LPC2131/32/34/36/38
NXP Semiconductors
Single-chip 16/32-bit microcontrollers
4. Block diagram
(3)
(3)
TMS
(3)
TDI
(3)
trace
signals
XTAL2
(3)
XTAL1
RESET
TRST
TCK
TDO
LPC2131, LPC2131/01
LPC2132, LPC2132/01
LPC2134, LPC2134/01
LPC2136, LPC2136/01
LPC2138, LPC2138/01
TEST/DEBUG
INTERFACE
SYSTEM
FUNCTIONS
PLL
ARM7TDMI-S
system
clock
VECTORED
INTERRUPT
CONTROLLER
P0[31:0]
FAST GENERAL
PURPOSE I/O
AHB BRIDGE
P1[31:16]
AMBA AHB
(Advanced High-performance Bus)
ARM7 local bus
INTERNAL
SRAM
INTERNAL
FLASH
CONTROLLER
CONTROLLER
AHB
DECODER
32/64/128/
256/512 kB
FLASH
8/16/32 kB
SRAM
AHB TO APB
BRIDGE
APB
DIVIDER
APB (ARM
peripheral bus)
SCL0,1
SDA0,1
2
EXTERNAL
INTERRUPTS
I C SERIAL
EINT[3:0]
INTERFACES 0 AND 1
8 × CAP
CAPTURE/
COMPARE
TIMER 0/TIMER 1
SCK0,1
MOSI0,1
MISO0,1
SSEL0,1
SPI AND SSP
SERIAL INTERFACES
8 × MAT
AD0[7:0]
A/D CONVERTERS
TXD0,1
RXD0,1
(1)
0 AND 1
(1)
AD1[7:0]
UART0/UART1
(1)
(1)
(1)
DSR1 ,CTS1
(1)
RTS1 , DTR1
(2)
(2)
(1)
(1)
AOUT
D/A CONVERTER
DCD1 , RI1
RTCX1
RTCX2
VBAT
REAL TIME CLOCK
P0[31:0]
GENERAL
PURPOSE I/O
P1[31:16]
WATCHDOG
TIMER
PWM[6:1]
PWM0
SYSTEM
CONTROL
002aab067
(1) LPC2134/36/38 only.
(2) LPC2132/34/36/38 only.
(3) Pins shared with GPIO.
Fig 1. Block diagram
LPC2131_32_34_36_38
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© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5.1 — 29 July 2011
4 of 45
NXP [ NXP ]
