Page 1
TEK-AT2
80386SX AT SINGLE BOARD COMPUTER
HARDWARE REFERENCE MANUAL
VERSION 3.3, MARCH 1996
TEKNOR INDUSTRIAL COMPUTERS INC.
616 Cure Boivin
Boisbriand, Quebec
J7G 2A7 CANADA
NOTE:
This manual is for reference purposes only. Reproduction in whole or in
part is authorized provided TEKNOR INDUSTRIAL COMPUTERS INC.
is cited as the original source.
ref: M701S_3-3
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INTRODUCTION 1
INTRODUCTION SECTION 1
The TEK-AT2 is a high performance PC/AT type
computer on a half-card format (7" x 4.7"). It
integrates all the basic functions available on an IBM
AT - like a hard disk interface and a floppy disk
controller.
Best of all, the TEK-AT2 is designed to operate in
environments where a sturdy and compact system is
essential. So elements such as a watchdog timer, solid
state disks, and a power failure detector were added to
make the TEK-AT2 perform even in the most extreme
industrial applications.
Built using CMOS technology, the TEK-AT2
consumes very little power. Typically, less than 7.5
watts. The TEK-AT2 is also a versatile board. It can
be installed in a PC passive backplane or, because of its
small size, it can be used as a stand-alone controller by
utilizing the four standard mounting holes and separate
power connector.
And to top it off, an XT expansion header
accommodates TEKNOR's TEK-PG VGA LCD/EL
series of display controllers or other optional expansion
cards.
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2 TEK-AT2 REFERENCE MANUAL
Here are more exciting features found on the TEK-AT2
single board computer:
• PC/AT bus or
stand alone
operation
• 80386SX @
25Mhz
• 512K, 1, 2, 4, 10
or 16M of system
memory with
mixed DRAM
support
• Up to 2M of user
EPROM/Flash
EPROM
• Up to 1M user
RAM with battery
backup
• Supports Shadow
RAM BIOS for
fast execution
• Flash EPROM
boot
• Real-time clock
with battery
backup
• Optional 80387SX
coprocessor
support
• AT keyboard and
speaker port
• One parallel
printer port
(LPT1)
• Two serial
ports with COM2
as RS232 or
RS485
• Watchdog Timer
• Power Fail
Detector
• Onboard floppy
controller: drives
two floppies
• Onboard IDE hard
disk interface
• CMOS technology
for low power
• Two year Quality
Warranty
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CONFIGURATION SECTION 2
JUMPERS
The TEK-AT2 was designed to allow for minimal
hardware configuration.
The following Jumpers can be configured by using
shorting jumpers.
JUMPER
1
STATE FUNCTION
Flash EPROM Type
W1(1-2) 29F040 Devices Only
* as shipped
2
W1(2-3) 28F010, 28F020 Devices Only*
RAM Battery Backup
3
W2 Open* NC
W2 Closed Vbatt
Hard Disk Interface
W3 Open* IDE Enabled
W3 Closed IDE Disabled
Watchdog Timer
W4 Open Disable
W4 Closed* Enable
1W2A is not used. Do not install shorting jumpers.
2
Devices expected to be available 4Q93
3
Vbatt must be installed to save configuration information
at power down.
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8 TEK-AT2 REFERENCE MANUAL
Power Monitoring
W5 Open* Disable
W5 Closed Enable
Flash EPROM
W6 Open No Flash
W6 Closed* Flash Installed
RAM Disk Memory Type
W7(A-B) 32K x 8, 128K x 8 SRAM*
W7(B-C) 256K x 8, 512K x 8 SRAM
Boot From Flash EPROM
SW1(1-2) Open* Boot From Drives
SW1(1-2) Closed Boot From Flash
Color/Monochrome
SW1(3-4) Open* Mono, EGA, VGA
SW1(3-4) Closed Color CGA Only
Console Is VT100 Terminal
SW1(5-6) Open* Standard Display Mode
SW1(5-6) Closed VT100 Mode
Remote Download
SW1(7-8) Open* Normal
SW1(7-8) Closed Serial Download Mode
Refer to
locations.
Diagram 2-1
and
Table 2-1
for exact jumper
Page 6
CONFIGURATION 11
DIAGRAM 2-1 JUMPER LOCATIONS
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SPECIFICATIONS 57
Icc typ.
Icc stby.
Ipp +12V
Ipp -12V
SPECIFICATIONS SECTION 7
DC CHARACTERISTICS
Supply Voltage Vcc min.: 4.75V
Vcc max.: 5.25V
+12V: +/-5%
-12V: +/-5%
Supply Current Standard PC/AT Application
7
25 Mhz
950mA
200mA
10mA
5mA
7This current was measured with 4 Mbytes of DRAM, 1 Mbyte
of User Flash EPROM, 256K SRAM, along with hard disk,
floppy disk, keyboard and monitor installed.
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58 TEK-AT2 REFERENCE MANUAL
Icc typ.
Icc stby.
Ipp +12V
Ipp -12V
Embedded Application
25 Mhz
600ma
200ma
40ma
5ma
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature:
0
0
C to 700C
0
-40
C to +850C Available
Non-Condensing relative humidity:
5% to 95%
8
8 This current was measured with 4 Mbytes of DRAM, 1 Mbyte of User Flash EPROM, and 256K SRAM only.
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SPECIFICATIONS 59
DIAGRAM 7-1 MECHANICAL
SPECIFICATIONS
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60 TEK-AT2 REFERENCE MANUAL
DIAGRAM 7-2 ASSEMBLY
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SPECIFICATIONS 61
DIAGRAM 7-3 BLOCK DIAGRAM
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62 TEK-AT2 REFERENCE MANUAL
PIN NUMBER
SIGNAL FLOW
GND
-12V
PIN NUMBER
SIGNAL FLOW
SPKR
KBDINH
AUTO*
PBRES*
ACT*
CONNECTOR OVERVIEW
J5 POWER CONNECTOR
SIGNAL SIGNAL
VCC - 1 2 - GND
- 3 4 - +12V
- 5 6 - PD
J3 KEYBOARD CONNECTOR
SIGNAL SIGNAL
PIN NUMBER
SIGNAL FLOW
PIN NUMBER
SIGNAL FLOW
KBDCLK O 1 2 - GND
KBDDATA O 3 4 - GND
VCC - 5 6 - VCC
O 7 8 - VCC
I 9 10 - GND
I 11 12 - GND
I 13 14 - GND
O 15 16 - VCC
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J7 PRINTER CONNECTOR
PIN NUMBER
SIGNAL FLOW
STB*
I/O
P1
I/O
I/O
I/O
I/O
I/O
I/O
I/O
SLCT
ERR*
SLIN*
GND
GND
GND
GND
SIGNAL SIGNAL
SPECIFICATIONS 63
PIN NUMBER
SIGNAL FLOW
O 1 2
3 4
P3
P5
P7
BUSY I 11 12 I PE
5 6
7 8
9 10 I ACK*
I 13 14 O AFD*
I 15 16 O INIT*
O 17 18 - GND
- 19 20 - GND
- 21 22 - GND
- 23 24 - GND
- 25
P0
P2
P4
P6
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64 TEK-AT2 REFERENCE MANUAL
PIN NUMBER
SIGNAL FLOW
DCD
GND
RI
PIN NUMBER
SIGNAL FLOW
DCD
DTR
GND
J6 COM1 CONNECTOR
SIGNAL SIGNAL
I 1 2 I RX
TX O 3 4 O DTR
O 5 6 I DSR
RTS O 7 8 I CTS
I 9
J4 COM2 CONNECTOR/RS232
SIGNAL SIGNAL
PIN NUMBER
SIGNAL FLOW
PIN NUMBER
SIGNAL FLOW
I 1 2 I DSR
RX I 3 4 O RTS
TX O 5 6 I CTS
O 7 8 I RI
- 9
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J4 COM2 CONNECTOR/RS485
PIN NUMBER
SIGNAL FLOW
RESERVED
RXD(-)
I/O
I/O
TXD(-)
GND
SIGNAL SIGNAL
- 1 2 I NC
3 4
O 5 6 I TXD(+)
NC O 7 8 I NC
I 9
SPECIFICATIONS 65
PIN NUMBER
SIGNAL FLOW
RXD(+)
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66 TEK-AT2 REFERENCE MANUAL
J8-J9 PC BUS CONNECTOR
A Side B Side
I/O PIN
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
Signal Name I/O
I/O CH CK*
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
I/O CH RDY*
AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
O
I/O PIN
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
Signal Name I/O
GND
RESET DRV
+5 Vdc
IRQ9
-5 Vdc
DRQ2
-12 Vdc
OWS
+12 Vdc
GND
SMESW*
SMEMR*
IOW*
IOR*
DACK3*
DRQ3
DACK1*
DRQ1
REFRESH*
CLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2*
T/C
BALE
+5 Vdc
OSC
GND
Ground
Power
Power
Power
Power
Ground
I/O
I/O
I/O
Power
Ground
O
I
I
I
O
O
O
I
O
I
O
I
I
I
I
I
O
O
O
O
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C Side D Side
I/O PIN
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18
Signal Name I/O
SBHE
LA23
LA22
LA21
LA20
LA19
LA18
LA17
MEMR*
MEMW*
SD08
SD09
SD10
SD11
SD12
SD13
SD14
SD15
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O PIN
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
SPECIFICATIONS 67
Signal Name I/O
MEM CS16*
I/O CS16*
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
DACK0*
DRQ0
DACK5*
DRQ5
DACK6*
DRQ6
DACK7*
DRQ7
+5Vdc
MASTER*
GND
I
I
I
I
I
I
I
O
I
O
I
O
I
O
I
POWER
I
Ground
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68 TEK-AT2 REFERENCE MANUAL
J9A MEZZANINE CARD CONNECTOR
A Side B Side
I/O PIN Signal Name
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
I/O CH CK*
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
I/O CH RDY*
AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
PIN Signal Name
B1
I
I
O
2
B2
4
B3
6
B4
8
B5
10
B6
12
B7
14
B8
16
B9
18
B10
20
B11
22
B12
24
B13
26
B14
28
B15
30
B16
32
B17
34
B18
36
B19
38
B20
40
B21
42
B22
44
B23
46
B24
48
B25
50
B26
52
B27
54
B28
56
B29
58
B30
60
B31
62
GND
RESET DRV
+5 Vdc
IRQ9
-5 Vdc
DRQ2
-12 Vdc
OWS
+12 Vdc
GND
SMESW*
SMEMR*
IOW*
IOR*
DACK3*
DRQ3
DACK1*
DRQ1
REFRESH*
CLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2*
T/C
BALE
+5 Vdc
OSC
GND
I/O
Ground
O
Power
I
Power
I
Power
I
Power
Ground
O
O
I/O
I/O
O
I
O
I
I/O
O
I
I
I
I
I
O
O
O
Power
O
Ground
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SPECIFICATIONS 69
J2 FLOPPY DISK CONNECTOR PIN OUT
Pin Number
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
1-33 (ODD)
Signal Flow
O
-
I
O
O
O
O
O
O
O
O
I
I
I
O
I
-
Signal
RPM/LC
N.C.
N.C.
INDEX*
MOTRENA*
DRIVESB*
DRIVESA*
MOTRENB*
DIRC*
STEP*
WRITE DATA*
WRITE ENABLE*
TRACK0*
WRITE PROTECT*
READ DATA*
HEAD SELECT*
DCHG
GND
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70 TEK-AT2 REFERENCE MANUAL
J1 HARD DISK CONNECTOR PIN OUT
Pin Number
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
23
25
33
35
36
37
38
31
32
39
20
21
34
2,19,22,24
26,30,40
Signal Flow
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
I
I
I
I
I
O
O
O
-
-
-
-
Signal
SD7
SD8
SD6
SD9
SD5
SD10
SD4
SD11
SD3
SD12
SD2
SD13
SD1
SD14
SD0
SD15
RST*
IOW*
IOR*
SA1
SA0
SA2
CS0*
CS1*
IRQ14
I/OCS16*
ACTIVE*
KEY (NOT CONNECTED)
RESERVED (NOT CONNECTED)
PDIAG
GND
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