SNAS207B May 2004 – January 2024 LM64
PRODUCTION DATA
The following is a Register Map grouped in hexadecimal address order. Some address locations have been left blank to maintain compatibility with LM86. Addresses in parenthesis are mirrors of “Same As” address for backwards compatibility with some older software. Reading or writing either address will access the same 8-bit register.
Register 0x[HEX] |
Register Name | DATA BITS | |||||||
---|---|---|---|---|---|---|---|---|---|
D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 | ||
00 | Local Temperature | LT7 | LT6 | LT5 | LT4 | LT3 | LT2 | LT1 | LT0 |
01 | Rmt Temp MSB | RTHB± | RTHB14 | RTHB13 | RTHB12 | RTHB11 | RTHB10 | RTHB9 | RTHB8 |
02 | ALERT Status | BUSY | LHIGH | 0 | RHIGH | RLOW | RDFA | RCRIT | TACH |
03 | Configuration | ALTMSK | STBY | PWMDIS | 0 | 0 | ALT/TCH | TCRITOV | FLTQUE |
04 | Conversion Rate | 0 | 0 | 0 | 0 | CONV3 | CONV2 | CONV1 | CONV0 |
05 | Local High Setpoint | LHS7 | LHS6 | LHS5 | LHS4 | LHS3 | LHS2 | LHS1 | LHS0 |
06 | [Reserved] | Not Used | |||||||
07 | Rmt High Setpoint MSB | RHSHB15 | RHSHB14 | RHHBS13 | RHSHB12 | RHSHB11 | RHSHB10 | RHSHB9 | RHSHB8 |
08 | Rmt Low Setpoint MSB | RLSHB15 | RLSHB14 | RLSHB13 | RLSHB12 | RLHBS11 | RLSHB10 | RLSHB9 | RLSHB8 |
(09) | Same as 03 | ||||||||
(0A) | Same as 04 | ||||||||
(0B) | Same as 05 | ||||||||
0C | [Reserved] | Not Used | |||||||
(0D) | Same as 07 | ||||||||
(0E) | Same as 08 | ||||||||
0F | One Shot | Write Only. Write command triggers one temperature conversion cycle. | |||||||
10 | Rmt Temp LSB | RTLB7 | RTLB6 | RTLB5 | 0 | 0 | 0 | 0 | 0 |
11 | Rmt Temp Offset MSB | RTOHB15 | RTOHB14 | RTOHB13 | RTOHB12 | RTOHB11 | RTOHB10 | RTOHB9 | RTOHB8 |
12 | Rmt Temp Offset LSB | RTOLB7 | RTOLB6 | RTOLB5 | 0 | 0 | 0 | 0 | 0 |
13 | Rmt High Setpoint LSB | RHSLB7 | RHSLB6 | RHSLB5 | 0 | 0 | 0 | 0 | 0 |
14 | Rmt Low Setpoint LSB | RLSLB7 | RLSLB6 | RLSLB5 | 0 | 0 | 0 | 0 | 0 |
15 | [Reserved] | Not Used | |||||||
16 | ALERT Mask | 1 | ALTMSK6 | 1 | ALTMSK4 | ALTMSK3 | 1 | ALTMSK1 | ALTMSK0 |
17 | [Reserved] | Not Used | |||||||
18 | [Reserved] | Not Used | |||||||
19 | Rmt TCRIT Setpoint | RCS7 | RCS6 | RCS5 | RCS4 | RCS3 | RCS2 | RCS1 | RCS0 |
1A | General Purpose Input | 0 | 0 | 0 | GPI5 | GPI4 | GPI3 | GPI2 | GPI1 |
1B | General Purpose Output | 0 | 0 | 0 | GPO5 | GPO4 | GPO3 | GPO2 | GPO1 |
1C–1F | [Reserved] | Not Used | |||||||
20 | [Reserved] | Not Used | |||||||
21 | Rmt TCRIT Hysteresis | RTH7 | RTH6 | RTH5 | RTH4 | RTH3 | RTH2 | RTH1 | RTH0 |
22–2F | [Reserved] | Not Used | |||||||
30–3F | [Reserved] | Not Used | |||||||
40–45 | [Reserved] | Not Used | |||||||
46 | Tach Count LSB | TCLB5 | TCLB4 | TCLB3 | TCLB2 | TCLB1 | TCLB0 | TEDGE1 | TEDGE0 |
47 | Tach Count MSB | TCHB13 | TCHB12 | TCHB11 | TCHB10 | TCHB9 | TCHB8 | TCHB7 | TCHB6 |
48 | Tach Limit LSB | TLLB7 | TLLB6 | TLLB5 | TLLB4 | TLLB3 | TLLB2 | Not Used | Not Used |
49 | Tach Limit MSB | TLHB15 | TLHB14 | TLHB13 | TLHB12 | TLHB11 | TLHB10 | TLHB9 | TLHB8 |
4A | PWM and RPM | 0 | 0 | PWPGM | PWOUT± | PWCKSL | 0 | TACH1 | TACH0 |
4B | Fan Spin-Up Config | 0 | 0 | SPINUP | SPNDTY1 | SPNDTY0 | SPNUPT2 | SPNUPT1 | SPNUPT0 |
4C | PWM Value | 0 | 0 | PWVAL5 | PWVAL4 | PWVAL3 | PWVAL2 | PWVAL1 | PWVAL0 |
4D | PWM Frequency | 0 | 0 | 0 | PWMF4 | PWMF3 | PWMF2 | PWMF1 | PWMF0 |
4E | [Reserved] | Not Used | |||||||
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 | 1 | 0 | 0 | 0 | 1 |