mic3003 Micrel Semiconductor, mic3003 Datasheet - Page 68

• Manufacturer Part Number: mic3003
• Description: Fom Management Ic With Internal Calibration
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
May 2009
Default value
Serial address
Byte address
This eight-bit register works in conjunction with the LOSFLT register to provide hysteresis and 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 deasserted when the VRX signal rises above the level in 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.
Default value
Serial address
Byte address
This register is non-volatile and will be maintained through power and reset cycles. A valid OEM password is required for access
to these registers.
Bit(s)
D[7:5]
D[4:0]
read-only
read/write
reserved
D[7]
D[7]
Function
Reserved
RXPOT tap selection:
read-only
read/write
reserved
D[6]
D[6]
read/write
read-only
reserved
D[5]
D[5]
Signal Detect Threshold (LOSFLTn)
RX EEPOT Tap Selection (RXPOT)
0000 0000 b = 00 h
A6 h
23 = 17 h
0000 0000 b = 00 h
A6 h
24 = 18 h
Operation
Reserved. Always write as zero; reads return zeros.
Adjust gain of the receive power measurement:
00000 = No divider action
00001 = 31/32
00010 = 30/32
11110 = 2/32
11111 = 1/32
RXPOT[4]
read/write
read/write
•
•
•
D[4]
D[4]
RXPOT[3]
read/write
read/write
68
D[3]
D[3]
RXPOT[2]
read/write
read/write
D[2]
D[2]
[e-mail]
RXPOT[1]
read/write
read/write
D[1]
D[1]
or [phone]
M9999-052709-A
RXPOT[0]
read/write
read/write
D[0]
D[0]
MIC3003