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Maxim > App Notes > DIGITAL POTENTIOMETERS
Keywords: DS1863 May 25, 2007
APPLICATION NOTE 4052
Quick Reference Guide to the DS1863 Memory Map
Abstract: The DS1863 burst-mode PON controller with integrated monitoring capabilities has programming options to
configure the alarms, warnings, lookup tables, and other functions. This programmability necessitates a large register
memory map. This application note provides an outline of the register map, which is convenient when programming
the
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Figure 1. Structure of the memory map in the DS1863. Register Reference The following tables provide an easy reference to the Lower Memory and Tables 01h and 02h. For a description of the functionality for each bit, please refer to the corresponding register in the DS1863 data sheet. Tables 03h, 04h, and 05h are lookup tables that do not require a separate reference and, therefore, are not included here. Note: RSVD is an acronym for RESERVED. Page 2 of 6
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Lower Memory Register Name Bit7 Bit0 6 5 4 3 2 1 0 00h S 2 2 2 2 2 2 2 TEMP ALARM HI -1 -2 -3 -4 -5 -6 -7 -8 01h 2 2 2 2 2 2 2 2 6 5 4 3 2 1 0 02h S 2 2 2 2 2 2 2 TEMP ALARM LO -1 -2 -3 -4 -5 -6 -7 -8 03h 2 2 2 2 2 2 2 2 6 5 4 3 2 1 0 04h S 2 2 2 2 2 2 2 TEMP WARN HI -1 -2 -3 -4 -5 -6 -7 -8 05h 2 2 2 2 2 2 2 2 6 5 4 3 2 1 0 06h S 2 2 2 2 2 2 2 TEMP WARN LO -1 -2 -3 -4 -5 -6 -7 -8 07h 2 2 2 2 2 2 2 2 15 14 13 12 11 10 9 8 08h 2 2 2 2 2 2 2 2 V ALARM HI CC 7 6 5 4 3 2 1 0 09h 2 2 2 2 2 2 2 2
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PW2 EE 30h-5Fh EE EE EE EE EE EE EE EE 6 5 4 3 2 1 0 60h S 2 2 2 2 2 2 2 TEMP VALUE -1 -2 -3 -4 -5 -6 -7 -8 61h 2 2 2 2 2 2 2 2 15 14 13 12 11 10 9 8 62h 2 2 2 2 2 2 2 2 V VALUE CC 7 6 5 4 3 2 1 0 63h 2 2 2 2 2 2 2 2 15 14 13 12 11 10 9 8 64h 2 2 2 2 2 2 2 2 MON1 VALUE 7 6 5 4 3 2 1 0 65h 2 2 2 2 2 2 2 2 15 14 13 12 11 10 9 8 66h 2 2 2 2 2 2 2 2 MON2 VALUE 7 6 5 4 3 2 1 0 67h 2 2 2 2 2 2 2 2 15 14 13 12 11 10 9 8 68h 2 2 2 2 2 2 2 2 MON3 VALUE 7 6 5 4 3 2 1 0 69h 2 2 2 2 2 2 2 2 FETG SOFT TX-F S
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Table 02h Bit7 Bit0 MODE 80h SEEB RSVD RSVD RSVD AEN MOD-EN APC-EN BIAS-EN 7 6 5 4 3 2 1 0 T INDEX 81h 2 2 2 2 2 2 2 2 7 6 5 4 3 2 1 0 MOD DAC 82h 2 2 2 2 2 2 2 2 7 6 5 4 3 2 1 0 APC DAC 83h 2 2 2 2 2 2 2 2 12 11 10 9 8 7 84h 0 0 2 2 2 2 2 2 BIAS DAC 7 6 5 4 3 2 1 0 85h 2 2 2 2 2 2 2 2 DEVICE ID 86h 0 1 1 0 0 0 1 1 DEVICE VER 87h DEVICE VERSION UPDATE RATE 86h 0 0 0 0 SR(3:0) SR(3:0) SR(3:0) SR(3:0) CONFIG 89h FETG DIR TX-F EN RSVD ASEL RSVD RSVD RSVD RSVD 12 11 10 9 8 7 6 5 START-UP S
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12 11 10 9 8 7 F8h RSVD RSVD 2 2 2 2 2 2 MAN IBIAS 7 6 5 4 3 2 1 0 F9h 2 2 2 2 2 2 2 2 MAN_CNTL FAh RSVD RSVD RSVD RSVD RSVD RSVD RSVD MAN_CLK Application Note 4052: http://www.maxim-ic.com/an4052 More Information For technical questions and support: http://www.maxim-ic.com/support For samples: http://www.maxim-ic.com/samples Other questions and comments: http://www.maxim-ic.com/contact Related Parts QuickView -- Full (PDF) Data Sheet -- Free Samples DS1863: AN4052, AN 4052, A
