Freescale Semiconductor Daughter Card for DEMOEM DCF51EM256 DCF51EM256 Manual De Usuario
Los códigos de productos
DCF51EM256
DEMOEM User Manual
27
Figure 7-8: SPI Port Header
7.5
EEPROM Enable
The DEMOEM includes a serial SPI memory for non-volatile data storage.
Header J14 configures control signals for the EEPROM IC (U4).
Header J14 configures control signals for the EEPROM IC (U4).
Figure 7-9: EEPROM Enable (J14)
7.6
LED Display Port
The DEMOEM has 4 LEDs connected to signals PTE4, PTE5, PTA5, and
PTA6 that may be driven by 5V. They can be enabled or disabled by installing
or removing the corresponding jumpers, J15 & J41, in the LED_EN header.
PTA6 that may be driven by 5V. They can be enabled or disabled by installing
or removing the corresponding jumpers, J15 & J41, in the LED_EN header.
7.6.1
J15 - LED Display Enable Port Port 1 LED_ENABLE1
Enables port connections PTE5 and PTE4 to LED circuits. This is the default
setting.
setting.
Figure 7-10: LED Display Enable Header LED_EN (J15)