MC68EN360AI25VL Freescale, MC68EN360AI25VL Datasheet - Page 173

• Manufacturer Part Number: MC68EN360AI25VL
• Manufacturer: Freescale

Specifications of MC68EN360AI25VL

• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 25MHz
• Instruction Set Architecture: RISC
• Operating Supply Voltage (max): 3.3V
• Operating Supply Voltage (min): 2.7V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 240
• Package Type: FQFP
• Lead Free Status / RoHS Status: Compliant

The first column is the value passed to the subroutine, the second column is the value
expected by the table instruction, and the third column is the result returned by the subrou-
tine.
The following value has been calculated for independent variable X:
Since X is an 8-bit value, the upper four bits are used as a table offset, and the lower four
bits are used as an interpolation fraction. The following results are obtained from the sub-
routine:
Thus, Y is calculated as follows:
Y = 80
If the 8-bit value for X were used directly by the table instruction, interpolation would be in-
correctly performed between entries 0 and 1. Data must be shifted to the left four places be-
fore use:
LSL.W #4, Dx
31
Table Entry Offset
Interpolation Fraction
(13 (64 – 80)) / 16 = 67
NOT USED
Table 5-15. T8-Bit Independent Variable Entries
Freescale Semiconductor, Inc.
Dx [4:7] = $B = 11
For More Information On This Product,
(Subroutine)
Dx [0:3] = $D = 13
10
11
12
13
14
15
16
X
0
1
2
3
4
5
6
7
8
9
MC68360 USER’S MANUAL
Go to: www.freescale.com
(Instruction)
16
1024
1280
1536
1792
2048
2304
2560
2816
3072
3328
3584
3840
4096
256
512
768
X
0
15
0
0
0
0
112
128
112
0
16
32
48
64
80
96
96
80
64
48
32
16
Y
0
0
0
0
0
1
0
1
1
1
1
CPU32+
0
0
1