Configuration
AM4011
Page 4 - 12
ID 1022-1626, Rev. 1.0
P R E L I M I N A R Y
4.4.7
Host I/O Status Register
The Host I/O Status Register describes the onboard and AMC control signals.
4.4.8
Host I/O Configuration Register
The Host I/O Configuration Register holds a series of bits defining the onboard configuration.
4.4.9
Board ID Register
This register provides the coded ID for the board which is unique for the AM4011.
Table 4-14: Host I/O Status Register
REGISTER NAME
HOST I/O STATUS REGISTER
ADDRESS
0x286
BIT
NAME
DESCRIPTION
RESET
VALUE
ACCESS
7-6
Res. Reserved
00
R
5-4
FBSTA
Firmware Hub boot status
00 = Boot from FWH0
01 = Boot from FWH1
10 = Boot from LPC FWH
00
R
3-0
DIPS
DIP Switch configuration
1111
R
Table 4-15: Host I/O Configuration Register
REGISTER NAME
HOST I/O CONFIGURATION REGISTER
ADDRESS
0x287
BIT
NAME
DESCRIPTION
RESET
VALUE
ACCESS
7-6
Res.
Reserved
0
R
5
FSEL
Firmware Hub selection
0 = Default FWH boot device is active
1 = Select second FWH boot device
0
R/W
4-0
Res.
Reserved
00000
R
Table 4-16: Board ID Register
REGISTER NAME
BOARD I/D REGISTER
ADDRESS
0x288
BIT
NAME
DESCRIPTION
RESET
VALUE
ACCESS
7-0
BID
Board identification
0xAF = AM4011
0xAF
R/W
