LPC2939 NXP Semiconductors, LPC2939 Datasheet - Page 21

• Manufacturer Part Number: LPC2939
• Description: The LPC2939 combine an ARM968E-S CPU core with two integrated TCM blocksoperating at frequencies of up to 125 MHz, Full-speed USB 2
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC2939_3
Product data sheet
Table 7.
[1]
[2]
[3]
[4]
Table 8.
Base clock
BASE_MSCSS_CLK
BASE_UART_CLK
BASE_ICLK0_CLK
BASE_SPI_CLK
BASE_TMR_CLK
BASE_ADC_CLK
-
BASE_ICLK1_CLK
Base clock
BASE_OUT_CLK
BASE_USB_CLK
BASE_USB_I2C_CLK
This clock is always on (cannot be switched off for system safety reasons).
In the peripheral subsystem parts of the Timers, watchdog timer, SPI and UART have their own clock
source. See
In the Power Clock and Reset Control subsystem parts of the CGU, RGU, and PMU have their own clock
source. See
The clock should remain activated when system wake-up on timer or UART is required.
CGU0 base clock and branch clock overview
CGU1 base clock and branch clock overview
Section 6.13
Section 6.16
All information provided in this document is subject to legal disclaimers.
Branch clock name
CLK_MSCSS_APB
CLK_MSCSS_MTMR0
CLK_MSCSS_MTMR1
CLK_MSCSS_PWM0
CLK_MSCSS_PWM1
CLK_MSCSS_PWM2
CLK_MSCSS_PWM3
CLK_MSCSS_ADC0_APB APB side of ADC 0
CLK_MSCSS_ADC1_APB APB side of ADC 1
CLK_MSCSS_ADC2_APB APB side of ADC 2
CLK_MSCSS_QEI
CLK_UART1
-
CLK_SPI0
CLK_SPI1
CLK_SPI2
CLK_TMR0
CLK_TMR1
CLK_TMR2
CLK_TMR3
CLK_ADC0
CLK_ADC1
CLK_ADC2
reserved
-
CLK_UART0
Rev. 03 — 7 April 2010
for details.
for details.
Branch clock name
CLK_OUT_CLK
CLK_USB_CLK
CLK_USB_I2C_CLK
ARM9 microcontroller with CAN, LIN, and USB
Parts of the device clocked by this
branch clock
APB side of the MSCSS
timer 0 in the MSCSS
timer 1 in the MSCSS
PWM 0
PWM 1
PWM 2
PWM 3
Quadrature Encoder Interface (QEI)
UART 0 interface clock
UART 1 interface clock
CGU1 input clock
SPI 0 interface clock
SPI 1 interface clock
SPI 2 interface clock
timer 0 clock for counter part
timer 1 clock for counter part
timer 2 clock for counter part
timer 3 clock for counter part
control of ADC 0, capture sample
result
control of ADC 1, capture sample
result
control of ADC 2, capture sample
result
-
CGU1 input clock
Parts of the device clocked by this
branch clock
pin CLK_OUT
USB clock
USB OTG I
…continued
2
C clock
LPC2939
© NXP B.V. 2010. All rights reserved.
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