MCIMX23LEVKJ Freescale Semiconductor, MCIMX23LEVKJ Datasheet - Page 15

• Manufacturer Part Number: MCIMX23LEVKJ
• Description: KIT EVALUATION IMX233
• Manufacturer: Freescale Semiconductor
• Series: i.MX23r
• Type: MCUr

Specifications of MCIMX23LEVKJ

• Contents: Board
• Processor To Be Evaluated: ARM926EJ-S
• Processor Series: i.MX233
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 5 V
• For Use With/related Products: i.MX23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.1.1
The i.MX23 EVK is normally set to Boot according to the selection made on S36. It is possible
to force the EVK to ignore the settings of S36 and boot from the mode programmed into the
i.MX23 chip itself by moving Resistor R10 to the R15 pads. Table 2.2 shows the valid
combinations of the switches.
Freescale Semiconductor
LED10
LED11
JP121
JP122
JP123
LED5
LED8
3.3V SPI Flash 1 Master
Boot Mode Device
Boot Mode Switches
USB (Recovery)
3.3V I2C Master
3.3V SD/MMC
3.3V NAND
Optional USB 5V
Current Measurement
Header
Optional 5V Source
Header
CPLD Activity LED
PWM0 Activity LED
PWM1 Activity LED
DEBUG
OFFBOARD DEBUG
Header
Power Available LED
i.MX23 EVK Hardware User’s Guide, Rev 1.1
Table 2.2 Boot Mode Settings
LCD_D03
User can cut the traces between the two pins, install a 2 x 1 Header
pins and attach a current probe between the pins to readily measure
current drawn through the USB_5V header.
This header allows customers to connect wires from customer
designed prototype boards to enable the EVK to act as the
communication path for JTAG and UART Debug signals. The
Prototype board PWM0 signal connects to Pin 1. The Prototype
board PWM1 signal connects to Pin 2. The Prototype board DEBUG
signal connects to Pin 4. The Prototype board PSWITCH signal
connects to Pin 5. The ground connection between the two boards
is made through Pin 6. Pin 3 is an optional 3.3V reference pin that
can be used as a 3.3V source by the prototype board, or can
indicate to the prototype board that the Debug system is powered
on. Signal to and from this header are enabled by switches S22
(DOWN) and S23 (RIGHT).
User can cut the traces between the pins 1 - 2, install a 3 x 1
Header and use the header to select the source of 5V power to the
i.MX23 IC. The two available choices are through the USB Micro AB
connector or from the attached 5.0V DC Power Supply.
Indicates when JTAG traffic is being passed to the i.MX23 IC. When
off, JTAG communications are idle. When solid on, a JTAG
communications link has not been established between the external
JTAG IC and the i.MX23 IC.
Indicates when i.MX23 is receiving traffic over the Debug Serial
Communications Port. When the receive line is idle and i.MX23 is
powered up, this LED is normally solid ON.
Indicates when i.MX23 is transmitting traffic over the Debug Serial
Communications Port. When the i.MX23 IC is powered up but not
transmitting data, this LED is normally solid ON.
LED turns on when External 5.0V DC Power Supply is attached.
0
0
0
0
0
1
LCD_D02
0
0
1
1
0
0
LCD_D01
0
0
0
1
0
1
LCD_D00
0
1
0
0
1
0
2-5