MIC3003 Datasheet, PDF (15/75 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
MIC3003
Serial Interface Address Maps
Address
(Decimal)
0 –95
96 – 127
128 – 255
Field Size
(Bytes)
96
32
128
Name
Serial ID defined by SFP MSA
Vendor Specific
Reserved
Description
General-purpose NVRAM; R/W under valid OEM password.
Vendor specific EEPROM
Reserved for future use. General-purpose NVRAM; R/W under
valid OEM password.
Table 1. MIC3003 Serial Interface Address Map, Device Address = A0_h
Address(s)
Hex
Dec
00-27 0-39
Field Size
(Bytes)
40
Name
Alarm and Warning Thresholds
28-37 40-55 16
38-5B 56-91 36
Reserved
Calibration Constants
5C-5E 92-94 3
5F
95
1
Reserved
Checksum
60-69
6A-6D
6E
6F
96-105 10
106-109 4
110
1
111
1
Analog Data
Reserved
Control/Status Register
Rate Select Control
70-71
72-73
74-75
76
112-113 2
114-115 2
116-117 2
118
1
77
78-7E
119
1
120-126 7
Alarm Flags
Reserved
Warning Flags
Extended Control/Status
Register
Reserved
OEMPW
7F
80-F7
F8-F9
127
1
128-247 120
248-249 2
FA-FB 250-251 2
FC-FD 252-253 2
FE
254
1
FF
255
1
Vendor-specific
User Scratchpad
Alarms Masks
Warnings Masks
Reserved
USRCTL
RESETOUT
Description
High/low limits for warnings and alarms; writeable using the
OEM password; read-only otherwise.
Reserved – do not write; reads undefined.
Numerical constants for external calibration; writeable using
the OEM password; read-only otherwise.
Reserved – do not write; reads undefined.
General-purpose NVRAM; writeable using the OEM password;
read-only otherwise.
Real time analog parameter data.
Reserved – do not write; reads undefined.
Control and status bits.
Bits [7-6] control the use of the RS0 and RS1 inputs and the
SRS0 and SRS1 register bits.
Alarm status bits; read-only.
Reserved – do not write; reads undefined.
Warning status bits; read-only.
Additional control and status bits.
Reserved – do not write; reads undefined.
OEM password entry field. The four-byte OEM password
location can be selected to be 78h-7Bh (120-123) by setting
OEMCFG5 bit 2 to 0 (default) or 7Bh-7Eh (123-126) by setting
OEMCFG5 bit 2 to a one.
Vendor specific. Reserved – do not write; reads undefined.
User-writeable EEPROM. General-purpose NVRAM.
Bit = 0: Corresponding alarm not masked.
Bit = 1: Corresponding alarm masked.
Bit = 0: Corresponding warning not masked.
Bit = 1: Corresponding warning masked.
Reserved – do not write; reads undefined.
End-user control and status bits.
Bits [2:0] of this register control the QGPO reset output (pin
17) If OEMCFG3 bit 7 is set to 1.
Table 2. MIC3003 Serial Interface Address Map, Device Address = A2
November 2009
15
M9999-111209-C
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