Smc-Specific Registers; Smc Controller Status Register 0 (Icsta0) - Kontron CP308 User Manual

Configuration
4.4

SMC-Specific Registers

The following registers are special registers which the CP308 uses to monitor and configure
the System Management Controller.
4.4.1

SMC Controller Status Register 0 (ICSTA0)

The SMC Controller Status Register 0 holds the bit for selecting the SPI Flash and provides
status information about basic reset and power management settings from the SMC controller.
Table 4-20: SMC Controller Status Register 0 (ICSTA0)
REGISTER NAME
ADDRESS
BIT NAME
7 HFSEL SPI boot Flash selection:
0 = Select default boot Flash device
1 = Select alternative boot Flash device
6 - 3 Res. Reserved
2 HPWRB Power button signal to chipset:
0 = No power button signal to the chipset
1 = Power button signal generated to the chipset
1 HRST Host reset (edge-sensitive reset):
0 = No host reset
1 = Host reset generated
0 HPGD Power-on host reset (cold reset / level-sensitive reset):
0 = No power-on host reset
1 = Power-on host reset generated
Note ...
This register can be configured only by the SMC controller and is set to the
default values by power-on reset, not by PCI reset.
Page 4 - 20

SMC CONTROLLER STATUS REGISTER 0 (ICSTA0)

0x29D
DESCRIPTION
CP308
RESET
ACCESS
VALUE
0 R
0000 R
0 R
0 R
0 R
ID 1027-4487, Rev. 3.0