NXP Semiconductors LPC2919 user manual Block description, Overview, DLPC2917/19

Base clock and branch clock overview …continued

NXP Semiconductors

DRAFT	D	D		AFT
	RAFT	RAFT AFT
			DR	DR

DLPC2917/19

ARM9 microcontrollerRAFT withDRAFTCANDRAFTand LINDRAFT

Table 7.

Base clock

BASE_MSCSS_CLK

Branch clock name

CLK_MSCSS_VPB

CLK_MSCSS_MTMR0

CLK_MSCSS_MTMR1

CLK_MSCSS_PWM0

CLK_MSCSS_PWM1

CLK_MSCSS_PWM2

CLK_MSCSS_PWM3

CLK_MSCSS_ADC1_V PB

T	DRAFT		T
DRA		DRA			DR
F			F
	DRAFT DRAF
Parts of the device clockedDRAFTby Remark			DRAFT
VPB side of the MSCSS	DRAFT
this branch clock
Timer 0 in the MSCSS		DRAFT			D
Timer 1 in the MSCSS				DRA
PWM 0

PWM 0

PWM 0

PWM 0

VPB side of ADC 1

BASE_UART_CLK

BASE_SPI_CLK

BASE_TMR_CLK

BASE_ADC_CLK

BASE_CLK_TESTSHELL

CLK_MSCSS_ADC2_V VPB side of ADC 2

PB

CLK_UART0	UART 0 interface clock
CLK_UART1	UART 1 interface clock
CLK_SPI0	SPI 0 interface clock
CLK_SPI1	SPI 1 interface clock
CLK_SPI2	SPI 2 interface clock
CLK_TMR0	Timer 0 clock for counter part
CLK_TMR1	Timer 1 clock for counter part
CLK_TMR2	Timer 2 clock for counter part
CLK_TMR3	Timer 3 clock for counter part
CLK_ADC1	Control of ADC 1, capture sample
	result
CLK_ADC2	Control of ADC 2, capture sample
	result
CLK_TESTSHELL_IP

[1]This clock is always on (cannot be switched off for system safety reasons)

[2]In the peripheral subsystem parts of the Timers, Watchdog Timer, SPI and UART have their own clock source. See Section 8.4 for details.

[3]In the Power Clock and Reset Control subsystem parts of the CGU, RGU PMU have their own clock source. See Section 8.8 for details.

[4]The clock should remain activated when system wake-up on timer or UART is required.

8.Block description

8.1Flash memory controller

8.1.1Overview

The Flash Memory Controller (FMC) interfaces to the embedded flash memory for two tasks:

•Providing memory data transfer

•Memory configuration via triggering, programming and erasing

LPC2917_19_1 © NXP B.V. 2007. All rights reserved.

Preliminary data sheet Rev. 1.01 — 15 November 2007 14 of 68