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MMPF0200 Datasheet(PDF) 88 Page - NXP Semiconductors |
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MMPF0200 Datasheet(HTML) 88 Page - NXP Semiconductors |
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88 / 114 page ![]() 88 NXP Semiconductors PF0200 FUNCTIONAL BLOCK REQUIREMENTS AND BEHAVIORS 6.5.5 Specific registers 6.5.5.1 ic and Version Identification The IC and other version details can be read via identification bits. These are hard-wired on chip and described in Tables 113 to 115. 6.5.5.2 Embedded memory There are four register banks of general purpose embedded memory to store critical data. The data written to MEMA[7:0], MEMB[7:0], MEMC[7:0], and MEMD[7:0] is maintained by the coin cell when the main battery is deeply discharged, removed, or contact-bounced. The contents of the embedded memory are reset by COINPORB. The banks can be used for any system need for bit retention with coin cell backup. Table 113. Register DEVICEID - ADDR 0x00 Name Bit # R/W Default Description DEVICEID 3:0 R 0x01 Die version. 0001 = PF0200 UNUSED 7:4 – 0x01 Unused Table 114. Register SILICON REV- ADDR 0x03 Name Bit # R/W Default Description METAL_LAYER_REV 3:0 R XX Represents the metal mask revision Pass 0.0 = 0000 . . Pass 0.15 = 1111 FULL_LAYER_REV 7:4 R XX Represents the full mask revision Pass 1.0 = 0001 . . Pass 15.0 = 1111 Notes 75. Default value depends on the silicon revision. Table 115. Register FABID - ADDR 0x04 Name Bit # R/W Default Description FIN 1:0 R 0x00 Allows for characterizing different options within the same reticule FAB 3:2 R 0x00 Represents the wafer manufacturing facility Unused 7:0 R 0x00 Unused Table 116. Register MEMA ADDR 0x1C Name Bit # R/W Default Description MEMA 7:0 R/W 0 Memory bank A Table 117. Register MEMB ADDR 0x1D Name Bit # R/W Default Description MEMB 7:0 R/W 0 Memory bank B |
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