Samsung S3C2440A User Manual
Page 210
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S3C2440A RISC MICROPROCESSOR
CLOCK & POWER MANAGEMENT
7
-3
Nand Flash
Controller
OSC
MPLL
UPLL
CLKCNTL
FCLK
HDIVN
PDIVN
Mpll
Control
Signal
Upll
POWCNTL
F
H
P
USBCNTL
Test mode OM[1:0]
Bus
Controller
Memory
Controller
Arbitration
DMA 4ch
WDT
I
2
S
SDI
ADC
UART(0,1,2)
PWM
I
2
C
GPIO
RTC
SPI(0,1)
USB
Device
ARM920T
Interrupt
Controller
LCD
Controller
H_LCD
P_SDI
P_GPIO
P_ADC
P_RTC
P_UART
P_SPI
P_I
2
S
P_I
2
C
P_PWM
P_USB
H_Nand
FCLK
PCLK
HCLK
UCLK
Power
Management
Block
MPLLin CLK
UPLL CLK
HCLK
PCLK
RTC XTAL CLK
CLKOUT
XTIpll
XTOpll
EXTCLK
P[5:0]
M[7:0]
S[1:0]
OM[3:2]
P[5:0]
M[7:0]
S[1:0]
USB Host I/F
H_USB
TIC
H_CAM
CAM
ExtMater
DIVN_UPLL
1/1 or 1/2
CAMDIVN
P_A97
AC97
MPLLin
Figure 7-1. Clock Generator Block Diagram
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