10
28)
TCY
1
case must be used
18
16
16
18
a
9
8
3
4
4
3
4
4
6
4
2
3
6
3
4
4
7
3
4
4
a
7
e
a
TOPD
e
6
45
a
36
5
e
8
e
2
17 (Operand Una-
2
133
a
a
e
SCR
SCR
k
k
k
k
k
k
k
k
k
k
No Carry
Carry
k
k
k
k
k
k
k
no branch
branch
k
k
k
a
3 T
TOPD
M
M
R
R
xM
MR
RR
xM
MR
RR
M
R
xM
xR
xM
MR
RR
xM
MR
RR
3 is 36 The
9 (Operand
l
l
l
l
l
l
l
f
Notes
l
l
l
l
l
k
l
l
l
l
l
l
l
l
l
a
140
no branch
branch
no branch
branch
0
0
TCY
e
a
15