Smc-networks SpacePC 1232 Series Instrukcja Użytkownika Pobierz pdf (Strona 69)

Watchdog time-out pin

For external control purposes, the status of the watchdog time-out event is provided to connector

J11 pin 9. This signal goes high when the watchdog resets the system. The software can reset

this signal by setting and resetting bit 2 of the I/O port 110h. This signal is also initialized by

hardware at power-on.

The following example shows how to reset the watchdog time-out pin:

MOV DX, 110h ; Control Port

IN AL, DX ; Read actual value

OR AL, 04h ; Mask reserved bits and set bit 2

OUT DX, AL ; Write new value

AND AL, FBh ;

Mask reserved bits and reset bit 2

OUT DX, AL ; Write new value

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 86 87

USER MANUAL 1
Table of Contents 3
Chapter 1 Product Overview 6
3.3V Bus 7
(SMC FD37B782) 7
Product Definition 8
Peripherals 9
VGA interface 9
LCD-TFT interface 10
Connectors Layout 13
J1 and J2 for the ISA Bus 15
Multifunction 17
Connector 17
PS/2 Mouse 19
Parvus Multifunction Adapter 20
Parallel 22
To the Parallel Port 24
To the FDD Cable/Connector 24
Power Supply 24
GND PIN1 24
+5V PIN2 24
Serial 2 25
Serial 1 25
J7 for 2 x USB 26
AC97 Audio 27
Line OUT 28
J9 IDE Connector 29
JP10 IDE LED Connector 30
J10 VGA Connector 31
Auxiliary 32
Ethernet 34
RJ45 Connector 35
To CPU Board 35
J19 LCD-TFT Section 36
Chapter 4 The Setup Program 39
How to use the Setup program 40
The Setup pages 41
General Page 42
Floppy disks 1..4 43
Expansion Socket 43
DiskOnChip Map 44
Keyboard 44
Quick Boot 44
Devices Page 45
Floppy Controller 46
EIDE Port 46
Video Memory 46
Network Adapter 47
Communications Page 48
Serial Ports 1 and 2 49
Parallel Port 50
ATAPI Units Page 51
ATAPI unit type 52
PIO Mode 52
Error Handling Page 54
Power Management 55
Solid State Disk 57
OPTIONS EXPLANATION 59
Serial VP cable (*) 63
Parallel VP cable (*) 63
Important note 65
Chapter 7 Watchdog Timer 66
Watchdog modalities 67
Advance Information” 68
Watchdog time-out pin 69
Chapter 8 Troubleshooting 70
Technical/Sales Assistance 72
Returning For Service 73
Appendix 74
Absolute Maximum Ratings 75
Power Consumption 75
A.2 Mechanical Dimensions 76
3.0 12.7 77
USB Audio CODEC Dimensions 78
Ethernet Adapter Dimensions 79
Dimensions are in inches 80
A.3 Safety Summary 81
Reliability 83
Life Support Policy 83
Acronyms and Abbreviations 85
FEDERAL COMMUNICATIONS 86
COMMISSION RADIO FREQUENCY 86
INTERFERENCE STATEMENT 86

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