lpc2939fbd208 NXP Semiconductors, lpc2939fbd208 Datasheet - Page 19

• Manufacturer Part Number: lpc2939fbd208
• Description: Arm9 Microcontroller With Can, Lin, And Usb
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC2939_1
Preliminary data sheet
Fig 4.
AHB MULTILAYER MATRIX
AHB TO APB BRIDGES
peripheral subsystem
SYSTEM CONTROL
FLASH/SRAM/SMC
USB REGISTERS
LPC2939 overview of clock areas
GPIO0/1/2/3/4/5
EVENT ROUTER
general subsytem
TIMER 0/1/2/3
UART0/1
SPI0/1/2
GPDMA
WDT
CFID
CPU
VIC
6.7.2 Base clock and branch clock relationship
Two of the base clocks generated by the CGU0 are used as input into a second, dedicated
CGU (CGU1). The CGU1 uses its own PLL and fractional dividers to generate two base
clocks for the USB controller and one base clock for an independent clock output.
Table 7
branch clocks. A short description is given of the hardware parts that are clocked with the
individual branch clocks. In relevant cases more detailed information can be found in the
contains an overview of all the base blocks in the LPC2939 and their derived
BASE_SYS_CLK
CGU0
branch
clocks
Rev. 01 — 11 June 2009
BA SE_ICLK0_CLK
BASE_ICLK1_CLK
BASE_IVNSS_CLK
BASE_MSCSS_CLK
BASE_PCR_CLK
ARM9 microcontroller with CAN, LIN, and USB
branch
branch
clocks
clock
branch
branch
clocks
clocks
modulation and sampling
networking subsystem
BASE_USB_I2C_CLK
CGU1
power control subsystem
control subsystem
BASE_USB_CLK
TIMER0/1 MTMR
BASE_OUT_CLK
ACCEPTANCE
RESET/CLOCK
MANAGEMENT
GENERATION
PWM0/1/2/3
GLOBAL
ADC0/1/2
CAN0/1
FILTER
LIN0/1
I2C0/1
POWER
QEI
branch
branch
branch
clock
clock
clock
LPC2939
© NXP B.V. 2009. All rights reserved.
002aae270
CLOCK
OUT
USB
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