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F20 Datasheet, PDF (8/111 Pages) List of Unclassifed Manufacturers – 8-ch normal DMA controllers and 8-ch dedicated DMA controllers
Boxchip F20 Datasheet
1. Introduce
The F20 is a 16/32-bit RISC microprocessor, which is designed to provide a cost-effective,
low-power capabilities, high performance processor for video application and general
application. The F20 is developed with ARM926-EJS core with separated 16KB instruction
and 16KB data caches. To reduce total system cost, the F20 includes the following
components.
2. Feature List
The system includes the following feature:
 Around 400MHz@1.3V, 533MHz@1.4V ARM926-EJS Core with 16KB I-Cache/16KB
D-Cache
 16/32-bits SDRAM controller support SDR SDRAM, DDR SDRAM, DDR2 SDRAM and
LPDDR SDRAM
 8-ch normal DMA controllers and 8-ch dedicated DMA controllers
 8 UARTs with 64 Bytes TX FIFO and 64 Bytes RX FIFO, 1 UART with full modem
function, 2 UARTs with RTS/CTS hardware flow control, others are two wire UARTs
 3 SPI controller, 1 dedicated SPI controller for serial NOR Flash boot application,
others are for general applications
 2 PS2 controller for connecting external PS2 mouse and PS2 keypad
 CAN bus controller for automotive and general industrial environments
 3 Two Wire Interface, its speed can up to 400K
 Key Matrix (8x8) with internal debounce filter
 IR controller support SIR, MIR, FIR and IR remoter
 Smart Card Read controller for security application
 8-bits NAND Flash Controller with 8 chip select and 2 r/b signals
 1 high-speed Memory controller supports SD version 3.0 and MMC version 4.2
 3 normal Memory controller supports SD version 2.0 and MMC version 4.0
 Memory Stick Host Controller supports memory stick version 1.0 and memory stick
PRO
 ATA controller used for IDE hard disc or CF card
 3 USB 2.0 OTG controller for general application
 10/100M Ethernet MAC compatible with IEEE802.3 standard
 Transport stream controller for DTV application
 I2S/PCM controller for 8-channel output and 2-channel input
 AC97 controller compatible with AC97 version 2.3 standard
 Internal 24-bits Audio Codec for 2 channel headphone, 2 channel microphone and 2
channel FM/Linen input
 Internal 6-bits LRADC for line control
 Internal 4-wire touch panel controller for touch application
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