Analog Devices Blackfin Landscape LCD EZ-Extender ADZS-BFLLCD-EZEXT, Руководство пользователя

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Blackfin Landscape LCD EZ-Extender Manual 2-9
Landscape LCD EZ-Extender Hardware Reference
AD7879 PENIRQ Jumper (JP10)
The AD7879
PENIRQ
jumper (
JP10
) connects the interrupt pin of the Ana-
log Devices AD7879 LCD touch controller (
U1
) to one of three GPIO
pins of the Blackfin processor.
JP10
adds flexibility to the extender: you
can choose any one of the available GPIO pins (
GPIO1—3
). By default,
JP10
is populated so that the
GPIO1
pin of the expansion interface II or the PPI
stamp connector can be used to connect to the AD7879 Penirq pin (see
Table 2-9 ).
AD7147 INT Jumper (JP11)
The AD7147
INT
jumper (
JP11
) connects the interrupt pin of the Analog
Devices AD7147 capacitive touch controller (
U3
) to one of three GPIO
pins of the Blackfin processor.
JP11
adds flexibility to the extender: you
can choose any one of the available GPIO pins (
GPIO1—3
). By default,
JP11
is populated so that the
GPIO2
pin of the expansion interface II or the PPI
stamp connector can be used to connect to the AD7147 interrupt pin (see
Table 2-10 ).
Table 2-9. JP10 Settings
Functionality JP10 Setting
AD7879 PENIRQ connects to GPIO1 JP10.1 and JP10.2 (default)
AD7879
PENIRQ
connects to
GPIO2 JP10.3
and
JP10.4
AD7879
PENIRQ
connects to
GPIO3 JP10.5
and
JP10.6
Table 2-10. JP11 Settings
Functionality JP11 Setting
AD7147
INT
connected to
GPIO1 JP11.1
and
JP11.2
AD7147 INT connected to GPIO2 JP11.3 and JP11.4 (default)
AD7147
INT
connected to
GPIO3 JP11.5
and
JP11.6