User's Manual

Interface Locations and Pinouts
1322x Sensor Node Reference Manual, Rev. 1.1
4-6 Freescale Semiconductor
4.9 FLASH Memory Recovery Jumpers and Erase
The MC1322x has an onboard serial FLASH that stores the memory image that gets loaded into RAM at
boot. If it becomes necessary to change or update the image in FLASH, there are two possible means of
doing so:
• JTAG Debug Port - Using the JTAG debug port and the ARM debug tools, the FLASH image can
be changed.
• Load new FLASH image via UART1 port -
NOTE
The 1322x Sensor Node provides access for UART1 through the USB
connection. If users need to employ UART1 with the Test Tool running on
a PC, they must access the UART through the USB port as a virtual COM
port.
— The Freescale BeeKit IDE suite download provides a software tool called “Test Tool”. This
application runs on a PC and can be used with a client running on the MC1322x to test the
platform.
9 ADC5 ADC Analog Input Channel or GPIO Hardwired to pressure out.
10 DAC_OUT Serial DAC Output Jumper J7 selects DAC output as audio output source
11 SSI_TX SSI Port or GPIO Hardwired to serial DAC
12 SSI_RX SSI Port or GPIO
13 SSI_FSYN SSI Port or GPIO Hardwired to serial DAC
14 SSI_BITCLK SSI Port or GPIO Hardwired to serial DAC
15 KBI_0_HST_WK Hardwired to “center” on joystick
16 KBI_4 Hardwired to “right” on joystick and SW1
17 UART2_TX UART2 or GPIO
18 UART2_RX UART2 or GPIO
19 UART2_RTS UART2 or GPIO
20 UART2_CTS UART2 or GPIO
21 I2C_SCL I
2
C Port or GPIO Hardwired to audio volume circuit. MAX5434L device has
I
2
C address 0x50
22 I2C_SDA I
2
C Port or GPIO Hardwired to audio volume circuit. MAX5434L device has
I
2
C address 0x50
23 SPI_SCK SPI Port or GPIO
24 SPI_SS SPI Port or GPIO
25 SPI_MOSI SPI Port or GPIO
26 SPI_MISO SPI Port or GPIO
Table 4-4. GPIO Connector J2 Pinouts (continued)