r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 41

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Item
Synchronized serial
I/O with FIFO
(SIOF)
Serial protocol
interface (HSPI)
Multimedia card
interface (MMCIF)
Audio codec
interface (HAC)
Features
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Number of channels: One (max.)
Supports full-duplex operation
Separate 64-byte (32 bits x 16) FIFOs for transmission and reception
Supports the input and output of 8-/16-bit monaural and 16-bit
stereophonic audio data
Method of synchronization selectable as frame synchronization pulses or
left/right channel switching
Allows connection of linear, audio, A-law, or μ-Law CODEC chip
Select an on-chip peripheral clock or input on an external pin as base for
the sampling-rate clock
Maximum sampling rate: 48 kHz
On-chip prescaler that uses the on-chip peripheral clock
Number of channels: One (max.)
Supports full-duplex operation
Master/slave mode
Selectable bit rate generated by the on-chip baud-rate generator
Number of channels: One (max.)
Supports a subset of version 3.1 of the multimedia card system
specification
Supports MMC-mode operation
Interfaces with MMCCLK output (transfer clock output), MMCCMD I/O
(command output/response input), and MMCDAT I/O (data I/O) pins
Number of channels: Two (max.)
Digital interface for audio codecs
Supports transfer via slots 1 to 4
Choice of 16- or 20-bit DMA transfer rates for transmission/reception
Supports various sampling rates by adjusting the allocation of data to
slots
Rev.1.00 Jan. 10, 2008 Page 11 of 1658
REJ09B0261-0100
1. Overview