
MVME5100 VPD Reference Information
MVME5100 Single Board Computer Programmer’s Reference (6806800H17B)
307
5.
Store the result (single byte) in address 63 as “Checksum.”
The same result can be obtained by adding the binary values in addresses 0-62 and
eliminating all but the low order byte. The low order byte is the “Checksum.”
Table A-6 Example of a Checksum Calculation:
SPD Byte Address
Serial PD
Convert to Decimal
00 (0x00)
0010 0100
>
36
01 (0x01)
1111 1110
>
+254
02 (0x02)
0000 0000
>
+ 0
03 (0x03)
0000 0000
>
+ 0
:
:
:
:
> +
0
>
60 (0x3C)
0000 0000
>
+ 0
61 (0x3D)
0000 0000
>
+ 0
62 (0x3E)
0000 0000
>
+ 0
Decimal
Total
- - 290
Divide by 256
-
-
1
Remainder
- - 34
Convert to binary
0010 0010
<
34
63(0x3F)(Checksum) 0010
0010
-
Summary of Contents for MVME5100
Page 1: ...MVME5100 Single Board Computer Programmer s Reference P N 6806800H17B July 2014...
Page 8: ...MVME5100 Single Board Computer Programmer s Reference 6806800H17B Contents 8 Contents Contents...
Page 16: ...MVME5100 Single Board Computer Programmer s Reference 6806800H17B 16 List of Figures...
Page 292: ...Hawk Programming Details MVME5100 Single Board Computer Programmer s Reference 6806800H17B 292...
Page 312: ...VMEbus Mapping Example MVME5100 Single Board Computer Programmer s Reference 6806800H17B 312...
Page 316: ...Related Documentation MVME5100 Single Board Computer Programmer s Reference 6806800H17B 316...
Page 317: ......