mt18hvs25672rhy-667 Micron Semiconductor Products, mt18hvs25672rhy-667 Datasheet - Page 14

• Manufacturer Part Number: mt18hvs25672rhy-667
• Description: 2gb X72, Dr 200-pin Ddr2 Sdram Vlp Sordimm
• Manufacturer: Micron Semiconductor Products

Table 18:
Configuration Register
Table 19:
Table 20:
PDF: 09005aef82882ad5/Source: 09005aef82882b0e
HVS18C_256x72RH.fm - Rev. B 5/08 EN
15:5
Critical lock
Bit
4:3
Bit
1
2
0
1
2
3
4
5
6
Bit15
Bit7
RFU
bit
Description
Accuracy
0: ±2°C over the active range and ±3°C over the monitor range
1: ±1°C over the active range and ±2°C over the monitor range
Wider range
0: Temperatures lower than 0°C are clamped to a binary value of 0
1: Temperatures below 0°C can be read
Temperature resolution
00: 0.5°C LSB
01: 0.25°C LSB
10: 0.125°C LSB
11: 0.0625°C LSB
0 - Must be set to zero
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 will are not locked and can be changed
1: Alarm trips are locked and can not be changed
Capability Register Bit Descriptions
Configuration Register Bits 0–15
Configuration Register Bit Descriptions
Alarm lock bit
Bit14
Bit6
RFU
Clear event
Bit13
Bit5
RFU
Event output
Bit12
status
Bit4
RFU
2GB (x72, DR) 200-Pin DDR2 SDRAM VLP SORDIMM
14
Event output
control
Bit11
Bit3
RFU
Note
Cannot be changed if either of the lock bits are set
Cannot be changed if either of the lock bits are set
This is a read-only field in the register; the event
causing the event can be determined from the read
temperature register
This is a write-only field in the register and is self
clearing
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Critical event
Bit10
Bit2
only
Hysteresis
Event polarity
Temperature Sensor
©2007 Micron Technology, Inc. All rights reserved.
Bit9
Bit1
Event mode
Shutdown
mode
Bit8
Bit0