Memory
Configuration
5.3.2
Compact Flash Interface
The PXA270 controller supports two PCMCIA interfaces. The second
interface is used on the Carrier Board as a CompactFlash socket. PLD
U6 provides all the control logic to operate the CompactFlash
interface. The connector is located on the corresponding Expansion
Board.
U S B
O T G
M u l t i M e d i a C a r d
C o m p a c t F l a s h - C a r d
D 5 D 4
D 2 D 1
T a s t e r R e s e t
G P I O - T a s t e r
D 3
S o u n d
Figure 17: Compact Flash Interface on the Expansion Board
The CompactFlash card is operated in TrueIDE mode. The interface is
decoupled from the buffered data and address bus on the Carrier
Board via 74LVC245 line driver ICs.
J15
J27
J3
U12
D7
U13
R60
U2
U22
U21
XT2
U10
J10
PXA270
XT1
U3
L1
J23
R103
J9
J21
Q6
J6
J32
X2
D6
Q1
U7
J30
R13
J16
J17
J29
U5
XT4
J26
U15
J11
U20
J2
J28
J19
J20
xData
xAddress
PCTRL
U6
D0-15
A0-25
Figure 18: Compact Flash Circuitry
©
PHYTEC Meßtechnik GmbH 2006 L-668e_1
37
Summary of Contents for phyCORE-PXA270
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