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ADM1025A Datasheet(PDF) 18 Page - ON Semiconductor |
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ADM1025A Datasheet(HTML) 18 Page - ON Semiconductor |
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ADM1025/ADM1025A Preliminary Technical Data Rev. P5 | Page 18 of 21| www.onsemi.com REGISTERS Table 8. Address POINTER Register Bit Name R/W Description 7–0 Address Pointer Write Address of ADM1025/ ADM1025A Registers. See the tables below for detail. Table 9. List of Registers Register Name Address A7–A0 in Hex Power On Value of Registers: <7:0> Configuration Register 40h 0000 1000 Status Register 1 41h 0000 0000 Status Register 2 42h 0000 0000 VID Register 47h <7:4> = 0000, <3:0> = VID3– VID0 VID4 Register 49h <0> = VID4; Default = 1000 000 (VID4) Value and Limit Registers 15–3Dh Company ID 3Eh 0100 0001 Stepping 3Fh 0010 (Bits 3:0 Version Number) Table 10. Register 40h – Configuration Register Bit Name R/W Description 0 START Read/Write Logic 1 enables startup of monitor ASIC, and Logic 0 places the ASIC in standby mode. At startup, limit checking functions and scanning begins. Note, all HIGH and LOW LIMITS should be set into the ADM1025/ ADM1025A prior to turning on this bit. (Power-up Default = 0.) 1 Reserved Read 2 Reserved Read 3 Reserved Read 4 RESET Read/Write Setting this bit generates a minimum 20 ms low pulse on Pin 16 if the function is enabled. 5 +12/VID4 Select Read/Write Selects whether Pin 11 acts as a 12 V analog input monitoring pin, or as a VID[4] input. This pin defaults to the 12 V analog input. (Default = 0.) 6 Reserved Read 7 Initialization Read/Write Logic 1 restores power-up default values to the Configuration Register and Status Registers. This bit automatically clears itself and the power-on default is zero. |
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