Aaeon FWS-7820, User Manual, Page: 133 / 135

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FWS
-7820
behavior to LAN kit, when WDT triggered.
0: Normal WDT reset (Default)
1: Force Bypass
ACT_EN
Use for activating programming of LAN
kit. It is edge triggering (falling edge 1 to
0) and should be set to high(1) as its
normal state.
Table3: LAN Bypass register mapping table
CPLD Slave Address 0x90 (Note1)
Attribute Offset(SMBUS) BitNum Value
LAN_ID3 R/W 0x01(Note2) 3 (Table 1)
LAN_ID2 R/W 0x01(Note2) 2 (Table 1)
LAN_ID1 R/W 0x01(Note2) 1 (Table 1)
LAN_ID0 R/W 0x01(Note2) 0 (Table 1)
PWR_ON R/W 0x01(Note2) 6 (Table 2)
PWR_OFF R/W 0x01(Note2) 5 (Table 2)
WDT_EN R/W 0x01(Note2) 4 (Table 2)
ACT_EN R/W 0x01(Note2) 7 (Table 2)
Sample Code
*****************************************************************************************
#define Byte CPLD_SLAVE_ADDRESS //This parameter is represented from Note1
#define Byte OFFSET
//This parameter is represented from Note2
*****************************************************************************************
// Select Lan Pair
BYTE bLanSel = LAN_PAIR;
BYTE bData = SmbusReadByte(CPLD_SLAVE_ADDRESS, OFFSET);
// Set Reg01h bit3
if(bLanSel & 0x08)
bData = bData | 0x08;
else
bData = bData & 0xF7;
// Set Reg01h bit2
if(bLanSel & 0x04)
Appendix C – Standard Firewall Platform Setting 120