System Architecture
2-4
ADSP-BF561 EZ-KIT Lite Evaluation System Manual
Programmable Flags
The processor has 48 programmable flag pins (PFs). Many of the flags
have a multiple functionality, depending on the processor’s setup.
shows how the programmable flag pins are used on the EZ-KIT
Lite.
Table 2-1. Programmable Flag Connections
Processor
PF Pin
Processor Function
EZ-KIT Function
PF0
SPI Select S, Timer 0 Serial clock for programming ADV7179 video encoder
and ADV7183A video decoder.
PF1
SPI Select 1, Timer 1
Serial data for programming ADV7179 video encoder and
ADV7183A video decoder.
PF2
SPI Select 2, Timer 2
ADV7183A video decoder’s
~OE
.
PF3
SPI Select 3, Timer 3
ADV7183A Field pin. See
PF4
SPI Select 4, Timer 4
AD1836A audio codec’s SPI Select.
PF5
SPI Select 5, Timer 5
Push Button (
SW6
). See
and
“Push Button Enable Switch (SW4)” on
for information on how to disable the push
button.
PF6
SPI Select 6, Timer 6
Push Button (
SW7
). See
and
“Push Button Enable Switch (SW4)” on
for information on how to disable the push
button.
PF7
SPI Select 7, Timer 7
Push Button (
SW8
). See
and
“Push Button Enable Switch (SW4)” on
for information on how to disable the push
button.
PF8
Push Button (SW9). See
and
“Push Button Enable Switch (SW4)” on
for information on how to disable the push
button.