User`s manual

High Performance Low Cost Embedded Systems
User Test Keys
The mini2440 has 6 test keys. They all are CPU interrupt input signals and will be triggered at a
low level voltage. They can also be multiplexed to GPIO and other function interfaces. To multiplex
them users can extend them through CON12. These 6 keys and CON12 are defined as follows:
K1 K2 K3 K4 K5 K6
Interrupt
EINT8 EINT11 EINT13 EINT14 EINT15 EINT19
Multiplexing
GPIO
GPG0 GPG3 GPG5 GPG6 GPG7 GPG11
Special Function
N/A
nSS1 SPIMISO1 SPIMOSI1 SPICLK1 TCLK1
Corresponding
CON12 pin
CON12.1 CON12.2 CON12.3 CON12.4 CON12.5 CON12.6
Notes: CON12.7 is the power supply (3.3V). CON12.8 is ground (GND)
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