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MIC3002 Datasheet(PDF) 51 Page - Micrel Semiconductor |
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MIC3002 Datasheet(HTML) 51 Page - Micrel Semiconductor |
51 / 65 page Micrel, Inc. MIC3002 July 2007 51 M9999-073107-B hbwhelp@micrel.com or (408) 955-1690 USER Password (USRPW) D[7] read/write D[6] read/write D[5] read/write D[4] read/write D[3] read/write D[2] read/write D[1] read/write D[0] read/write Default Value 0000 0000b = 00h Serial Address A2h Byte Address 247 = F7h USER passwords are entered in this field. This field is compared to the USRPWSET field at serial address A2h, byte 246 (F6h). If the two fields match, access is allowed to the USER areas of the MIC3002 non-volatile memory at serial addresses A0h and A2h. If a valid USER password has not been entered, writes to the serial ID fields and user scratchpad areas of A0h and A2h will not be allowed and USRPWSET will be unreadable (returns all zeroes). Power-On Hours D[7] read/write D[6] read/write D[5] read/write D[4] read/write D[3] read/write D[2] read/write D[1] read/write D[0] read/write Default Value 0000 0000b = 00h Serial Address A6h Bytes Address MSB (POHh): 251 = FBh LSB (POHl): 252 = FCh The lower seven bits of POHh register contain the most-significant bits of the 15-bit power-on hours measurement. POHFLT is an error flag. The value in POHh should be combined with the Power-on Hours, Low Byte, POHl, to yield the complete result. If POHFLT is set, the power-on hour meter data has been corrupted and should be ignored. It is recommended that a two-byte (or more) sequential read operation be performed on POHh and POHl to insure coherency between the two registers. This register is non-volatile and will be maintained through power and reset cycle. POHh Bit(s) Function Operation D[7] Power-on hours fault flag 1 = fault; 0 = no fault. D[6:0] Power-on hours, high byte Non-volatile. Data Ready Flags (DATARDY) D[7] TRDY read/write D[6] VRDY read/write D[5] IRDY read/write D[4] TXRDY read/write D[3] RXDY read/write D[2] reserved D[1] reserved D[0] reserved Default Value 0000 0000b = 00h Serial Address A6h Byte Address 253 = FDh When the A/D conversion for a given parameter is completed and the results available to the host, the corresponding data ready flag will be set. The flag will be cleared when the host reads the corresponding result register. Bit(s) Function Operation D[7] TRDY Temperature data ready flag 0 = old data; 1 = new data ready D[6] VRDY Voltage data ready flag 0 = old data; 1 = new data ready D[5] IRDY Bias current data ready flag 0 = old data; 1 = new data ready D[4] TXRDY Transmit power data ready flag 0 = old data; 1 = new data ready D[3] RXRDY Receive power data ready flag 0 = old data; 1 = new data ready D[2:0] Reserved Reserved |
Similar Part No. - MIC3002_10 |
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Similar Description - MIC3002_10 |
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