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S3C2440A RISC MICROPROCESSOR PRODUCT OVERVIEW
1-3
FEATURES (Continued)
Interrupt Controller
• 60 Interrupt sources
(One Watch dog timer, 5 timers, 9 UARTs, 24
external interrupts, 4 DMA, 2 RTC, 2 ADC, 1 IIC,
2 SPI, 1 SDI, 2 USB, 1 LCD, 1 Battery Fault, 1
NAND and 2 Camera), 1 AC97
• Level/Edge mode on external interrupt source
• Programmable polarity of edge and level
• Supports Fast Interrupt request (FIQ) for very
urgent interrupt request
Timer with Pulse Width Modulation (PWM)
• 4-ch 16-bit Timer with PWM / 1-ch 16-bit internal
timer with DMA-based or interrupt-based
operation
• Programmable duty cycle, frequency, and polarity
• Dead-zone generation
• Supports external clock sources
RTC (Real Time Clock)
• Full clock feature: msec, second, minute, hour,
date, day, month, and year
• 32.768 KHz operation
• Alarm interrupt
• Time tick interrupt
General Purpose Input/Output Ports
• 24 external interrupt ports
• 130 Multiplexed input/output ports
DMA Controller
• 4-ch DMA controller
• Supports memory to memory, IO to memory,
memory to IO, and IO to IO transfers
• Burst transfer mode to enhance the transfer rate
LCD Controller STN LCD Displays Feature
• Supports 3 types of STN LCD panels: 4-bit dual
scan, 4-bit single scan, 8-bit single scan display
type
• Supports monochrome mode, 4 gray levels, 16
gray levels, 256 colors and 4096 colors for STN
LCD
• Supports multiple screen size
– Typical actual screen size: 640x480, 320x240,
160x160, and others.
– Maximum frame buffer size is 4 Mbytes.
– Maximum virtual screen size in 256 color mode:
4096x1024, 2048x2048, 1024x4096 and others
TFT(Thin Film Transistor) Color Displays Feature
• Supports 1, 2, 4 or 8 bpp (bit-per-pixel) palette
color displays for color TFT
• Supports 16, 24 bpp non-palette true-color
displays for color TFT
• Supports maximum 16M color TFT at 24 bpp
mode
• LPC3600 Timing controller embedded for
LTS350Q1-PD1/2(SAMSUNG 3.5” Portrait /
256K-color/ Reflective a-Si TFT LCD)
• LCC3600 Timing controller embedded for
LTS350Q1-PE1/2(SAMSUNG 3.5” Portrait /
256K-color/ Transflective a-Si TFT LCD)
• Supports multiple screen size
– Typical actual screen size: 640x480, 320x240,
160x160, and others.
– Maximum frame buffer size is 4Mbytes.
– Maximum virtual screen size in 64K color mode :
2048x1024, and others
UART
• 3-channel UART with DMA-based or interrupt-
based operation
• Supports 5-bit, 6-bit, 7-bit, or 8-bit serial data
transmit/receive (Tx/Rx)
• Supports external clocks for the UART operation
(UEXTCLK)
• Programmable baud rate
• Supports IrDA 1.0
• Loopback mode for testing
• Each channel has internal 64-byte Tx FIFO and
64-byte Rx FIFO.