MCP98243-BE/MNY MICROCHIP [Microchip Technology], MCP98243-BE/MNY Datasheet - Page 18

• Manufacturer Part Number: MCP98243-BE/MNY
• Description: Memory Module Temperature Sensor w/ EEPROM for SPD
• Manufacturer: MICROCHIP [Microchip Technology]

MCP98243
5.1.1
This is a read-only register used to identify the
temperature sensor capability. In this case, the
MCP98243 is capable of providing temperature at
0.25°C resolution, measuring temperature below and
above 0°C, providing ±1°C and ±2°C accuracy over the
active and monitor temperature ranges (respectively)
and providing user-programmable temperature event
boundary trip limits.
Capability register. These functions are described in
further detail in the following sections.
REGISTER 5-2:
DS22153B-page 18
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15-8
bit 7
bit 6
bit 5
bit 4-3
bit 2
SHDN Status
U-0
R-1
—
CAPABILITY REGISTER
Unimplemented: Read as ‘0’
Event output status during Shutdown (SHDN Status):
0 =
1 =
I
0 =
1 =
High Voltage Input
0 =
1 =
Resolution:
00 = 0.5°C
01 = 0.25°C (power up default)
10 = 0.125°C
11 = 0.0625°C
These bits reflect the selected resolution (see Section 5.2.4 “Temperature Resolution”)
Temperature Measurement Range (Meas. Range):
0 =
1 =
2
t
OUT
C Bus time-out (t
U-0
R-1
—
Range
CAPABILITY REGISTER (READ-ONLY) → ADDRESS ‘0000 0000’b
Event output remains asserted during shutdown
Event output de-asserts during shutdown. After shutdown it takes tCONV to re-assert the Event
output (power-up default)
Bus time-out range is 10 ms to 60 ms
Bus time-out range is 25 ms to 35 ms (power-up default)
Pin A0 does not accept High Voltage
Pin A0 accepts High Voltage for the internal EEPROM Write Protect feature (power-up default)
T
The part can measure temperature below 0°C (power-up default)
A
Register 5-2
= 0 (decimal) for temperature below 0°C
W = Writable bit
‘1’ = Bit is set
V
U-0
R-1
OUT
—
HV
describes the
Range):
U-0
R-0
—
Resolution
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U-0
R-1
—
Meas Range
U-0
R-1
—
© 2009 Microchip Technology Inc.
x = Bit is unknown
Accuracy
U-0
R-1
—
Temp Alarm
U-0
R-1
—
bit 8
bit 0