mic3002 Micrel Semiconductor, mic3002 Datasheet - Page 51

• Manufacturer Part Number: mic3002
• Description: Mic3002 Fom Management Ic With Internal Calibration
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
July 2007
Default Value
Serial Address
Byte Address
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).
Default Value
Serial Address
Bytes Address
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)
D[7]
D[6:0]
Default Value
Serial Address
Byte Address
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.
read/write
read/write
read/write
D[2:0]
D[7]
D[6]
D[5]
D[4]
D[3]
TRDY
D[7]
D[7]
D[7]
Bit(s)
RXRDY
TXRDY
TRDY
VRDY
IRDY
read/write
read/write
read/write
Function
Power-on hours fault flag
Power-on hours, high byte
VRDY
D[6]
D[6]
D[6]
Temperature data ready flag
Voltage data ready flag
Bias current data ready flag
Transmit power data ready flag
Receive power data ready flag
Reserved
Function
read/write
read/write
read/write
IRDY
D[5]
D[5]
D[5]
Data Ready Flags (DATARDY)
0000 0000 b = 00 h
A2 h
247 = F7 h
0000 0000 b = 00 h
A6 h
MSB (POHh): 251 = FB h
LSB (POHl): 252 = FC h
0000 0000 b = 00 h
A6 h
253 = FD h
USER Password (USRPW)
read/write
read/write
read/write
TXRDY
D[4]
D[4]
D[4]
Power-On Hours
Operation
0 = old data; 1 = new data ready
0 = old data; 1 = new data ready
0 = old data; 1 = new data ready
0 = old data; 1 = new data ready
0 = old data; 1 = new data ready
Reserved
Operation
1 = fault; 0 = no fault.
Non-volatile.
read/write
read/write
read/write
51
RXDY
D[3]
D[3]
D[3]
read/write
read/write
reserved
D[2]
D[2]
D[2]
[e-mail]
read/write
read/write
reserved
D[1]
D[1]
D[1]
or [phone]
read/write
read/write
M9999-073107-B
reserved
D[0]
D[0]
D[0]
MIC3002