SH7205 Datasheet, PDF (915/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 19 Serial Sound Interface with FIFO (SSIF)
Section 19 Serial Sound Interface with FIFO (SSIF)
The serial sound interface with FIFO (SSIF) is a module designed to send or receive audio data
interface with various devices offering Philips format compatibility. It also provides additional
modes for other common formats, as well as support for multi-channel mode.
19.1 Features
• Number of channels: Six channels
• Operating mode: Non-compressed mode
The non-compressed mode supports serial audio streams divided by channels.
• Serves as both a transmitter and a receiver
• Capable of using serial bus format
• Asynchronous transfer takes place between the data buffer and the shift register.
• It is possible to select a value as the dividing ratio for the clock used by the serial bus interface.
• It is possible to control data transmission or reception with DMAC and interrupt requests.
• Selects the oversampling clock input from among the following pins:
EXTAL, XTAL (Clock operation modes 0 and 1: 10 to 33.33 MHz)
CKIO (Clock operation mode 2: 40 to 50 MHz*)
AUDIO_CLK (1 to 40 MHz)
AUDIO_X1, AUDIO_X2 (when connecting a crystal oscillator: 10 to 40 MHz, when used to
input external clock: 1 to 40 MHz)
Note: * Do not select CKIO as the supply source for the oversampling clock if the frequency
of CKIO is over 50 MHz and the mode is clock operating mode 2.
• Includes an 8-stage FIFO buffer for transmission and reception
Rev. 1.00 Mar. 25, 2008 Page 883 of 1868
REJ09B0372-0100