EMC1046 Standard Microsystems Corp., EMC1046 Datasheet - Page 34

• Manufacturer Part Number: EMC1046
• Description: 1 Degree C Multiple Temperature Sensor With Beta Compensation And Hottest Of Thermal Zones
• Manufacturer: Standard Microsystems Corp.

Revision 0.66 (06-02-08)
ADDR
5.18
40h
R/W
R/W
Filter Control Register
The Channel Configuration Register determines which external diode channels are active in the device.
Bit 7 - REM_HOT - Enables circuitry that will remember the last temperature channel that was
determined to be the Hottest and flag an error if the hottest temperature channel changes.
Bit 2 - EXT4_APD - Enables the DP4 / DN5 and DN4 / DP5 pins to support two anti-parallel diode
connections versus a single diode connection.
Bit 1 - EXT2_APD- Enables the DP2 / DN3 and DN2 / DP3 pins to support two anti-parallel diode
connections versus a single diode connection.
Bit 0 - EXT1_APD (EMC1047 only)- Enables the DP1 / DN6 and DN1 / DP6 pins to support two anti-
parallel diode connections versus a single diode connection.
The Filter Configuration Register controls the digital filter on the external diode channels.
Bits 6 - 0 - AVGx_EN- Control the digital averaging that is applied to the External Diode X temperature
measurements.
‘0’ (default) - The HOTTEST status bit will not be asserted if the hottest temperature channel
changes.
‘1’ - If the hottest temperature channel changes, then the HOTTEST status bit will be asserted.
‘0’ (default) - The DP4 / DN5 and DN4 / DP5 pins do not support two anti-parallel diode
connections. The pins will only monitor a single external diode (External Diode 4).
‘1’ - The DP4 / DN5 and DN4 / DP5 pins support two anti-parallel diode connections (External
Diode 4 and External Diode 5).
‘0’ (default) - The DP2 / DN3 and DN2 / DP3 pins do not support two anti-parallel diode
connections. The pins will only monitor a single external diode (External Diode 2).
‘1’ - The DP2 / DN3 and DN2 / DP3 pins support two anti-parallel diode connections (External
Diode 2 and External Diode 3).
‘0’ (default) - The DP1 / DN6 and DN1 / DP6 pins do not support two anti-parallel diode
connections. The pins will only monitor a single external diode (External Diode 1).
‘1’ - The DP1 / DN6 and DN1 / DP6 pins support two anti-parallel diode connections (External
Diode 1 and External Diode 6.
‘0’ (default) - Digital Averaging is disabled.
‘1’ - Digital averaging is enabled as a 4x running average for the External Diode X channel.
Filter Control
REGISTER
B7
-
Table 5.23 Filter Control Register
AVG6
_EN
B6
1°C Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones
DATASHEET
AVG5
_EN
B5
34
AVG4
_EN
B4
3_EN
AVG
B3
AVG2
_EN
B2
1_EN
AVG
B1
SMSC EMC1046/EMC1047
B0
-
DEFAULT
Datasheet
00h