MIC3000 Datasheet, PDF (52/68 Pages) Micrel Semiconductor – SFP Management IC

MIC3000
Micrel
OEM Configuration Register 0 (OEMCFG0)
D[7]
RST
write only
D[6]
ZONE
read/write
D[5]
DFLT
read only
D[4]
OE
reserved
D[3]
MODREF
reserved
D[2]
VAUX[2]
read/write
D[1]
VAUX[1]
read/write
D[0]
VAUX[0]
read/write
Default Value
0000 0000_b = 00_h
Serial Address
A6_h = 1010011_b
Byte Address
00 = 00_h
A write to OEMCFG0 will result in any A/D conversion in progress being aborted and the result discarded. The A/D will
begin a new conversion sequence once the write operation is complete. All bits in OEMCFG0 are non-volatile except
DFLT and RST. A valid OEM password is required for access to this register.
Bit(s)
D[7]
RST
D[6]
ZONE
D[5]
DFLT
D[4]
OE
D[3]
MODREF
D[2:0] VAUX[2:0]
Function
Selects temperature zone.
Diode fault flag.
Output enable for SHDN, V_MOD, and V_BIAS.
Selects whether V_MOD is referenced to ground
or V_DD.
Selects the voltage reported in VINh:VINl.
Operation
0 = no action; 1 = reset; write-only.
0 = internal; 1 = external; non-volatile.
1 = diode fault; 0 = OK.
1 = enabled; 0 = hi-Z; non-volatile.
1 = V_DD; 0 = GND; non-volatile.
000 = V_IN; 001 = V_DDA; 010 = V_BIAS; 011 = V_MOD;
100 = APCDAC; 101 = MODDAC; 110 = FLTDAC;
non-volatile
OEM Configuration Register 1 (OEMCFG1)
D[7]
INV
read/write
D[6]
GAIN
read/write
D[5]
BIASREF
read/write
D[4]
RFB[2]
read/write
D[3]
RFB[1]
read/write
D[2]
RFB[0]
read/write
D[1]
SRCE
read/write
D[0]
SPOL
read/write
Default Value
0000 0000_b = 00_h
Serial Address
A6_h = 1010011_b
Byte Address
1 = 01_h
A write to OEMCFG1 will result in any A/D conversion in progress being aborted and the result discarded. The A/D will
begin a new conversion sequence once the write operation is complete. All bits in OEMCFG1 are non-volatile and will
be maintained through power and reset cycles. A valid OEM password is required for access to this register.
M9999-101204
52
October 2004