System description

STA2064

8/19

Doc ID 16057 Rev 1

2.6

Communication interfaces

2.6.1

USB

STA2064 embeds one USB2.0 OTG high-speed interface, featuring:

a)

High-speed signalling rate at 480 Mbit/s

b)

Support for full-speed (12 Mbit/s) signaling bit rate

c)

Support for session request protocol (SRP) and host negotiation protocol (HNP)

d)

Up to 7 bidirectional endpoints plus control endpoint 0

e)

8192 bytes maximum FIFO dimension

f)

Dynamic FIFO allocation

To reduce total system cost, it is equipped with a built-in USB 2.0 PHY.

With the goal of reducing the BOM cost for the customer, the USB 2.0 PHY also supports

this additional muxing scheme:

●

the USB D- wire is used as either the USB D- signal or UART receive data signal

●

the USB D+ wire is used as either the USB D+ signal or the UART transmit data signal

2.6.2

UART

STA2064 features three Autobaud UARTs. One offers all modem control/status signals.

They are enhanced version of the industry-standard 16C550 UART.

2.6.3

interfaces.

2.6.4

MSP

The multichannel serial port (MSP) is a synchronous receive and transmit serial interface.

STA2064 features three MSPs.

2.6.5

SSP

STA2064 features two SSPs up to 24Mbit/sec for synchronous serial communication with

external peripherals. SPI, MicroWire, T.I. and mono-directional protocols are supported with

programmable word length up to 32 bits.

2.6.6

SPDIF

This interface takes SPDIF as input and extracts data and other channel information

encrypted in SPDIF Frame format as per IEC958 standards. Data can be transferred to

memory, using DMA support, or directly to C3 decoder without CPU intervent. SPDIF block

supports up to 2X data streams.