MQ-1132 / SA Evaluation Board Users Guide
MediaQ Incorporated
Board Revision 2
Revision A
4/12/01
Preliminary
Touch Screen / MMC
The evaluation board supports two functions on the SPI interface. Only one device is selected at a time
by software setting two GPIO pins that control a multiplexer on the board. One of the functions is a touch
screen controller and the other is a Multi-Media Card (MMC) socket.
For the touch screen, two connectors are provided on the board to interface with various devices. J24
mates with the flat cable connected to the touch panel provided with the Sharp HR TFT display
(LQ039Q2DS54). To install the cable, pull out the sliding black portion of the socket, insert the cable
bare metal side up and then push the black portion back in locking the cable in place.
The other connector (J23) is a 1x4 0.1” standard header that can be used to interface to other touch
screens. A custom cable is required to connect a touch screen to J23. The pin out of this connector is
shown below (note, this touchscreen controller only supports standard 4-wire resistive touchscreens):
Pin
Signal
1
X-Plus
2
Y-Minus
3
X-Minus
4
Y-Plus
USB
Two USB connectors are provided on the evaluation board. CN2-1 is a Type A USB connector and
provides the USB Host functionality of the MQ-1132. CN1-1 is a Type B connector and provides the
USB Device function. Since the MQ-1132 USB device is a high speed device, CN1-1 is configured as
such.
Audio
The evaluation board supports audio input and playback/output. Audio input can come from any
amplified audio source and uses the Phone Jack J12. If a microphone is used it must be an amplified
version. Amplified audio output to headphones, amplified speakers or other destination is available on
the other Phone Jack at J13.
Power
Power is provided by the SA1110 Development Board connector and is regulated on the MQ-1132
Evaluation board. Headers (JP3 – JP8) can be installed (if missing) to allow power measurements of the
various blocks of the MQ-1132. Zero ohm resistors in parallel with these headers may be installed by
default instead of or in addition to the headers and must be removed in order to allow power
measurements.
RELATED DOCUMENTATION
•
MQ-1132 / SA Evaluation Board Schematics
•
MQ-1100/1132 LCD and Peripheral Controller Datasheet
•
Software release notes
