User`s guide

4-4 Intel
®
StrongARM
®
SA-1110 Microprocessor Development Board User’s Guide
Hardware Considerations
Development Module is not attached and the SA-1110 Development Board CF slot is active then
GPIO 21 and GPIO 22 are used as CF RDY interrupt signals and CF card detect interrupt while
GPIO 24 ad GPIO 24 are used as CF BVD2 and CF BVD1 inputs.
Note: The SA-1110 Development Board CF slot is addressed in the same address space as the SA-1111
Development Module’s CF and PCMCIA slots, however the CF slot control signals and interrupt
signals are not the same. Refer to the Intel
®
StrongARM
®
SA-1111 Companion Chip Developer’s
Manual for the details. Two versions of the CF drivers are required for the SA-1110 Development
Platform, one for the SA-1111 Development Module and one for the SA-1110 Development Board.
Several key functions available in CF devices are:
• Ethernet interface
• High speed modem
• Wireless one way and two way paging
• IBM micro-drives up to 340 Mbyte
• Bluetooth
1
RF modules
4.3 Intel
®
StrongARM
®
SA-1110 GPIO Usage
The SA-1110 Development Board system maps the SA-1110 GPIO pins as shown in Table 5-4.
The table shows the GPIO mapping of SA-1110 Development Board and previous Intel
®
StrongARM
®
development platforms for comparison and as an aid to OS and Angel porting.
1. For the phase 4 release of this document, formal Bluetooth interface specifications were not available. For more information, see section
Section 4.13.3.