Specifications

Wireless-Tag Technology Co., Ltd. V1.0.0
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http://www.wireless-tag.com
16
 Supports SPI Motorola mode
 Hardware CRC can achieve reliable communication
 CRC value can be transmitted as the last byte of TX mode
 CRC automatically performs an error check to the last received byte.
 Supports Rx and TxFIFO, depth is 16
 Supports DMA transfer
 Support SPI TI mode
 I2S features
 Simplex communication (only send or receive)
 Master or slave operation
 8-bit linear programmable frequency divider to achieve accurate audio sampling
frequency (from 8kHz to 968kHz)
 The data format is 16-bit, 24-bit or 32-bit
 Fixed data frame of audio channel is 16-bit (16-bit data frame) or 32-bit (16-bit, 24-bit,
32-bit data frame)
 Programmable clock polarity (steady state)
 Underflow flag for slave transmission mode and overflow flag for receiving function
(master or slave)
 16-bit transmit and receive registers, with one register at each end of the channel
 I2S protocol supported:
 I2S Philips standard
 MSB alignment standard (left alignment)
 LSB alignment standard (right alignment)
 PCM standard (16-bit channel frame with long or short frame synchronization or
16-bit data frame extended to 32-bit channel frame)
 Data direction is always MSB first
 Supports sending and receiving DMA (16 bits wide)
 The main clock can be output to an external audio component. The rate is fixed at 256
times FS (where FS is the audio sampling frequency)
 Supports TX and RX FIFO, depth is 16
 Provides 2-channel external clock inputs
4.19 Universal Asynchronous Receiver Transmitter(UART)
The Universal Asynchronous Receiver Transmitter (UART) offers a flexible means of full-duplex data
exchange with external equipment requiring an industry-standard NRZ asynchronous serial data format.