MT16JSF25664H Micron Semiconductor Products, MT16JSF25664H Datasheet - Page 15

• Manufacturer Part Number: MT16JSF25664H
• Description: Ddr3 Sdram Sodimm
• Manufacturer: Micron Semiconductor Products

Table 18:
PDF: 09005aef83364b70/Source: 09005aef83364bd3
JSF16C256x64HZ.fm - Rev. A 5/08 EN
10:9
Bit
0
1
2
3
4
5
6
7
8
Description
Event mode
0: Comparator mode
1: Interrupt mode
EVENT# polarity
0: Active LOW
1: Active HIGH
Critical event only
0: EVENT# trips on alarm or critical temperature event
1: EVENT# trips only if critical temperature is reached
Event output control
0: Event output disabled
1: Event output enabled
Event status
0: EVENT# has not been asserted by this device
1: EVENT# is being asserted due to an alarm window or
critical temperature condition
Clear event
0: No effect
1: Clears the event when the temperature sensor is in
the interrupt mode
Alarm window lock bit
0: Alarm trips are not locked and can be changed
1: Alarm trips are locked and cannot be changed
Critical trip lock bit
0: Critical trip is not locked and can be changed
1: Critical trip is locked and cannot be changed
Shutdown mode
0: Enabled
1: Shutdown
Hysteresis enable
00: Disable
01: Enable at 1.5°C
10: Enable at 3°C
11: Enable at 6°C
Configuration Register Bit Descriptions
2GB (x64, DR) 204-Pin Halogen-Free DDR3 SDRAM SODIMM
Temperature Sensor with Serial Presence-Detect EEPROM
15
Notes
Event mode cannot be changed if either of the lock bits
is set.
EVENT# polarity cannot be changed if either of the lock
bits is set.
This is a read-only field in the register. The event
causing the event can be determined from the read
temperature register.
The shutdown mode is a power-saving mode that
disables the temperature sensor.
When enabled, a hysteresis is applied to temperature
movement around the trip points. As an example, if the
hysteresis register is enabled to a delta of 6°C, the
preset trip points will toggle when the temperature
reaches the programmed value. These values will reset
when the temperature drops below the trip points
minus the set hysteresis level. In this case, this would be
critical temperature minus 6°C.
The hysteresis is applied both to the above alarm
window and to the below alarm window bits found in
the read-only temperature register. EVENT# is also
affected by this register.
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