Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- OPERATING RATINGS
- DC ELECTRICAL CHARACTERISTICS
- OPERATING ELECTRICAL CHARACTERISTICS
- AC ELECTRICAL CHARACTERISTICS
- DIGITAL ELECTRICAL CHARACTERISTICS
- SMBus LOGICAL ELECTRICAL CHARACTERISTICS
- SMBus DIGITAL SWITCHING CHARACTERISTICS
- FUNCTIONAL DESCRIPTION
- LM63 REGISTERS
- APPLICATION NOTES
- Revision History
LM63
www.ti.com
SNAS190E –SEPTEMBER 2002–REVISED MAY 2013
REGISTER MAP IN FUNCTIONAL ORDER
Table 4 is a Register Map grouped in Functional Order. Some address locations have been left blank to maintain
compatibility with LM86. Addresses in parenthesis are mirrors of named address. Reading or writing either
address will access the same 8-bit register. The Fan Control and Configuration Registers are listed first, as there
is a required order to setup these registers first and then setup the others (see REQUIRED INITIAL FAN
CONTROL REGISTER SEQUENCE). The detailed explanations of each register will follow the order shown in
Table 4.
Note: POR = Power-On-Reset.
Table 4. Register Map Grouped in Functional Order
REGISTER POR DEFAULT
REGISTER NAME READ/WRITE
[HEX] [HEX]
FAN CONTROL REGISTERS
4A PWM and RPM R/W 20
4B Fan Spin-Up Configuration R/W 3F
4D PWM Frequency R/W 17
Read Only
4C PWM Value 00
(R/W if Override Bit is Set)
50–5F Lookup Table R/W See Table
4F Lookup Table Hysteresis R/W 04
CONFIGURATION REGISTER
03 (09) Configuration R/W 00
TACHOMETER COUNT AND LIMIT REGISTERS
46 Tach Count LSB Read Only N/A
47 Tach Count MSB Read Only N/A
48 Tach Limit LSB R/W FF
49 Tach Limit MSB R/W FF
LOCAL TEMPERATURE AND LOCAL SETPOINT REGISTERS
00 Local Temperature Read Only N/A
05 (0B) Local High Setpoint R/W 46 (70°)
REMOTE DIODE TEMPERATURE AND SETPOINT REGISTERS
01 Remote Temperature MSB Read Only N/A
10 Remote Temperature LSB Read Only N/A
11 Remote Temperature Offset MSB R/W 00
12 Remote Temperature Offset LSB R/W 00
07 (0D) Remote High Setpoint MSB R/W 46 (70°C)
13 Remote High Setpoint LSB R/W 00
08 (0E) Remote Low Setpoint MSB R/W 00 (0°C)
14 Remote Low Setpoint LSB R/W 00
19 Remote TCRIT Setpoint R/W 55 (85°C)
21 Remote TCRIT Hys R/W 0A (10°C)
BF Remote Diode Temperature Filter R/W 00
CONVERSION AND ONE-SHOT REGISTERS
04 (0A) Conversion Rate R/W 08
0F One-Shot Write Only N/A
ALERT STATUS AND MASK REGISTERS
02 ALERT Status Read Only N/A
16 ALERT Mask R/W A4
ID AND TEST REGISTERS
FF Stepping/Die Rev. ID Read Only 41
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