WE865-DUAL HW User Guide
1vv0300787
Rev. 1 - 03/10/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 31 of 48
8.2 SDIO signals
A 4-data bit SDIO interface is available on the WE865-DUAL that must be connected to the host
processor (Telit GE863-PRO
3
).
The WE865-DUAL SDIO voltage levels are fully compatible with the GE863-PRO
3
I/O voltage levels.
47 Ohm series resistor on each SDIO line and 12pF capacitor on clock line must be inserted in order
to avoid noise (see Electrical design guidelines chapter). Refer to block diagram in Figure 7.
Figure 11
