Kontron CP308 - Control Register 1 (CTRL1)

Configuration CP308
Page 4 - 8 ID 1027-4487, Rev. 3.0
P R E L I M I N A R Y
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 CONTROL REGISTER 1 (CTRL1)
ADDRESS 0x283
BIT NAME DESCRIPTION
RESET
VALUE
ACCESS
7 - 6 VGAM VGA Mode Configuration:
00 = Automatic VGA Front Detection
01 = Front VGA (uEFI BIOS default)
10 = Rear VGA
11 = VGA disabled
N/A R/W
5 SSATA SATA4/5 routing selection:
0 = Rear I/O
1 = 8HP expansion module
N/A
(see note
below)
R/W
4 CRST CPCI reset in peripheral slot:
0 = Disable CPCI reset to board
1 = Enable CPCI reset to board
0R/W
3 Res. Reserved 0 R
2 SCOM1 COM1 routing selection:
0 = Rear I/O
1 = 8HP expansion module
N/A
(see note
below)
R/W
1 - 0 Res. Reserved 00 R
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.