MIC3000BML datasheet(12/68 Pages) MICREL

12 / 68 page

MIC3000

Micrel

M9999-101204

October 2004

Address Map

Address(s)

Field Size (Bytes)

Name

Description

0 - 95

Serial ID defined by

G-P NVRAM; R/W under valid OEM password.

SEP MSA

96 - 127

Vendor Specific

Vendor specific EEPROM

128 - 255

128

Reserved

Reserved for future use. G-P NVRAM; R/W under valid OEM

password.

Table 1. MIC3000 Address Map, Serial address = A0h

Address

Field Size

HEX

DEC

(Bytes)

Name

Description

00–27

0–39

Alarm and Warning Thresholds

High/low limits for warning and alarms; write-able using OEM p/w;

read-only otherwise.

28–37

40–55

Reserved

Reserved – do not write; reads undefined.

38–5B

56 –91

Calibration Constants

Numerical constants for external calibration; writeable using OEM

p/w; read-only otherwise.

5C–5E

92–94

Reserved

Reserved – do not write; reads undefined.

Checksum

G-P NVRAM; writeable using OEM p/w; read-only otherwise.

60–69

96–105

Analog Data

Real time analog parameter data.

6A–6D

106–109

Reserved

Reserved for future definition of digitized analog input– do not write;

reads undefined.

110

Control/Status bits

Control and status bits.

111

Reserved

Reserved – do not write; reads undefined.

70–71

112–113

Alarm Flags

Alarm status bits; read-only.

72–73

114–115

Reserved

Reserved–do not write; reads undefined.

74–75

116–117

Warning Flags

Warning status bits; read-only.

76–77

118–119

Reserved

Reserved – do not write; reads undefined.

78–7B

120–123

OEMPW

OEM password entry field.

7C–7F

124–127

Vendor Specific

Vendor specific. Reserved–do not write; reads undefined.

80–F7

128–247

120

User Scratchpad

User writable EEPROM. G-P NVRAM; R/W using any valid

password.

F8–F9

248–249

Reserved

Reserved – do not write; reads undefined.

250

USRPWSET

User password setting; read/write using any p/w; returns zero

otherwise.

251

USRPW

Entry field for user password.

FC–FD

252–253

POH

Power-on hour meter result; read-only.

254

Data Ready Flags

Data ready bits for each measured parameter; read-only.

255

User Control

End-user control and status bits.

Table 2. MIC3000 Address Map, Serial Address = A2h

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