ST10F269ZX datasheet(101/184 Pages) STMICROELECTRONICS

101 / 184 page

ST10F269

14 - SERIAL CHANNELS

101/184

14.2 - High Speed Synchronous Serial Channel

(SSC)

The High-Speed Synchronous Serial Interface

SSC

provides

flexible

high-speed

serial

communication between the ST10F269 and other

microcontrollers,

microprocessors

external

peripherals.

The SSC supports full-duplex and half-duplex

synchronous communication. The serial clock

signal can be generated by the SSC itself (master

mode) or be received from an external master

(slave mode). Data width, shift direction, clock

polarity and phase are programmable.

This allows communication with SPI-compatible

devices. Transmission and reception of data is

double-buffered. A 16-bit Baud rate generator

provides the SSC with a separate serial clock

signal. The serial channel SSC has its own

dedicated 16-bit Baud rate generator with 16-bit

reload capability, allowing Baud rate generation

independent from the timers.

Figure 46 : Synchronous Serial Channel SSC Block Diagram

Baud Rate Generator

SSC Control

Block

Internal Bus

Clock Control

CPU

Clock

Slave Clock

Master Clock

SCLK

Shift

Clock

Status

Control

Receive Interrupt Request

Transmit Interrupt Request

Error Interrupt Request

16-Bit Shift Register

Control

MTSR

MRST

Transmit Buffer

Receive Buffer

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