User Manual

GE863-PRO
3
Product Description
80285ST10036a Rev. 1 DRAFT- 24/04/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 33 of 53
4.7 IIC bus
The IIC bus interconnects components on a two-wire bus, made up of one clock line and one data line
with speeds of up to 400 Kbits per second, based on a byte-oriented transfer format.
The IIC is programmable as a master or a slave with sequential or single-byte access. Multiple master
capability is supported. Arbitration of the bus is performed internally and puts the IIC in slave mode
automatically if the bus arbitration is lost.
A configurable baud rate generator permits the output data rate to be adapted to a wide range of core
clock frequencies.
4.8 ISO7816 T0/T1 Interface
The ARM9 USART can be used according to ISO7816 T0/T1 operating mode. This mode permits
interfacing with Smart cards and Security Access Modules (SAM) communicating through an ISO7816
link. Both T = 0 and T = 1 protocols defined by the ISO7816 specification are supported.
4.9 MultiMedia Card interface
The Application processor provides a full MCI interface.
The MultiMedia Card Interface (MCI) supports the MultiMedia Card (MMC) Specification V3.11, the
SDIO Specification V1.1 and the SD Memory Card Specification V1.0. The MCI operates at a rate of
up to 100 MHz and supports the interfacing of 2 slot(s).
Each slot may be used to interface with a MultiMediaCard bus (up to 30 Cards) or with a SD Memory
Card. Only one slot can be selected at a time (slots are multiplexed).
The SD Memory Card communication is based on a 9-pin interface (clock, command, four data and
three power lines) and the MultiMedia Card on a 7-pin interface (clock, command, one data, three
power lines and one RFU).
The SD Memory Card interface also supports MultiMedia Card operations.
4.10 Sinchronous Serial Controller
The application processor provides a Sinchronous serial controller that can support several serial
synchronous communication protocols such as: I2S, Short Frame Sync, Long Frame Sync.
With this peripheral the processor can be interfaced with Audio Codecs, Fast DAC, Fast ADC.