MC68340AG25E Freescale Semiconductor, MC68340AG25E Datasheet - Page 172

• Manufacturer Part Number: MC68340AG25E
• Description: IC MPU 32BIT 25MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG25E

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• No. Of I/o's: 16
• Cpu Speed: 25MHz
• No. Of Timers: 2
• Embedded Interface Type: UART
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: M683xx
• Core: CPU32
• Maximum Clock Frequency: 25 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Details

First, the results of each TBL are rounded with the TBLS round-to-nearest-even algorithm.
The following values would be returned by TBLS:
Summing, the following result is obtained:
Now, using the same TBL results, the sum is first calculated and then rounded according
to the same algorithm:
Rounding yields:
The second result is preferred. The following code sequence illustrates how addition of a
series of table interpolations can be performed without loss of precision in the intermediate
results:
MOTOROLA
L0:
L1: . . .
TBLSN.B
TBLSN.B
TBLSN.B
ADD.L
ADD.L
ASR.L
BCC.B
ADDQ.B
Dx, Dm
Dm, Dl
#8, Dl
L1
#1, Dl
ea Dx
ea Dx
ea Dl
Freescale Semiconductor, Inc.
For More Information On This Product,
Long addition avoids problems with carry
Move radix point
Fraction MSB in carry
MC68340 USER’S MANUAL
Go to: www.freescale.com
TBL # 1
TBL # 2
TBL # 3
0010 0000 . 0111 0000
0011 1111 . 0111 0000
0000 0001 . 0111 0000
0110 0001 . 0101 0000
0010 0000 .
0011 1111 .
0000 0001 .
0110 0000 .
0110 0001 .
0010 0000 .
0011 1111 .
0000 0001 .
5- 35