Read response format – Sundance SMT391-VP User Manual
Page 25
Version 1.3
Page 25 of 41
SMT391-VP User Manual
(2) – SMT338-VP FPGA temperature on Bottom of PCB
(3) – SMT391 Air Temperature on Bottom of PCB
(4) – SMT391 ADC temperature on Top of PCB (Not implemented)
Read Response Format:
31 .. 28
27 .. 24
23 .. 20
19 .. 16
15 .. 12
11 .. 8
7 .. 4
3 .. 0
Command
Address
Data MSB
Data LSB
0x2
0x2
0x2
0x2
0x020
0x021
0x028
0x029
SMT338-VP
SMT338-VP
SMT391
SMT391
Air Temperature
Diode Temperature
Air Temperature
Diode Temperature
Figure 8 – Temperature Registers (Read Only).
Serial Number Registers (Read Add 0x022 - 0x025 and 0x02A - 0x02D)
There is a unique silicon serial number IC on both the SMT338-VP and the SMT391.
Each serial number is 64 bits long and is thus requires four 16 bit registers to store
the value.
Read Request Format:
31 .. 28
27 .. 24
23 .. 20
19 .. 16
15 .. 12
11 .. 8
7 .. 4
3 .. 0
Command
Address
Data MSB
Data LSB
0x2
0x2
0x2
0x2
0x022 (Smt338SerialNoA)
0x023 (Smt338SerialNoB)
0x024 (Smt338SerialNoC)
0x025 (Smt338SerialNoD)
xx
xx
xx
xx
xx
xx
xx
xx
0x2
0x2
0x2
0x2
0x02A (DaughterCardSerialNoA)
0x02B (DaughterCardSerialNoB)
0x02C (DaughterCardSerialNoC)
0x02D (DaughterCardSerialNoD)
xx
xx
xx
xx
xx
xx
xx
xx
Figure 9 – Serial Number Registers (Read Only).
Read Response Format:
31 .. 28
27 .. 24
23 .. 20
19 .. 16
15 .. 12
11 .. 8
7 .. 4
3 .. 0
Command
Address
Data MSB
Data LSB