Carrier Board phyCORE-PXA270
28
©
PHYTEC Meßtechnik GmbH 2006 L-668e_1
AC97ENA is an output that extends to the expansion socket of the
AC97 interface. This is provided so that the expansion circuitry
supply voltage can be turned off or switched to power down mode.
The connections have to be made on the AC97 expansion board.
Refer
to section 12 for more details on this AC97 expansion connector.
REG
ADDR
D7-D4
D3
D2
D1
D0
CTRL 9
0x04000012
Res Res
AC97 ENA
/FL_DIS
FL_WP
RW
R/W=0 R/W=0
R/W
R/W R
Signal
Name
/ENA_AC97 FL_DIS
FL_/WP_PEN
Table 16:
PLD U7 Control Register 9
FL_WP
NOTE
: When using the J3D Flash type on the
phyCORE-PXA270 this signal is hard wired to
VCC (logic high). This bit has no function in this
case.
FL_DIS
This bit can be used to disable the on-board Flash
on the phyCORE-PXA270.
AC97_ENA
This bit controls an output signal routed to the
AC97 expansion connector. It can be used to turn
the supply voltage for an AC97 module connected
to X24 on or off.
Содержание phyCORE-PXA270
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