COP8SA-DM National Semiconductor, COP8SA-DM Datasheet - Page 52

• Manufacturer Part Number: COP8SA-DM
• Description: MODULE DEBUGGING FOR COP8SA
• Manufacturer: National Semiconductor

Specifications of COP8SA-DM

• Module/board Type: Debugger Module
• For Use With/related Products: Cop 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *COP8SA-DM

NOTE:
2.8.6
The device has a security feature, when enabled, that prevents external reading of the
OTP program memory. The security bit in the ECON register determines, whether
security is enabled or disabled. If the security feature is disabled, the contents of the
internal EPROM may be read.
If the security feature is enabled, then any attempt to externally read the contents of the
EPROM will result in the value FF Hex being read from all program locations. In
addition, with the security feature enabled, the write operation to the EPROM program
memory and ECON register is inhibited. The ECON register is readable regardless of the
state of the security bit.
If security is being used, it is recommended that all other bits in the ECON register be
programmed first. Then the security bit can be programmed.
2-14
COP8SAx7 MICROCONTROLLER
1. Place data in the 8-bytes of user storage space
2. Place assembly date in 8-bytes of user storage space
3. Place programming date in 8-bytes of user storage space
4. To place data in both memory space (for example, 4F9-4FF) to be read out us-
OTP Security
Not all programmers support the PRG_Date option. Other serialization
schemes are currently being worked on with device programming manufac-
tures. Place contact your device programmer supplier or National for more
information.
Data is 1 2 3 4 5 6 7 8
.USER=0x01 0x02 0x03 m0x04 0x05 0x06 0x07 0x08
Date is in format DD MM YY 00 HH MM SS (all information is
in Hex)
.USER=ASS_DATE
Date is in format DD MM YY 00 HH MM SS (all information is
in Hex)
.USER=PRG_DATE
ing the LAID instruction, and the user storage space
Data is 1 2 3 4 5 6 7 8
.=0x4F9
.BYTE 0x01 0x02 0x03 m0x04 0x05 0x06 0x07 0x08
.USER=0x01 0x02 0x03 m0x04 0x05 0x06 0x07 0x08