ARM IM-AD1 Instrukcja Użytkownika Pobierz pdf (Strona 3)

Product data sheet Rev. 5 — 12 August 2011 3 of 45

NXP Semiconductors

LPC2141/42/44/46/48

Single-chip 16-bit/32-bit microcontrollers

4. Block diagram

(1) Pins shared with GPIO.

(2) LPC2144/46/48 only.

(3) USB DMA controller with 8 kB of RAM accessible as general purpose RAM and/or DMA is available in LPC2146/48 only.

(4) LPC2142/44/46/48 only.

Fig 1. Block diagram

002aab560

system

clock

TRST

(1)

TMS

(1)

TCK

(1)

TDI

(1)

TDO

(1)

XTAL2

XTAL1

AMBA AHB

(Advanced High-performance Bus)

INTERNAL

FLASH

CONTROLLER

AHB BRIDGE

EMULATION TRACE

MODULE

TEST/DEBUG

INTERFACE

AHB

DECODER

AHB TO APB

BRIDGE

APB

DIVIDER

VECTORED

INTERRUPT

CONTROLLER

SYSTEM

FUNCTIONS

PLL0

USB

clock

PLL1

SYSTEM

CONTROL

32 kB/64 kB/128 kB/

256 kB/512 kB

FLASH

ARM7TDMI-S

LPC2141/42/44/46/48

INTERNAL

SRAM

CONTROLLER

8 kB/16 kB/

32 kB

SRAM

ARM7 local bus

SCL0, SCL1

SDA0, SDA1

4 × CAP0

4 × CAP1

8 × MAT0

8 × MAT1

C-BUS SERIAL

INTERFACES 0 AND 1

CAPTURE/COMPARE

(W/EXTERNAL CLOCK)

TIMER 0/TIMER 1

EINT3 to EINT0

EXTERNAL

INTERRUPTS

D+

D−

UP_LED

CONNECT

VBUS

USB 2.0 FULL-SPEED

DEVICE CONTROLLER

WITH DMA

(3)

SCK0, SCK1

MOSI0, MOSI1

MISO0, MISO1

AD0[7:6] and

AD0[4:1]

AD1[7:0]

(2)

SSEL0, SSEL1

SPI AND SSP

SERIAL INTERFACES

A/D CONVERTERS

0 AND 1

(2)

TXD0, TXD1

RXD0, RXD1

DSR1

(2)

,CTS1

(2)

RTS1

(2)

, DTR1

(2)

DCD1

(2)

,RI1

(2)

AOUT

(4)

UART0/UART1

D/A CONVERTER

P0[31:28] and

P0[25:0]

P1[31:16]

RTXC2

RTXC1

VBAT

REAL-TIME CLOCK

GENERAL

PURPOSE I/O

PWM6 to PWM0

WATCHDOG

TIMER

PWM0

P0[31:28] and

P0[25:0]

P1[31:16]

FAST GENERAL

PURPOSE I/O

8 kB RAM

SHARED WITH

USB DMA

(3)

RST

1 2 3 4 5 6 7 8 ... 44 45

LPC2141/42/44/46/48 1

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