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DBPXA250 and DBPXA210 Development Platforms Specification Update 15
Intel
®
BBPXA2xx Development Baseboard
15. New Philips UCB1400 Audio Codec on BBPXA2xx Development Baseboard
Requires Software Change
Problem: There is a new revision of the Philips UCB1400 audio codec. BBPXA2xx development baseboards
are now using UCB1400 Rev 2A (CB0829). The previous revision of the UCB1400 is
Rev 1B
(CA5878).
There are software changes that are required to support the new revision of the
UCB1400.
Implication: Current production versions of BBPXA2xx development baseboards use the new revision of the
UCB1400.
Workaround: Versions of Windows CE and Diagnostic Manager released after April 1st, 2002 automatically
detect the revision of the UCB1400 and configure it accordingly. Users writing their own software
for the UCB1400 should refer to the latest Philips UCB1400 documentation to ensure they are
configuring the new revision appropriately.
Status: Fixed
Board Rev: Rev B
16. Conditional ECO To Use 3.3-V PCMCIA Cards
Problem: The BBPXA2xx development baseboard does not support 3.3-V PCMCIA cards because it has a
5-V PCMCIA slot.
Implication: 3.3-V PCMCIA cards cannot be inserted into the 5-V slot.
Workaround: Replace 5-V PC-card header connector (part #535651-1) on the BBPXA2xx I/O board with 3.3-V
PC-card header connector (part #535651-2).
Status: No Fix
Board Rev: Rev A and B
17. Conditional ECO To Use The Expansion Port J26
Problem: The BBPXA2xx development baseboard does not support interfacing to the expansion port J26.
The X-RDY signal is tied low via R76B. This renders the port inactive.
Implication: Users of the BBPXA2xx development baseboard cannot use the expansion bus for development.
Workaround: Remove R76B and update U46 with the latest CPLD code. Refer to http://developer.intel.com for
latest CPLD updates.
Status: No Fix
Board Rev: Rev A and B
18. Conditional ECO For USB “Soft Connect” Support
Problem: The UDC+ signal is pulled-up to 3.3 V via resistor R109B (bottom of the baseboard).
Implication: Development of applications using the USB “soft-connect” feature that are supported by some
operating systems cannot be developed on the BBPXA2xx development baseboard.
Workaround: Lift the 1.5-Kohm resistor, R109B (turn it side ways to disconnect it from +3.3 V). The 3.3 V side
is closest to the edge of the board and connect the wire from lifted side of this resistor to J20 pin5.
Status: No Fix
Board Rev: Rev A and B