Samsung S5PC100 User Manual page 17

PRODUCT OVERVIEW
3.8 SYSTEM PERIPHERAL
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Real Time Clock
♦ Full clock features: sec, min, hour, date, day, month, year
♦ 32.768kHz operation
♦ Alarm interrupt
♦ Time-tick interrupt
•
PLL
♦ Four on-chip PLLs, APLL/MPLL/EPLL/HPLL
♦ APLL dedicates to ARM core
♦ MPLL generates a system bus clock and several special clocks
♦ EPLL generates several special clocks
♦ HPLL generates clocks for the HDMI interface
•
Keypad
♦ 8x8 Key Matrix support
♦ Provides internal de-bounce filter
•
Timer with Pulse Width Modulation
♦ 5-ch 32-bit internal timer with interrupt-based operation
♦ 3-ch 32-bit Timer with PWM
♦ Programmable duty cycle, frequency, and polarity
♦ Dead-zone generation
♦ Support external clock source
•
System timer
♦ Accurate timer providing exact 1ms tick at any power mode except sleep.
♦ Changeable interrupt interval without stopping reference tick timer
•
DMA
♦ Micro-code programming based DMA
♦ The specific instruction set provides flexibility for programming DMA transfers
♦ Linked list DMA function is supported.
♦ 3 Enhanced DMA embedded. 8 channels supported per each DMA so then totally 24 channels is
supported
♦ 1 Memory to memory type optimized DMA + 2 Peripheral to memory type optimized DMA
♦ M2M DMA supports up to 16burst, P2M DMA supports up to 8burst.
1.1-14
S5PC100 USER'S MANUAL (REV1.0)