User manual
Table Of Contents
- PCA-6011
- Contents
- 1 Hardware Configuration
- 1.1 Introduction
- 1.2 Features
- 1.3 Specifications
- 1.4 Jumpers and Connectors
- 1.5 Board Layout: Jumper and Connector Locations
- 1.6 PCA-6011 Block Diagram
- 1.7 Safety Precautions
- 1.8 Jumper Settings
- 1.9 System Memory
- 1.10 Memory Installation Procedures
- 1.11 Cache Memory
- 1.12 Processor Installation
- 1.13 Power Model Setting and Installation
- 1.14 ATX Mode
- 2 Connecting Peripherals
- 2.1 Introduction
- 2.2 IDE Connectors (IDE1)
- 2.3 Floppy Drive Connector (FDD1)
- 2.4 Parallel Port (LPT1)
- 2.5 VGA Connector (VGA1)
- 2.6 Serial Ports (COM1, COM2)
- 2.7 PS/2 Keyboard and Mouse Connector (KBMS1)
- 2.8 External Keyboard & Mouse (KBMS2)
- 2.9 CPU Fan Connector (CPUFAN1)
- 2.10 Front Panel Connectors (JFP1, JFP2, JFP3)
- 2.11 H/W Monitor Alarm (JOBS1)
- 2.12 LAN RJ45 connector (LAN1/LAN2)
- 2.13 HD Link connector (HDAUD1)
- 2.14 Serial ATA2 Interface (SATA1 ~ SATA4)
- 2.15 LAN LED connector (LAN LED1)
- 2.16 USB (USB12, USB34, USB56, USB78)
- 2.17 Case open (JCASE1)
- 3 AMI BIOS Setup
- 3.1 Introduction
- 3.2 Entering Setup
- 3.2.1 Main Setup
- 3.2.2 Advanced BIOS Features Setup
- 3.2.3 PCI/PNP Setup
- 3.2.4 Boot Settings
- 3.2.5 Security Settings
- 3.2.6 Advanced Chipset Settings
- 3.2.7 Exit Options
- 4 Chipset Software Installation Utility
- 5 VGA Setup
- 6 LAN Configuration
- A Programming the Watchdog Timer
- B I/O Pin Assignments
- B.1 IDE Hard Drive Connector (IDE1)
- B.2 Floppy Drive Connector (FDD1)
- B.3 Parallel Port Connector (LPT1)
- B.4 VGA Connector (VGA1)
- B.5 RS-232 Serial Port (COM1, COM2)
- B.6 PS/2 Keyboard/Mouse Connector (KBMS1)
- B.7 External Keyboard Connector (KBMS2)
- B.8 CPU Fan Power Connector (CPUFAN1)
- B.9 Power LED and Keyboard Lock Connector (JFP3 / PWR_LED & KEY LOCK)
- B.10 External Speaker Connector (JFP2 / SPEAKER)
- B.11 Reset Connector (JFP1 / RESET)
- B.12 HDD LED (JFP2 / HDDLED)
- B.13 ATX Soft Power Switch (JFP1 / PWR_SW)
- B.14 SM Bus Connector (JFP2/SNMP)
- B.15 HD Link connector (HDAUD1)
- B.16 LAN LED Connector (LAN LED1)
- B.17 AT Power Connector (ATXF1)
- B.18 H/W Monitor Alarm (JOBS1)
- B.19 USB Connector (USB12, USB34, USB56, USB78)
- B.20 Case Open Connector (JCASE1)
- B.21 GPIO Pin Header (GPIO1)
- B.22 System I/O Ports
- B.23 DMA Channel Assignments
- B.24 Interrupt Assignments
- B.25 1st MB Memory Map
- B.26 PCI Bus Map
PCA-6011 User Manual 66
A.1 Programming the Watchdog Timer
The PCA-6011 watchdog timer can be used to monitor system software operation
and take corrective action if the software fails to function within the programmed
period. This section describes the operation of the watchdog timer and how to pro-
gram it.
A.1.1 Watchdog timer overview
The watchdog timer is built in to the super I/O controller W83627DHG-P. It provides
the following functions for user programming:
Can be enabled and disabled by user's program.
Timer can be set from 1 to 255 seconds or 1 to 255 minutes.
Generates an interrupt or reset signal if the software fails to reset the timer
before time-out.
A.1.2 Jumper selection
The JWDT1 jumper is used to select reset in the event the watchdog timer is tripped.
See Chapter 1 for detailed jumper settings.
A.1.3 Programming the Watchdog Timer
The I/O port address of the watchdog timer is 2E(hex) and 2F(hex).
2E (hex) is the address port. 2F(hex) is the data port. You must first assign the
address of the register by writing an address value into address port 2E (hex), then
write/read data to/from the assigned register through data port 2F (hex).