MCIMX23LCD Freescale Semiconductor, MCIMX23LCD Datasheet - Page 12

• Manufacturer Part Number: MCIMX23LCD
• Description: MODULE LCD IMX233 4.3" WQVGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX23r
• Type: Applications Processorsr

Specifications of MCIMX23LCD

• Contents: Board
• Processor To Be Evaluated: ARM926EJ-S
• Processor Series: i.MX233
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet, UART
• Core: ARM926EJS
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 5 V
• Silicon Manufacturer: Freescale
• Core Architecture: ARM
• Core Sub-architecture: ARM9
• Silicon Core Number: I.MX2
• Silicon Family Name: I.MX23
• Kit Contents: I.MX23 WVGA 4.3" LCD
• Rohs Compliant: Yes
• Tool Type: Development Kit
• Cpu Core: ARM926EJ-S
• For Use With/related Products: ARM926EJ-S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 2.1 describes the switches and connectors
2-2
Identifier
S12
S14
S22
S23
S24
S25
S26
S27
S1
S2
Hold Switch
Power Button
Power Source Select
Switch
USB Power Select
Switch
SJTAG Debug Switch
DEBUG UART Switch
Reset Button
Recovery Button
Right Navigation
Button
User Definable Key2
Button
i.MX23 EVK Hardware User’s Guide, Rev 1.1
Component
Table 2.1 EVK Board, Top Components
Connected to the end of a resistive tree network of resistors and UI
buttons, the switch creates a specific voltage level sensed by
LRADC0 which causes the i.MX23 IC to ignore other changes until
the sense voltage returns to the hold OFF voltage level.
Connected to the PSwitch input pin of i.MX23 IC, momentarily
pressing the button, causes the chip to begin its boot up process.
Holding the button down for more than 100 msec at start up will
have the same effect as pressing the Recovery Button.
When switched to the left (REG), simulated 4.2V Battery Power is
supplied to the i.MX23 device to allow battery powered operations.
When switched to the right (BATT), a Li-ION Battery attached to
either J13 or J21 supplies power to the i.MX23 IC. When no Battery
is attached, this switch can be used to remove power to the i.MX23
IC. This is a break before make switch.
This double-pole, double-throw switch can remove USB 5V power
supplied by a host to the i.MX23 IC by moving the switch to the OFF
(down) position. Normal operation is when the switch is ON (up).
This switch is allows the user to effectively remove USB without
having to pull the cable.
When in the UP position, this double-pole, double-throw switch
connects the output of the CPLD Serialized JTAG signal to the
Debug pin of the i.MX23 IC and also connect the output reset signal
from the CPLD to the PSWITCH pin of the i.MX23 IC. When in the
DOWN position, both circuits are disconnected from the i.MX23 IC,
and are instead routed to header JP122 for use in debugging
customer prototype boards.
When in the LEFT Hand position, this switch connects the
DUART_RX (PWM0) and the DUART_TX (PWM1) pins of the
i.MX23 IC to the DUART connector. When in the RIGHT Hand
position, the DUART signals from the i.MX23 IC on the EVK are
disconnected from the DUART connector, and instead, RX and TX
signals from a customer prototype board are routed from header
JP122 to the UART driver IC and 9- DSUB connector.
Resets the EVK by shorting the Y3 crystal to ground, effectively
turning off the internal DC-DC converters. If the USB 5V rail is
connected to a 5V source, the EVK will restart. If not connected to a
5V source, the EVK requires the Power Button to be pressed to
restart the board.
Connected to the PSwitch input of the i.MX23 IC, the Recovery
Button will provide an elevated voltage level which will override the
Boot Mode Switch settings and force the i.MX23 IC to boot in USB
Recovery Mode when connected to a USB host.
Connected to the resistive tree network of resistors and provides a
specific voltage level sensed by LRADC0. Button definition is user
configurable by making software changes.
Connected to the resistive tree network of resistors and provides a
specific voltage level sensed by LRADC0. Button definition is user
configurable by making software changes.
Description
Freescale Semiconductor