Software-Controlled Switches (SoftConfig)
Table 2-9
and
Table 2-10
expander (
), with a TWI address of 0100 011X, where X represents the
U47
read or write bit. The signals that control an individual FET have an entry
under the FET column. The Component Connected column shows the
board IC that is connected if the FET is enabled.Note that some of the
Microchip (
) output signals are connected directly to components on
U47
the board. However, in most cases, the Microchip (
enable signal of a FET switch. Also note that if a particular functionality
of the processor signal is being used, it will be in bold font under the Pro-
cessor Signal column.
Table 2-9. Output Signals of Microchip GPIO Expander
(U47 Port A)
Bit Signal Name
0
PHYINT_EN 1
1
PHY_PWR_DWN_INT 2
2
PHYAD0 3
3
ETHERNET_EN
4
WAKE_PUSHBUTTON_EN
5
PD0_SPI0D2_
EPPI1D16_SPI0SEL3_
EI3_EN
2-16
show the output signals of the Microchip GPIO
Description
FET Processor Signal
Connects Ethernet 0
U35
interrupt signal to
Ethernet PHY, con-
nected by default
Controls power down
of the Ethernet PHY if
PHYINT_EN high
Allows the PHY to be
placed in isolate mode
Disconnects EMAC0
signals from U49
Enables push button
U7
input to processor
Connects processor sig-
U36
nal to EI3 connectors,
disabled by default
ADSP-BF609 EZ-KIT Lite Evaluation System Manual
) is controlling the
U47
Component
(if applicable)
Connected
/
PD06
ETH0_PHY-
U49
INT/PPI1_
FS2/TM0_ACI5
U49
U49
U4/U5
PE12/ETH1_PHY-
U1
INT/PWM1_
CL/RSI0_D5
PD00/SPI0_
EI3
D2/PPI1_
D16/SPI0_SEL3
Default
Low
High-Z
High-Z
Low
High
High
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