Sundance SMT391-VP - Manual (Page 24)

Version 1.3 Page 24 of 41 SMT391-VP User Manual
Bit 4: SDB B reset.
Bit 5: RSL A reset.
Bit 6: RSL B reset.
Bit 7: Trigger logic reset channel Q (do not use).
Bit 8: Trigger logic reset channel I.
Firmware Version Register (Read Add 0x000)
A read from address 0x000 will display the firmware version register. The value of
this register is hard coded during VHDL compiles and must be stepped for each new
version of the firmware. Even though 32 bits are read over the Comport, the firmware
version register is a 16 bit register (16 least significant bits of the returned 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 0x000 xx xx
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 0x000 Firmware Version Firmware Version
Figure 7 – Firmware Version Register (Read Only).
Temperature Registers (Read Add 0x020, 0x021, 0x028, 0x029)
There are four temperature registers. Each register is 16 bits long. When the bit
value of the register is converted to a decimal number, that number is the
temperature in degrees Celsius.
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
0x020 (Smt338AirTempReg) (1)
0x021 (Smt338DiodeTempReg) (2)
0x028 (DaughterCardAirTempReg) (3)
0x029 (DaughterCardDiodeTempReg) (4)
xx
xx
xx
xx
xx
xx
xx
xx
(1) - SMT338-VP Air Temperature on Top of PCB