EMC1422-1-ACZL-TR SMSC, EMC1422-1-ACZL-TR Datasheet - Page 26

• Manufacturer Part Number: EMC1422-1-ACZL-TR
• Description: Board Mount Temperature Sensors Dual Temp Snsr
• Manufacturer: SMSC

Specifications of EMC1422-1-ACZL-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ADDR
02h
Revision 1.36 (07-02-09)
6.1
6.2
6.3
REGISTER
ADDRESS
ADDR
00h
29h
01h
10h
FDh
FEh
FFh
40h
R/W
R
R/W
When any temperature channel high byte register is read, the corresponding low byte is copied into
an internal ‘shadow’ register. The user is free to read the low byte at any time and be guaranteed that
it will correspond to the previously read high byte. Regardless if the low byte is read or not, reading
from the same high byte register again will automatically refresh this stored low byte data.
As shown in
the integer value and the low byte representing the fractional value left justified to occupy the MSBits.
The Status Register reports general error conditions. To identify specific channels, refer to
Section
appropriate High Limit, Low Limit, or THERM Limit register has been read or cleared.
Data Read Interlock
Temperature Data Registers
Status Register
R
R
R
R
REGISTER
R/W
R/W
Status
R
R
R
6.14,
External Diode
External Diode
Internal Diode
Internal Diode
REGISTER
High Byte
High Byte
Low Byte
Low Byte
Table
Table 6.1 Register Set in Hexadecimal Order (continued)
Section
REGISTER NAME
BUSY
Filter Control
B7
Product ID
6.2, all temperatures are stored as an 11-bit value with the high byte representing
SMSC ID
Revision
6.15, and
Table 6.2 Temperature Data Registers
128
128
B6
B7
0.5
0.5
-
Table 6.3 Status Register
Section
DATASHEET
0.25
0.25
B6
64
64
B5
Controls the digital filter setting for
-
Stores a fixed value that identifies
represents the revision number
6.16. The individual Status Register bits are cleared when the
the External Diode channel
26
Stores a fixed value that
Stores a fixed value that
0.125
0.125
HIGH
B5
32
32
represents SMSC
B4
each product
1°C Temperature Sensor with Hardware Thermal Shutdown
FUNCTION
B4
16
16
LOW
-
-
B3
B3
8
8
-
-
FAULT
B2
B2
4
4
-
-
THERM
B1
B1
DEFAULT
Table 6.21
2
2
-
-
VALUE
5Dh
00h
01h
B0
1
1
-
-
HWSD
B0
SMSC EMC1422
DEFAULT
Section
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Page 35
PAGE
Datasheet
00h
00h
00h
00h
DEFAULT
00h
6.9,