DS2505PTR Dallas Semiconducotr, DS2505PTR Datasheet - Page 6

• Manufacturer Part Number: DS2505PTR
• Description: 16-kbit Add-Only Memory
• Manufacturer: Dallas Semiconducotr

DS2505
The Status Memory address range of the DS2505 extends from 000 to 13FH. The memory locations
008H to 01FH, 028H to 03FH, 048H to 0FFH and 140H to 7FFH are physically not implemented.
Reading these locations will usually result in FFH bytes. Attempts to write to these locations will be
ignored. If the bus master sends a starting address higher than 7FFH, the five most significant address
bits are set to 0s by the internal circuitry of the chip. This will result in a mismatch between the CRC
calculated by the DS2505 and the CRC calculated by the bus master, indicating an error condition.
DS2505 MEMORY MAP Figure 4
STATUS MEMORY MAP
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