DOC 02110-1
ACTIA PCs
Page 30 / 52
To access the logical inputs and logical outputs of the mixing panel, Its recommended to use the new
interface through the USB bus. Refer to the documentation of the mixing panel for details.
Power Management
The IHMI v2 power supply is managed by a Z8 microcontroller as described previously. Some parameters
can be modified via the processor SMBus interface.
Z8 microcontroller SMBus address: 6Eh
Register 00h: CONFIG (R)
Bit 0: temperature profile (0=standard, 1= aggressive)
Bit 1: not used
Bit 2: auto power down (0=yes, 1= no)
Bit 3: not used
Bit 7-4: 1111 – see register 1Fh for version
Register 01h: STATE (R/W)
Bits 7-0: current state
1- System powered down
2- System powered down with wakeup timer
3- System powered up with ignition signal
4- System standby
5- System powered up after a wakeup
6- Waiting for system shutdown
7- Waiting for shutdown - system too hot
8- Waiting for the system to cool down – power down
9- Waiting for the system to cool down – standby
Note: Only the values 1 and 6 can be written in this register. Writing 1 requests an immediate power
down of the system. Writing 6 has an effect only when the current state is 3 or 5. It requests an
operating system shutdown.
Register 02h: FILTERED INPUT (R)
Bit 0: NPOE (active at 0)
Bit 1: NCONTACT (active at 0)
Bit 2: NRING (active at 0)
Bit 3: NSMBUSALERT (active at 0)
Bit 4: NS3 (active at 0)
Bit 5: NS4 (active at 0)
Bit 6: NVIN (active at 0)
Bit 7: POWERGOOD (active at 1)
Register 03h: TEMP (R)
Bits 7-0: board temperature °C
Register 04h: VIN (R)
Bits 7-0: board power supply level in 1/5 volt
Register 05h: Not used
Register 06h: LOW_TEMP (R/W)
Bits 7-0: low temperature startup condition °C
Summary of Contents for IHMI
Page 1: ...DOC 02110 revision 1 ACTIA PCs IHMI v2 USER S MANUAL ...
Page 42: ...DOC 02110 1 ACTIA PCs Page 42 52 Module MC75i EDGE World 2 2 ...
Page 43: ...DOC 02110 1 ACTIA PCs Page 43 52 Module PHS8 3G World 1 2 ...
Page 45: ...DOC 02110 1 ACTIA PCs Page 45 52 Module SparkLan WPEA 121N ...
Page 48: ...DOC 02110 1 ACTIA PCs Page 48 52 APPENDICES Mechanical drawings IHMI v2 case ...