se98a NXP Semiconductors, se98a Datasheet - Page 15

• Manufacturer Part Number: se98a
• Description: Ddr Memory Module Temp Sensor, 1.7 V To 3.6 V
• Manufacturer: NXP Semiconductors

NXP Semiconductors
8. Register descriptions
SE98A_1
Product data sheet
8.1 Register overview
This section describes all the registers used in the SE98A. The registers are used for
latching the temperature reading, storing the low and high temperature limits, configuring,
the hysteresis threshold and 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 zeroes. 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 5.
A write to reserved registers my cause unexpected results which may result in requiring a
reset by removing and re-applying its power.
Address
n/a
00h
01h
02h
03h
04h
05h
06h
07h
08h to 21h
22h
23h to FFh
Register summary
POR state
n/a
0037h
0000h
0000h
0000h
0000h
n/a
1131h
A102h
0000h
0000h
0000h
Rev. 01 — 5 March 2009
DDR memory module temp sensor, 1.7 V to 3.6 V
Register name
Pointer register
Capability register (B grade = 0037h)
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 registers
© NXP B.V. 2009. All rights reserved.
SE98A
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