RDA5981C DATASHEET.pdf-资料库

RDA5981C IEEE 802.11b/g/n MCU WIFI Rev1.1 PRELIMINARY DATA SHEET Revision: 1.1 Release date: 10 Feb 2017 RDA5981C IEEE802.11b/g/n MCU WIFI The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 1 of 16

RDA5981C IEEE 802.11b/g/n MCU WIFI Rev1.1 1. General Description RDA5981C is a low power MCU with IEEE802.11b/g/n MAC/PHY/radio integrated into one chip. TCP/IP protocols along with SSL are included, providing improved link robustness, extended range, and increased performance. For the highest integration level, the required board space has been minimized and customer cost has been reduced. Manufacturers can easily and fast integrate RDA5981C on their product to enable a rapid time to market. RDA5981C uses a compact 5×5mm² QFN package, 0.4mm pitch QFN-40. 1.1 WLAN Features  CMOS single-chip fully-integrated radio, PHY and MAC  2.4GHz IEEE 802.11b/g/n  Internal PA, LNA  Data rates up to 150Mbps with 20/40 MHz bandwidth  Dynamic TX power saving  Low power listen mode  Fast AGC control  Support WPS, WMM  Support WPA, WPA2, WEP, TKIP, CCMP  Support STA, softAP, P2P, STA+softAp, STA+P2P  Support A-MPDU, A-MSDU, HT-BA  Light Weight TCP/IP protocol 1.2 MCU Features  Integrated ARM-CM4 MCU, Maximum clock Frequency 160MHz  Integrated MPU and mbed uvisor supported to isolate security domains  Up to 448KBytes internal sram for WIFI  Support external psram interface  Integrated 32Mbit SPI flash in package  Integrated a bunch of configurable level/edge external GPIOs with trigger/wakeup protocol and application developments  Integrated UART×2/I2S×2/I2C×1  SPI / UART / USB2.0 interface allows simple interfacing to host device  UART with an AT command set  Integrated hardware crypto accelerator AES/RSA  Integrated true random number generator (TRNG) and CRC accelerator /PWM×8/SPI×4/SDMMC×1/USB2.0×1  Integrated 2 channels application ADC  Integrated watchdog and low power timer  16×16 bits eFuse configuration  Support freeRTOS/mbedOS5.1 The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 2 of 16

RDA5981C IEEE 802.11b/g/n MCU WIFI Rev1.1 1.3 Applications  IOT devices  Smart home  Wi-Fi speaker/home audio  Smart watch The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 3 of 16

RDA5981C IEEE 802.11b/g/n MCU WIFI Rev1.1 2. Block Description Figure2-1 RDA5981C Block Diagram The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 4 of 16 UARTCortexM4FPU/MPUOn-chip ROMOn-chip RAM802.11 b/g/nHT20/40MAC/BB802.11 b/g/nHT20/40RF/PA/LNAPMU/RTChardware crypto accelerator AES/RSA/TRNGIRADCGPIOI2SI2CSPISDMMCUSB2.0PWMPSRAM_IFSPIFLASH_IF

RDA5981C IEEE 802.11b/g/n MCU WIFI Rev1.1 3. Functional Description 3.1 Memory System RDA5981C integrates ROM, internal RAM and SPI nor flash to provide applications with a variety of memory requirements. 3.1.1 Memory Map Table 3-1 RDA5981C Memory Map Component Address Range Size comments MEMORY BOOT_ROM 0x0000_0000-0x0000_FFFF I_SRAM 0x0010_0000-0x0011_FFFF D_SRAM 0x0018_0000-0x001A_7FFF 0x1000_0000-0x13FF_EFFF data 0x1400_0000 - 0x15FF_FFFF FLASH data 32M 0x1800_0000-0x1FFF_FFFF I-cache PSRAM FLASH I-cache LOGIC SCU GPIO 0x40000000-0x40000FFF 0x40001000-0x40001FFF TIMER 0x40002000-0x40002FFF I2C_master 0x40003000-0x40003FFF PWM 0x40004000-0x40004FFF PSRAM_CFG 0x40005000-0x40005FFF SDMMC 0x40006000-0x40006FFF I2C 0x40010000-0x40010FFF UART1 0x40012000-0x40012FFF AHB_EXIF 0x40013000-0x40013FFF WIFI_PA 0x40020000-0x40021FFF WIFI_CE 0x40022000-0x40022FFF WLAN_MON 0x40024000-0x40027FFF SDIO USB 0x40030000-0x40030FFF 0x40031000-0x40031FFF MEMC0 0x40100000-0x4017FFFF UART2 0x40180000-0x40180FFF DMA_CFG 0x40181000-0x40181FFF 64K 128K 160K 64M 4K 4K 4K 4K 4K 4K 4K 4K 4K 4K 8K 4K 20K 4K 4K 512k 4K 4K The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 5 of 16

RDA5981C IEEE 802.11b/g/n MCU WIFI Rev1.1 3.1.2 Internal ROM RDA5981C integrates internal ROM to provide basic functions:  eFuse functions  USB/SPI interface initialization  MCU/Wi-Fi mode initialization 3.1.3 Internal RAM RDA5981C integrates:   192K Bytes SRAM for user 32K Bytes icache 3.1.4 SPI Nor FLASH RDA5981C supports standard SPI mode and SPI-Quad mode and integrated 32Mbit flash in package. 3.2 GPIO Characteristics Table 3-2 GPIO Configurable Function Summary Table 3.3 UART Interface Characteristics RDA5981C supports 2 UARTs with configurable baud rate from 1200bps to 4Mbps. The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 6 of 16

RDA5981C IEEE 802.11b/g/n MCU WIFI Rev1.1 3.4 I2S Interface Characteristics RDA5981C supports 2 I2S the I2S master BCLK supports 96/192/384/512/ 44.1/88.2KHz. The interface supports 16/32 bit per channel, the data format can be configured as 16/20/24bit per channel or decided by software (up to 24bit per channel). interface; 3.5 I2C Interface Characteristics RDA5981C supports 1 I2C standard interface. It supports master or slave I2C operation and 3 standard speed modes: 1. Standard mode (<100Kb/s) 2. Fast mode (<400Kb/s) 3. High-speed mode (<3.4Mb/s) 3.6 PWM Interface Characteristics RDA5981C supports 8 PWM interfaces. Period and Duty of PWM is programmable. The Duty of PWM/PWT/PWL can be flexible configured between 0~100. The accurate of duty is 1%.The period are programmable, the software can select different clock to product long Period. Table 3-3 PWM Period & Duty Name Number Duty PWM PWT LPG PWL 4 1 1 2 1~100% 1~100% <25% Period 5us-256s 5us-4s <2s 1~100% - Standard PWM Standard PWM The wave has a short pull up in a long period The wave is non-periodic, use for screen background light 3.7 SPI Interface Characteristics RDA5981C supports 4 SPI interfaces, master only. The SPI clock rate is programmable and up to 20MHz. The data length can be configured by the software, the max data length is 64bit. The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 7 of 16

RDA5981C IEEE 802.11b/g/n MCU WIFI Rev1.1 3.8 SDMMC Interface Characteristics RDA5981C supports 1 SDMMC interface. 3.9 USB Interface Characteristics RDA5981C supports USB interface. The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of RDA. Page 8 of 16

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