OEM638 Technical Specifications
Appendix E
OEM6 Family Installation and Operation User Manual Rev 12
180
56 USERIO15
3.3V CMOS IO
-
2
General Purpose IO (no internal pull if
resistor used as input)
58 USERIO16
3.3V CMOS IO
-
2
General Purpose IO (no internal pull if
resistor used as input)
60 USERIO17
3.3V CMOS IO
-
2
General Purpose IO (no internal pull if
resistor used as input)
62 USERIO18
3.3V CMOS IO
-
2
General Purpose IO (no internal pull if
resistor used as input)
64 USERIO19
3.3V CMOS IO
-
2
General Purpose IO (no internal pull if
resistor used as input)
66 USERIO20
3.3V CMOS IO
-
2
General Purpose IO (no internal pull if
resistor used as input)
68 USERIO21
3.3V CMOS IO
-
2
General Purpose IO (no internal pull if
resistor used as input)
70 nRESET_IN
3.3V CMOS Input
Active
Low
-
Internally pulled high. To reset, hold
below 0.4 V for a minimum of 1us.
Parallel connection to P4001.33.
72 GND
-
-
74 I2C3_SCL
Open Drain
IO
-
-
I
2
C Interface #3, internally pulled up
to 3.3 V.
(Note: I
2
C Address “1001 000” is
used internally.)
76 I2C3_SDA
Open Drain
IO
-
-
78 GND
-
-
80 HSUSB1_VBUS
USB
Input
-
-
Used by the card to monitor activity
on the USB1 interface. This pin
cannot supply current to hosted
devices but must be connected for
normal operation.
82 HSUSB1_VBUS_EN 3.3V CMOS Output
Active
High
3
Control for an external 5 V power
switch for USB1.
84 H
USB IO
-
-
The differential data pair for USB1.
86 HSUSB1_D-
USB
IO
-
-
88 Reserved
90 GND
-
-
92 GND
-
-
Pin
Signal Name
Signal Type
Signal
Direction
Polarity
Drive
Strength
(mA)
Description