Control Register 1 (Ctrl1) - Kontron CP308 User Manual

Configuration
4.3.4

Control Register 1 (CTRL1)

The Control Register 1 holds board-specific control information.
Table 4-7:

Control Register 1 (CTRL1)

REGISTER NAME
ADDRESS
BIT NAME
7 - 6 VGAM VGA Mode Configuration:
00 = Automatic VGA Front Detection
01 = Front VGA (uEFI BIOS default)
10 = Rear VGA
11 = VGA disabled
5 SSATA SATA4/5 routing selection:
0 = Rear I/O
1 = 8HP expansion module
4 CRST CPCI reset in peripheral slot:
0 = Disable CPCI reset to board
1 = Enable CPCI reset to board
3 Res. Reserved
2 SCOM1 COM1 routing selection:
0 = Rear I/O
1 = 8HP expansion module
1 - 0 Res. Reserved
Note ...
The reset value of the SSATA and SCOM1 bits depends on the board version
ordered. If the CP308 is ordered as a rear I/O version, the reset value is 0. If the
CP308 is ordered as a front I/O version, an automatic switch over to the 8HP
expansion module is processed per default.
Page 4 - 8
CONTROL REGISTER 1 (CTRL1)
0x283
DESCRIPTION
CP308
RESET
ACCESS
VALUE
N/A R/W
N/A R/W
(see note
below)
0 R/W
0 R
N/A R/W
(see note
below)
00 R
ID 1027-4487, Rev. 3.0