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LPC2921 Datasheet(PDF) 50 Page - NXP Semiconductors

Part # LPC2921
Description  ARM9 microcontroller with CAN, LIN, and USB
PDF  83 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

LPC2921 Datasheet(HTML) 50 Page - NXP Semiconductors

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LPC2921_23_25_1
© NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 01 — 15 June 2009
50 of 83
NXP Semiconductors
LPC2921/2923/2925
ARM9 microcontroller with CAN, LIN, and USB
CLK_SYS_RAM0
BASE_SYS_CLK
+
+
+
CLK_SYS_RAM1
BASE_SYS_CLK
+
+
+
CLK_SYS_GESS
BASE_SYS_CLK
+
+
+
CLK_SYS_VIC
BASE_SYS_CLK
+
+
+
CLK_SYS_PESS
BASE_SYS_CLK
+
+
+
CLK_SYS_GPIO0
BASE_SYS_CLK
+
+
+
CLK_SYS_GPIO1
BASE_SYS_CLK
+
+
+
CLK_SYS_GPIO5
BASE_SYS_CLK
+
+
+
CLK_SYS_IVNSS_A
BASE_SYS_CLK
+
+
+
CLK_SYS_MSCSS_A
BASE_SYS_CLK
+
+
+
CLK_SYS_DMA
BASE_SYS_CLK
+
+
+
CLK_SYS_USB
BASE_SYS_CLK
+
+
+
CLK_PCR_SLOW
BASE_PCR_CLK
+
+
1
CLK_IVNSS_APB
BASE_IVNSS_CLK
+
+
+
CLK_IVNSS_CANC0
BASE_IVNSS_CLK
+
+
+
CLK_IVNSS_CANC1
BASE_IVNSS_CLK
+
+
+
CLK_IVNSS_I2C0
BASE_IVNSS_CLK
+
+
+
CLK_IVNSS_I2C1
BASE_IVNSS_CLK
+
+
+
CLK_IVNSS_LIN0
BASE_IVNSS_CLK
+
+
+
CLK_IVNSS_LIN1
BASE_IVNSS_CLK
+
+
+
CLK_MSCSS_APB
BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_MTMR0
BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_MTMR1
BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_PWM0
BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_PWM1
BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_PWM2
BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_PWM3
BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_ADC1_APB BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_ADC2_APB BASE_MSCSS_CLK
+
+
+
CLK_MSCSS_QEI
BASE_MSCSS_CLK
+
+
+
CLK_OUT_CLK
BASE_OUT_CLK
+
+
+
CLK_UART0
BASE_UART_CLK
+
+
+
CLK_UART1
BASE_UART_CLK
+
+
+
CLK_SPI0
BASE_SPI_CLK
+
+
+
CLK_SPI1
BASE_SPI_CLK
+
+
+
CLK_SPI2
BASE_SPI_CLK
+
+
+
Table 29.
Branch clock overview …continued
Legend:
‘1’ Indicates that the related register bit is tied off to logic HIGH, all writes are ignored
‘0’ Indicates that the related register bit is tied off to logic LOW, all writes are ignored
‘+’ Indicates that the related register bit is readable and writable
Branch clock name
Base clock
Implemented switch on/off
mechanism
WAKE-UP
AUTO
RUN



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