se97b NXP Semiconductors, se97b Datasheet - Page 22

• Manufacturer Part Number: se97b
• Description: Ddr Memory Module Temp Sensor With Integrated Spd
• Manufacturer: NXP Semiconductors

NXP Semiconductors
8. Register descriptions
SE97B_1
Product data sheet
8.1 Register overview
This section describes all the registers used in the SE97B. The registers are used for
latching the temperature reading, storing the low and high temperature limits, configuring,
the hysteresis threshold of the ADC, as well as reporting status. The device uses the
pointer register to access these registers. Read registers, as the name implies, are used
for read only, and the write registers are for write only. Any attempt to read from a
write-only register will result in reading ‘0’s. Writing to a read-only register will have no
effect on the read even though the write command is acknowledged. The Pointer register
is an 8-bit register. All other registers are 16-bit.
Table 9.
A write to reserved registers my cause unexpected results which may result in requiring a
reset by removing and re-applying its power.
Address
(hex)
n/a
00h
01h
02h
03h
04h
05h
06h
07h
08h to 21h
22h
23h to FFh
Register summary
Default
state
(hex)
n/a
F7h
0000h
0000h
0000h
0000h
n/a
1131h
A203h
0000h
21h
0000h
Rev. 01 — 27 January 2010
Register name
Pointer register
Capability register
Configuration register
Upper Boundary Alarm Trip register
Lower Boundary Alarm Trip register
Critical Alarm Trip register
Temperature register
Manufacturer ID register
Device ID/Revision register
reserved registers
SMBus register
reserved
DDR memory module temp sensor with integrated SPD
Short
name
CAP
CONFIG
UPPER
LOWER
CRITICAL
TEMP
MANID
DEVICEID
SMBUS
Configuration
High Limit
Low Limit
TCRIT Limit
Manufacturer ID
Device/Revision
Vendor-defined
JEDEC name
Capabilities
Ambient
Temperature
© NXP B.V. 2010. All rights reserved.
SE97B
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