Hardware Specification
110120-1000A
17
Ethernet
An on-board Ethernet controller provides a 10/100 BT Ethernet port on
, page
. This
RJ-45 socket includes integrated magnetics and indicators. For a description of the
Ethernet LEDs, see
SD/MMC Interface
Two Secure Digital and MultiMediaCard (SD/MMC) sockets enable mass storage and I/O
and
, page
. These interfaces support Secure
Digital Memory (SD), Secure Digital I/O (SDIO), MultiMediaCard (MMC), and
synchronous serial (SPI) modes of operation. SD and SDIO cards can run in 4-bit, 1-bit,
and SPI modes. MMC cards run in 1-bit or SPI modes. This manual lists the signals for
use in 4-bit SDIO mode. Operating system drivers may not be available for all modes of
operation. Contact your local Eurotech technical support for driver availability for the
operating system that you are using.
The following table illustrates how the signals are mapped differently depending on the
mode of operation. Signal names and types denote the direction of the signal relative to
the GCM. Notice that the SD standard references SPI-mode signals with respect to the
card with pin 2 of the SD header listed as "Data In". This manual and PXA320
documents reference the signals with respect to the socket. In the table, pin 2 is listed as
"Data Out".
SD Socket
Eurotech
Name
Description
Pin Name
4-bit Mode
1-bit Mode
SPI Mode
1 DAT3 SD_DAT3 Data 3
IO unused
- MMC_CS1# O
2 CMD SD_CMD Command IO Command IO Data Out
O
3 VSS1 ground
-
P -
P -
P
4 VDD SD_PWR -
PO -
PO -
PO
5 CLK
SD_CLK
Clock
O Clock
O Clock
O
6 VSS2 ground
-
P -
P -
P
7 DAT0 SD_DAT0 Data 0
IO Data
IO Data In
I
8 DAT1 SD_DAT1 Data 1
IO Interrupt
I Interrupt
I
9 DAT2 SD_DAT2 Data 2
IO unused
- MMC_CS0# O
Pin 9 of an SD/MMC card is unused in SPI mode. Chip Select 0 is shown in this row to
illustrate the alternate signal mapping to SD_DAT2.
Some SD sockets supply the following signals, which are not part of the SD/SDIO
standard. These signals are connected on sockets J9 and J10.
SD Socket Pin
Eurotech Name
Description
Type
10
SD_CD#
Card Detect
I
11
SD_WP#
Write Protect
I
Power to the SD/MMC sockets is software-controlled. A standard GCM supports 3.3 V
cards. Support for 1.8 V cards is available as a volume production option.
Summary of Contents for PXA320
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