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Customer Information Fields in the ROM
7-7
Customer Information
7.2 Customer Information Fields in the ROM
In those cases where the customer code is programmed by Texas
Instruments, some registration of the code-release is provided within the
ROM. This information appears as 7 distinct fields within the ROM test-area.
The ROM test-area extends from address 0x0000 to 0x07FF. The
code-release information is stored in locations 0x0006 through 0x000C.
Assuming these addresses are not specifically read-protected by the ROM
security, they are read-accessible to the programmer. The fields appear as
follows:
MSP50C614 EPROM Test-Area
Customer Information Fields
(16-bit wide, the 17
th
bit is ignored)
Address Field Description Example Value
0x0006 Device number 0x0614 (for C614)
0x0007 Mask number (assigned by TI) 0x0005
0x0008 Reserved
0x0009 Customer code version number 0x0001
0x000A Customer code revision number 0x0005 (e.g., version 1.5)
0x000B Year mask generated 0x1999
0x000C Data mask generated (mm/dd) 0x0816 (e.g., 8/16/1999)