Overview

STn8810

10/15

1.25

I²C bus interface

The STn8810 provides two I²C bus interfaces that support the following features:

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Slave transmitter/receiver and master transmitter/receiver modes

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Multi-master capability

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10-bit addressing

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Standard (100 kHz) and fast (400 kHz) speeds

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Compliance with I²C and DDC standards

In addition to receiving and transmitting data, the interface converts data from serial to

parallel format and vice-versa using an interrupt or polled handshake. The interrupts are

enabled and disabled in software.

1.26

Fast IrDA interface (FIrDA)

This interface supports IrDA half-duplex communications. It performs modulation and

demodulation of infrared signals, and the wrapping of IrLAP frames. The IrDA interface

supports the following infrared modes and baud rates:

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Serial infrared (SIR): 9.6 Kbit/s, 19.2 Kbit/s, 38.4 Kbit/s, 57.6 Kbit/s and 115.2 Kbit/s

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Medium infrared (MIR): 576 Kbit/s and 1.152 Mbit/s

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Fast infrared (FIR): 4 Mbit/s

1.27

Multichannel serial ports (MSP)

The STn8810 provides three multichannel serial ports. These are synchronous receive and

transmit serial interfaces that support a data rate of up to 48 Mbit/s with the following

features:

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Philips I²S format: left aligned with one cycle between leading edge of frame

synchronization and first data bit, 16 or 24 bits per sample

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Sony format: right aligned, 48 cycles per frame, 16 or 24 bits per sample

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Matsushita format: right aligned, 64 cycles per frame, 16 or 24 bits per sample

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Programmable number of bitclock cycles per frame: 32, 48 or 64

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Programmable polarity of bitclock and frame synchronization

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Programmable number of bits per sample: 16, 18, 20 or 24 bits

It also provides:

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µ-Law and A-Law compressing/expanding

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Independent framing and clocking for receive and transmit

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External shift clock or an internal, programmable frequency shift clock for data transfer

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Support for DMA transfers

1.28

High-speed serial interface (HSI)

The STn8810 includes a full-duplex high-speed serial interface (MIPI legacy HSI). This high-

speed, 8-channel modem interface operates at up to 108 Mbit/s.