MIC3002 Datasheet, PDF (59/65 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibr ation

Micrel, Inc.
MIC3002
Modulation DAC Setting (MODDAC)
Current VMOD Setting
D[7]
read only
D[6]
read only
D[5]
read only
D[4]
read only
D[3]
read only
D[2]
read only
D[1]
read only
D[0]
read only
Default Value
Serial Address
Byte Address
0000 0000b = 00h
A6h
21 = 15h
This register reflects (reads back) the value set in the MODSET register. A valid OEM password is required for access to this
register.
OEM Readback Register (OEMRD)
D[7]
reserved
D[6]
reserved
D[5]
reserved
D[4]
INT
read only
D[3]
APCSAT
read only
D[2]
IBFLT
read only
D[1]
TXFLT
read only
D[0]
RSOUT
read only
Default Value
Serial Address
Byte Address
0000 0000b = 00h
A6h
22 = 16h
This register reflects (reads back) the status of the bits corresponding to the parameters defined below. A valid OEM password
is required for access to this register. Otherwise, reads are undefined and writes are ignored.
Bit
D[7:5]
D[4]
INT
D[3]
APCSAT
D[2]
IBFLT
D[1]
TXFLT
D[0]
RSOUT
Function
Reserved
Mirrors state of /INT but active-high;
not state of physical pin!
APC saturation fault comparator
output state
State of IBIAS over-current fault
comparator output
State of transmit power fault
comparator output
State of the rate select output pin,
RSOUT
Operation
Always write as zero; reads undefined.
1 = interrupt; 0 = no interrupt.
1 = fault; 0 = normal operation.
1 = fault; 0 = normal operation; read-only.
1 = fault; 0 = normal operation; read-only.
1 = high; 0 = low; Read-only.
Signal Detect Threshold (LOSFLTn)
D[7]
read/write
Default Value
D[6]
read/write
D[5]
read/write
D[4]
D[3]
read/write
read/write
0000 0000b = 00h
D[2]
read/write
D[1]
read/write
D[0]
read/write
Serial Address
A6h
Byte Address
23 = 17h
This register works in conjunction with the LOSFLT register to control the operation of the loss of signal comparator. The
comparator’s output, RXLOS, is asserted when the input on VRX falls below the level in LOSFLT. The output will then be de-
asserted when the VRX signal rises above LOSFLTn. The input signal is subject to scaling by the RXPOT. If the LOS
comparator is disabled, i.e., LOSDIS = 1, this register is ignored. A valid OEM password is required for access to this register.
This register is non-volatile and will be maintained through power and reset cycles.
July 2007
59
M9999-073107-B
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