DS87C530/DS83C530 EPROM/ROM Microcontrollers with Real-Time Clock

DS83C530 ROM Verification

The DS83C530 memory contents can be verified using a standard EPROM programmer. The memory address to be verified is placed on the pins shown in Figure 7, and the programming control pins are set to the levels shown in Table 9. The data at that location is then asserted on port 0.

DS83C530 Signature

The Signature bytes identify the DS83C530 to EPROM programmers. This information is at programming addresses 30h, 31h, and 60h. Because Mask ROM devices are not programmed in device programmers, most designers will find little use for the feature, and it is included only for compatibility.

ADDRESS

VALUE

MEANING

 

 

 

30h

DAh

Manufacturer

31h

31h

Model

60h

01h

Extension

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