User Manual
Table Of Contents
- 1 Introduction
- 2 Unpacking
- 3 Installation
- 4 System Maintenance
- 5 AMI BIOS Setup
- 5.1 Introduction
- 5.2 Main
- 5.3 Advanced
- 5.4 iEi Feature
- 5.5 Chipset
- 5.6 Boot
- 5.7 Security
- 5.8 Save & Exit
- 6 Software Drivers
- 7 Interface Connectors
- 7.1 Peripheral Interface Connectors
- 7.2 Internal Peripheral Connectors
- 7.2.1 Audio Speaker-out Connector (CN3)
- 7.2.2 Audio MIC-in Connector (MIC1)
- 7.2.3 Audio DMIC-in Connector (DMIC1)
- 7.2.4 Battery Connector (CN1)
- 7.2.5 COM2 Connector (COM2)
- 7.2.6 CPU Fan Connector (CPU_FAN1)
- 7.2.7 DIO Connector (DIO1)
- 7.2.8 HDD LED Connector (HDD_CN1)
- 7.2.9 I2C Connector (CN4)
- 7.2.10 LVDS Connector (LVDS1)
- 7.2.11 LVDS Backlight Connector (INVERTER1)
- 7.2.12 MCU Connector (JP8)
- 7.2.13 MCU Connector (HOTKEY_CN1)
- 7.2.14 PCIe Mini Slot (M_PCIE1)
- 7.2.15 PCIe Mini Slot (M_PCIE2)
- 7.2.16 Power LED Connector (PW_LED1)
- 7.2.17 Power Button Connector (PW_BTN1)
- 7.2.18 SATA Power Connector (SATA_PWR1)
- 7.2.19 SATA Connector (SATA1)
- 7.2.20 Touch Panel Connector (TS1)
- 7.2.21 TTL Panel Connector (CN6)
- 7.2.22 USB Connector (USB1)
- 7.2.23 USB Connector (USB2)
- 7.2.24 USB Connector (USB3)
- 7.2.25 USB2 and USB3 Power Connector (JP18)
- 7.3 External Interface Panel Connectors
- 7.4 Preconfigured Jumper Settings
- A Safety Precautions
- B BIOS Configuration Options
- C Watchdog Timer
- D Hazardous Materials Disclosure
AFL-xxA-N26 Series Panel PC
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NOTE:
The following discussion applies to DOS environment. IEI support is
contacted or the IEI website visited for specific drivers for more
sophisticated operating systems, e.g., Windows and Linux.
The Watchdog Timer is provided to ensure that standalone systems can always recover
from catastrophic conditions that cause the CPU to crash. This condition may have
occurred by external EMI or a software bug. When the CPU stops working correctly,
Watchdog Timer either performs a hardware reset (cold boot) or a Non-Maskable Interrupt
(NMI) to bring the system back to a known state.
A BIOS function call (INT 15H) is used to control the Watchdog Timer:
INT 15H:
AH – 6FH Sub-function:
AL – 2: Sets the Watchdog Timer’s period.
BL: Time-out value (Its unit-second is dependent on the item “Watchdog
Timer unit select” in CMOS setup).
Table C-1: AH-6FH Sub-function
Call sub-function 2 to set the time-out period of Watchdog Timer first. If the time-out value
is not zero, the Watchdog Timer starts counting down. While the timer value reaches zero,
the system resets. To ensure that this reset condition does not occur, calling sub-function
2 must periodically refresh the Watchdog Timer. However, the Watchdog timer is disabled
if the time-out value is set to zero.
A tolerance of at least 10% must be maintained to avoid unknown routines within the
operating system (DOS), such as disk I/O that can be very time-consuming.