Field Programmable Gate Array Registers
http://www.motorola.com/computer/literature
3-23
3
LAN B Control Register
Use the LAN B Control Register (LNBCTRL) to control the on-card LAN
B controller. Bits written can also read back. Refer to
LAN B ENABLE (Bit 7)
The BIOS uses this bit to enable LAN B.
❏
Write a logic 1 to this bit to disable LAN B.
❏
Write a logic 0 to this bit to enable LAN B so the operating system
and application code can us it.
The BIOS sets this bit according to CMOS setup.
FRONT (Bit 6)
The BIOS uses this bit to route the LAN B signals to either the front or the
rear connetors.
❏
Write a logic 1 to this bit to route LAN B signals to the rear
connector.
❏
Write a logic 0 to this bit to route LAN B signals to the front
connector.
The BIOS sets this bit according to CMOS setup.
Table 3-20. Bit descriptions for the LAN B register
7 (most
significant
bit)
6
5
4
3
2
1
0 (least
significant
bit)
ENABLE
FRONT
RES
RES
RES
RES
RES
RES
Solution Systems Technologies Inc.
720-565-5995 | info@solusys.com | www.solusys.com
Solution Systems Technologies Inc.
720-565-5995 | info@solusys.com | www.solusys.com