SC6-TANGO • CompactPC® Serial • Intel® Atom™ E39xx Processor (APL-I SoC)
Board Control and Status Registers (BCSR)
A set of board control and status registers allow to program special features on the SC6-TANGO:
•
Assert a full reset
•
Control activity of front panel reset and power event button
•
Program time-outs and trigger a watchdog
•
Get access to two LEDs in the front panel
•
Get power fail and watchdog status of last board reset
The register set consists of five registers located on the SMBus at Device ID=0x5c on the following
addresses:
•
0xA0: CMD_CTRL0_WR: Write to Control Register 0 (Write-Only)
•
0xA1: CMD_CTRL0_RD: Read from Control Register 0 (Read-Only)
•
0xB0: CMD_STAT0_WR: Write to Status Register 0 (Write-Clear)
•
0xB1: CMD_STAT0_RD: Read from Status Register 0 (Read-Only)
•
0xB2: CMD_STAT1_WR: Write to Status Register 1 (Write-Clear)
•
0xB3: CMD_STAT1_RD: Read from Status Register 1 (Read-Only)
•
0xC1: CMD_PLDREV_RD: Read from PLD Revision Register (Read-Only)
To prevent misfunction accesses to the registers should be done by SMBus “Byte Data”
commands. Further writes to read-only or reads to write-only registers should be omitted.
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