Kontron ETX-DC - Manual (Page 21)

ETX-DC®/ ETX® Connectors
16
3.3V Power Supply for External Components
The ETX®-DC offers the ability to connect external 3.3V devices to the onboard-generated supply voltage. Pin 12 and
Pin 16 of Connector X1 are used to connect to the +3.3V ±5% power supply. The maximum external load is 500mA.
Contact Kontron Embedded Systems Technical Support for help with this feature.
Warning: Do not connect 3.3 V pins to external 3.3 V supply.
For additional information, refer to the ETX® Design Guide, I2C application notes, and JIDA specifications, all of
which are available on the Kontron Embedded Systems Web site.
4.4 Connector X2 (ISA Bus)
Pin Signal Pin Signal Pin Signal Pin Signal
1 GND 2 GND 51 VCC * 52 VCC *
3 SD14 4 SD15 53 SA6 54 IRQ5
5 SD13 6 MASTER# 55 SA7 56 IRQ6
7 SD12 8 DREQ7 57 SA8 58 IRQ7
9 SD11 10 DACK7# 59 SA9 60 SYSCLK
11 SD10 12 DREQ6 61 SA10 62 REFSH#
13 SD9 14 DACK6# 63 SA11 64 DREQ1
15 SD8 16 DREQ5 65 SA12 66 DACK1#
17 MEMW# 18 DACK5# 67 GND 68 GND
19 MEMR# 20 DREQ0 69 SA13 70 DREQ3
21 LA17 22 DACK0# 71 SA14 72 DACK3#
23 LA18 24 IRQ14 73 SA15 74 IOR#
25 LA19 26 IRQ15 75 SA16 76 IOW#
27 LA20 28 IRQ12 77 SA18 78 SA17
29 LA21 30 IRQ11 79 SA19 80 SMEMR#
31 LA22 32 IRQ10 81 IOCHRDY 82 AEN
33 LA23 34 IO16# 83 VCC * 84 VCC *
35 GND 36 GND 85 SD0 86 SMEMW#
37 SBHE# 38 M16# 87 SD2 88 SD1
39 SA0 40 OSC 89 SD3 90 NOWS#
41 SA1 42 BALE 91 DREQ2 92 SD4
43 SA2 44 TC 93 SD5 94 IRQ9**
45 SA3 46 DACK2# 95 SD6 96 SD7
47 SA4 48 IRQ3 97 IOCHK# 98 RSTDRV
49 SA5 50 IRQ4 99 GND 100 GND
Notes: *To protect external power lines of peripheral devices, make sure that:
- The wires have the right diameter to withstand the maximum available current.
- The enclosure of the peripheral device fulfils the fire-protection requirements of IEC/EN60950
** IRQ9 is used for SCI in ACPI mode. Do not use for legacy ISA devices.