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Architecture

• CPU

• RISC architecture, 32-bit data, 16/32-bit hybrid coding instruction;

• 3-level pipelines, maximum operating frequency: 160MHz;

• 32 32-bit general purpose registers, 16 fast interrupt general purpose registers;

• 16KB cache, four-way set associative, WB/WT supported;

• Hardware floating-point unit, single-precision floating-point numbers supported;

• Audio process unit;

• DSP extended instruction, hardware multiplier, multiplication quickly done in one cycle;

• Tightly-coupled system IP, including vector interrupt controller and timer;

• DSP

• 5-level pipelines, maximum operating frequency: 160MHz;

• 32bit/16bit multiplication: MAC16, MUL16, MUL32;

• 32bit integer division;

• Single-precision floating-point operation;

• Dedicated hardware audio acceleration engine;

• 32KB instruction/data Cache, WB/WT supported;

• Two Local SRAM, 128KB+64KB;

• Cortex-M0 core

• High performance 32bit Cortex-M0 core, maximum operating frequency: 80MHz;

• Embedded 8KB Cache, four address areas, independently configure;

• Supports frequency reduction, a quarter of maximum bus frequency;

Clock & Power Manager

• External 32.768KHz and 12MHz oscillators;

• Built-in RCL and RCH;

• Built-in System PLL, Audio PLL and USB1.1 PLL;

• Built-in double 1.2V LDO;

• RTC separately powered, with calendar function;

• Multi low-power operating modes supported, such as frequency reduction, stop mode. 

Memory Controller

• OTP

• 8KB capacity;

• Storing startup code, parameters, and key;

• SPI flash controller

• Supports SPI Flash 1/2/4-wire modes;

• Core runs directly in SPI Flash;

• SRAM

• Embedded 240KB SRAM, system 32KB+16KB, DSP 192KB;

• Supports Byte, Half-word, Word access;

• SDRAM controller

• High-efficiency SDRAM Interface, supports 16-bit data operating;

• Supports SDRAM low-power modes, such as self-refresh, power down, etc.;

• Packaged with 2MB SDRAM;

Peripherals

• I2S_I/O

• I2S_I/O1 supports 5.1 channel, others support 2.0 channel;

• Supports 24bit@192KHz;

• Supports clock Master and Slave modes;

• Supports PDMA mode;

• Audio CODEC

• Built-in two-set stereo Audio ADCs; SNR 100db (A-weight, Line in);

• Supports stereo analog MIC input and ALC;

• Built-in two-set stereo Audio DACs, SNR 100db(A-weight, Line out);

• USB_HS

• Built-in high-speed PHY;

• Compliance with USB2.0 standard, supports high speed, full speed, and low speed;

• Supports control, bulk, interrupt, and synchronous transfer;

• Built-in 2KB SRAM;

• Built-in Normal and Scatter-Gather DMA transfer;

• USB_FS

• Built-in full-speed PHY;

• Compliance with USB2.0 standard, supports full speed, and low speed;

• Supports control, bulk, interrupt, and synchronous transfer;

• Built-in 1KB SRAM;

• Built-in DMA transfer;

• SD/MMC/SDIO

• Compliance with SD2.0, MMC4.3, and SDIO2.0 standards;

• Supports 1 and 4-bit modes;

• Built-in Normal and chained DMA transfer;

• UARTx4

• 4 UART modules provided;

• High-speed UART1 integrated with 64-byte FIFO, UART2 with 8-byte FIFO, while UART3/4 with 16-byte FIFO;

• Programmable data bits and stop bit;

• Parity check supported or no check;

• Supports receiving/sending FIFO interrupt;

• PDMA mode supported by UART1;

• I2Cx2

• Supports standard speed, fast speed, and high speed modes;

• Supports Master and Slave modes; 

• SPI

• Supports SPI standard 4-wire protocol;

• Embedded independent 8x32 receive and send buffers;

• Supports PDMA mode;

• PWM

• Supports preset frequency division;

• 8-channel independent PWM outputs;

• 16-bit counting accuracy;

• ADC

• 7-channel analog inputs, 10bit accuracy;

• GPIO

• Two GPIO controllers;

• Independent pull-up resistor enable;

• Selectable drive strength (2/4/8/24mA)；

• Supports configurable interrupt of each IO, edge or level triggered; 

Built-in hardware modules

• xDMAC

• Two controllers, supports 12-channel (8+4) independent configurable channels maximum;

• Supports Normal and Scatter-Gather transfer modes;

• Supports Byte-, Half-word-, and Word- access;

• Supports source/destination address incrementing;

• Supports 16-channel data request channels;

• EQ acceleration engine IIR

• Timer

• Supports preset frequency division;

• Five-set independent counters;

• 32bit counting accuracy;