Rainbow Electronics LM63 - Manual (Page 14)

2.0 LM63 Registers
(Continued)
Register
0x[HEX]
Register Name
DATA BITS
D7 D6 D5 D4 D3 D2 D1 D0
4F Lookup Table Hystersis 0 0 0 LOOKH4 LOOKH3 LOOKH2 LOOKH1 LOOKH0
50–5F Lookup Table Lookup Table of up to 8 PWM and Temp Pairs in 8-bit Registers
60–BE [Reserved] Not Used
BF Rmt Diode Temp Filter 0 0 0 0 0 RDTF1 RDTF0 ALTCOMP
C0–FD [Reserved] Not Used
FE Manufacturer’s ID 0 0 0 0 0 0 0 1
FF Stepping/Die Rev. ID 0 1 0 0 0 0 0 1
2.2 LM63 REGISTER MAP IN FUNCTIONAL ORDER
The following 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. The detailed explanations of each register will follow the order shown below. POR =
Power-On-Reset.
Register
[HEX]
Register Name Read/Write
POR Default
[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
4C PWM Value
Read Only
(R/W if Override Bit is Set)
00
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
LM63
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