PHILIPS LPC2138FBD64 Single-chip 16/32-bit microcontrollers; 32/64/512 kb isp/iap flash with 10-bit adc and dac Datasheet

LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB
ISP/IAP Flash with 10-bit ADC and DAC
Rev. 02 — 15 April 2005
Preliminary data sheet
1. General description
The LPC2131/2132/2134/2136/2138 microcontrollers are based on a 32/16 bit
ARM7TDMI-S CPU with real-time emulation and embedded trace support, that combines
the microcontroller with 32 kB, 64 kB, 128 kB, 256 kB and 512 kB of embedded high
speed Flash memory. A 128-bit wide memory interface and a unique accelerator
architecture enable 32-bit code execution at maximum clock rate. For critical code size
applications, the alternative 16-bit Thumb mode reduces code by more than 30 % with
minimal performance penalty.
Due to their tiny size and low power consumption, these microcontrollers are ideal for
applications where miniaturization is a key requirement, such as access control and
point-of-sale. With a wide range of serial communications interfaces and on-chip SRAM
options of 8/16/32 kB, they are very well suited for communication gateways and protocol
converters, soft modems, voice recognition and low end imaging, providing both large
buffer size and high processing power. Various 32-bit timers, single or dual 10-bit
8 channel ADC(s), 10-bit DAC, PWM channels and 47 GPIO lines with up to nine edge or
level sensitive external interrupt pins make these microcontrollers particularly suitable for
industrial control and medical systems.
2. Features
2.1 Key features
■ 16/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package.
■ 8/16/32 kB of on-chip static RAM and 32/64/128/256/512 kB of on-chip Flash program
memory. 128 bit wide interface/accelerator enables high speed 60 MHz operation.
■ In-System/In-Application Programming (ISP/IAP) via on-chip boot-loader software.
Single Flash sector or full chip erase in 400 ms and programming of 256 bytes in 1 ms.
■ EmbeddedICE RT and Embedded Trace interfaces offer real-time debugging with the
on-chip RealMonitor software and high speed tracing of instruction execution.
■ One (LPC2131/32) or two (LPC2134/36/38) 8 channel 10-bit A/D converters provides
a total of up to 16 analog inputs, with conversion times as low as 2.44 µs per channel.
■ Single 10-bit D/A converter provides variable analog output (LPC2132/34/36/38).
■ Two 32-bit timers/external event counters (with four capture and four compare
channels each), PWM unit (six outputs) and watchdog.
■ Low power Real-time clock with independent power and dedicated 32 kHz clock input.
■ Multiple serial interfaces including two UARTs (16C550), two Fast I2C-bus (400 kbit/s),
SPI and SSP with buffering and variable data length capabilities.
■ Vectored interrupt controller with configurable priorities and vector addresses.
LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
■ Up to 47 5 V tolerant general purpose I/O pins in tiny LQFP64 package.
■ Up to nine edge or level sensitive external interrupt pins available.
■ 60 MHz maximum CPU clock available from programmable on-chip PLL with settling
time of 100 µs.
■ On-chip integrated oscillator operates with external crystal in range of 1 MHz to
30 MHz and with external oscillator up to 50 MHz.
■ Power saving modes include Idle and Power-down.
■ Individual enable/disable of peripheral functions as well as peripheral clock scaling
down for additional power optimization.
■ Processor wake-up from Power-down mode via external interrupt or BOD.
■ Single power supply chip with POR and BOD circuits:
◆ CPU operating voltage range of 3.0 V to 3.6 V (3.3 V ± 10 %) with 5 V tolerant I/O
pads.
3. Ordering information
Table 1:
Ordering information
Type number
Package
Name
Description
Version
LPC2131FBD64
LQFP64
plastic low profile quad flat package; 64 leads;
body 10 × 10 × 1.4 mm
SOT314-2
LPC2132FBD64
LQFP64
plastic low profile quad flat package; 64 leads;
body 10 × 10 × 1.4 mm
SOT314-2
LPC2134FBD64
LQFP64
plastic low profile quad flat package; 64 leads;
body 10 × 10 × 1.4 mm
SOT314-2
LPC2136FBD64
LQFP64
plastic low profile quad flat package; 64 leads;
body 10 × 10 × 1.4 mm
SOT314-2
LPC2138FBD64
LQFP64
plastic low profile quad flat package; 64 leads;
body 10 × 10 × 1.4 mm
SOT314-2
3.1 Ordering options
Table 2:
Ordering options
Type number
Flash memory RAM
ADC
DAC
Temperature
range (°C)
LPC2131FBD64
32 kB
8 kB
1
-
−40 to +85
LPC2132FBD64
64 kB
16 kB
1
1
−40 to +85
LPC2134FBD64
128 kB
16 kB
2
1
−40 to +85
LPC2136FBD64
256 kB
32 kB
2
1
−40 to +85
LPC2138FBD64
512 kB
32 kB
2
1
−40 to +85
9397 750 14868
Preliminary data sheet
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Rev. 02 — 15 April 2005
2 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
4. Block diagram
TMS(3)
TDI(3)
TRST(3)
TCK(3)
TDO(3)
EMULATION TRACE
MODULE
LPC2131/2132/2134/2136/2138
XTAL2
RST
XTAL1
TEST/DEBUG
INTERFACE
ARM7TDMI-S
AHB BRIDGE
PLL
system
clock
SYSTEM
FUNCTIONS
VECTORED
INTERRUPT
CONTROLLER
ARM7 local bus
AMBA AHB
(Advanced High-performance Bus)
INTERNAL
SRAM
CONTROLLER
INTERNAL
FLASH
CONTROLLER
8/16/32 kB
SRAM
32/64/128/
256/512 kB
FLASH
AHB
DECODER
AHB TO VPB
BRIDGE
VPB
DIVIDER
VPB (VLSI
peripheral bus)
EINT3:0
8 × CAP0
8 × MAT
EXTERNAL
INTERRUPTS
I2C SERIAL
INTERFACES 0 AND 1
CAPTURE/
COMPARE
TIMER 0/TIMER 1
SPI AND SSP
SERIAL INTERFACES
SCL0,1
SDA0,1
SCK0,1
MOSI0,1
MISO0,1
SSEL0,1
AD0.7:0
AD1.7:0(1)
AOUT(2)
P0.31:0
P1.31:16
A/D CONVERTERS
0 AND 1(1)
TXD0,1
RXD0,1
UART0/UART1
DSR1(1),CTS1(1),
RTS1(1), DTR1(1)
DCD1(1),RI1(1)
D/A CONVERTER(2)
RTXC1
RTXC2
REAL TIME CLOCK
GENERAL
PURPOSE I/O
VBAT
WATCHDOG
TIMER
PWM6:1
PWM0
SYSTEM
CONTROL
002aab067
(1) LPC2134/2136/2138 only.
(2) LPC2132/2134/2136/2138 only.
(3) Pins shared with GPIO.
Fig 1. Block diagram.
9397 750 14868
Preliminary data sheet
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Rev. 02 — 15 April 2005
3 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
5. Pinning information
49 VBAT
50 VSS
51 VDD
52 P1.30/TMS
53 P0.18/CAP1.3/MISO1/MAT1.3
54 P0.19/MAT1.2/MOSI1/CAP1.2
55 P0.20/MAT1.3/SSEL1/EINT3
56 P1.29/TCK
57 RESET
58 P0.23
59 VSSA
60 P1.28/TDI
61 XTAL2
62 XTAL1
63 VREF
64 P1.27/TDO
5.1 Pinning
P0.21/PWM5/CAP1.3
1
48 P1.20/TRACESYNC
P0.22/CAP0.0/MAT0.0
2
47 P0.17/CAP1.2/SCK1/MAT1.2
RTXC1
3
46 P0.16/EINT0/MAT0.2/CAP0.2
P1.19/TRACEPKT3
4
45 P0.15/EINT2
RTXC2
5
44 P1.21/PIPESTAT0
VSS
6
43 VDD
VDDA
7
42 VSS
P1.18/TRACEPKT2
8
P0.25/AD0.4
9
41 P0.14/EINT1/SDA1
LPC2131
40 P1.22/PIPESTAT1
P0.26/AD0.5 10
39 P0.13/MAT1.1
P0.27/AD0.0/CAP0.1/MAT0.1 11
38 P0.12/MAT1.0
P1.17/TRACEPKT1 12
37 P0.11/CAP1.1/SCL1
P0.28/AD0.1/CAP0.2/MAT0.2 13
36 P1.23/PIPESTAT2
P0.29/AD0.2/CAP0.3/MAT0.3 14
35 P0.10/CAP1.0
P0.30/AD0.3/EINT3/CAP0.0 15
34 P0.9/RXD1/PWM6/EINT3
P1.16/TRACEPKT0 16
P1.24/TRACECLK 32
P0.7/SSEL0/PWM2/EINT2 31
P0.6/MOSI0/CAP0.2 30
P0.5/MISO0/MAT0.1/AD0.7 29
P1.25/EXTIN0 28
P0.4/SCK0/CAP0.1/AD0.6 27
P0.3/SDA0/MAT0.0/EINT1 26
VSS 25
P1.26/RTCK 24
VDD 23
P0.2/SCL0/CAP0.0 22
P0.1/RXD0/PWM3/EINT0 21
P1.31/TRST 20
P0.0/TXD0/PWM1 19
VSS 18
P0.31 17
33 P0.8/TXD1/PWM4
002aab068
Fig 2. LPC2131 pinning.
9397 750 14868
Preliminary data sheet
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Rev. 02 — 15 April 2005
4 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
49 VBAT
50 VSS
51 VDD
52 P1.30/TMS
53 P0.18/CAP1.3/MISO1/MAT1.3
54 P0.19/MAT1.2/MOSI1/CAP1.2
55 P0.20/MAT1.3/SSEL1/EINT3
56 P1.29/TCK
57 RESET
58 P0.23
59 VSSA
60 P1.28/TDI
61 XTAL2
62 XTAL1
63 VREF
64 P1.27/TDO
Single-chip 16/32-bit microcontrollers
P0.21/PWM5/CAP1.3
1
48 P1.20/TRACESYNC
P0.22/CAP0.0/MAT0.0
2
47 P0.17/CAP1.2/SCK1/MAT1.2
RTXC1
3
46 P0.16/EINT0/MAT0.2/CAP0.2
P1.19/TRACEPKT3
4
45 P0.15/EINT2
RTXC2
5
44 P1.21/PIPESTAT0
VSS
6
43 VDD
VDDA
7
42 VSS
P1.18/TRACEPKT2
8
P0.25/AD0.4/AOUT
9
41 P0.14/EINT1/SDA1
LPC2132
40 P1.22/PIPESTAT1
P0.26/AD0.5 10
39 P0.13/MAT1.1
P0.27/AD0.0/CAP0.1/MAT0.1 11
38 P0.12/MAT1.0
P1.17/TRACEPKT1 12
37 P0.11/CAP1.1/SCL1
P0.28/AD0.1/CAP0.2/MAT0.2 13
36 P1.23/PIPESTAT2
P0.29/AD0.2/CAP0.3/MAT0.3 14
35 P0.10/CAP1.0
P0.30/AD0.3/EINT3/CAP0.0 15
34 P0.9/RXD1/PWM6/EINT3
P1.16/TRACEPKT0 16
P1.24/TRACECLK 32
P0.7/SSEL0/PWM2/EINT2 31
P0.6/MOSI0/CAP0.2 30
P0.5/MISO0/MAT0.1/AD0.7 29
P1.25/EXTIN0 28
P0.4/SCK0/CAP0.1/AD0.6 27
P0.3/SDA0/MAT0.0/EINT1 26
VSS 25
P1.26/RTCK 24
VDD 23
P0.2/SCL0/CAP0.0 22
P0.1/RXD0/PWM3/EINT0 21
P1.31/TRST 20
P0.0/TXD0/PWM1 19
VSS 18
P0.31 17
33 P0.8/TXD1/PWM4
002aab406
Fig 3. LPC2132 pinning.
9397 750 14868
Preliminary data sheet
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Rev. 02 — 15 April 2005
5 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
49 VBAT
50 VSS
51 VDD
52 P1.30/TMS
53 P0.18/CAP1.3/MISO1/MAT1.3
54 P0.19/MAT1.2/MOSI1/CAP1.2
55 P0.20/MAT1.3/SSEL1/EINT3
56 P1.29/TCK
57 RESET
58 P0.23
59 VSSA
60 P1.28/TDI
61 XTAL2
62 XTAL1
63 VREF
64 P1.27/TDO
Single-chip 16/32-bit microcontrollers
P0.21/PWM5/AD1.6/CAP1.3
1
48 P1.20/TRACESYNC
P0.22/AD1.7/CAP0.0/MAT0.0
2
47 P0.17/CAP1.2/SCK1/MAT1.2
RTXC1
3
46 P0.16/EINT0/MAT0.2/CAP0.2
P1.19/TRACEPKT3
4
45 P0.15/RI1/EINT2/AD1.5
RTXC2
5
44 P1.21/PIPESTAT0
VSS
6
43 VDD
VDDA
7
42 VSS
P1.18/TRACEPKT2
8
P0.25/AD0.4/AOUT
9
41 P0.14/DCD1/EINT1/SDA1
LPC2134/2136/2138
40 P1.22/PIPESTAT1
P0.26/AD0.5 10
39 P0.13/DTR1/MAT1.1/AD1.4
P0.27/AD0.0/CAP0.1/MAT0.1 11
38 P0.12/DSR1/MAT1.0/AD1.3
P1.17/TRACEPKT1 12
37 P0.11/CTS1/CAP1.1/SCL1
P0.28/AD0.1/CAP0.2/MAT0.2 13
36 P1.23/PIPESTAT2
P0.29/AD0.2/CAP0.3/MAT0.3 14
35 P0.10/RTS1/CAP1.0/AD1.2
P1.24/TRACECLK 32
P0.7/SSEL0/PWM2/EINT2 31
P0.6/MOSI0/CAP0.2/AD1.0 30
P0.5/MISO0/MAT0.1/AD0.7 29
P1.25/EXTIN0 28
P0.4/SCK0/CAP0.1/AD0.6 27
P0.3/SDA0/MAT0.0/EINT1 26
VSS 25
P1.26/RTCK 24
VDD 23
P0.2/SCL0/CAP0.0 22
P0.1/RXD0/PWM3/EINT0 21
P1.31/TRST 20
P0.0/TXD0/PWM1 19
33 P0.8/TXD1/PWM4/AD1.1
VSS 18
34 P0.9/RXD1/PWM6/EINT3
P1.16/TRACEPKT0 16
P0.31 17
P0.30/AD0.3/EINT3/CAP0.0 15
002aab407
Fig 4. LPC2134/2136/2138 pinning.
9397 750 14868
Preliminary data sheet
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Rev. 02 — 15 April 2005
6 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
5.2 Pin description
Table 3:
Pin description
Symbol
Pin
P0.0 to P0.31
Type
Description
I/O
Port 0: Port 0 is a 32-bit I/O port with individual direction controls for each bit.
Total of 31 pins of the Port 0 can be used as a general purpose bi-directional
digital I/Os while P0.31 is output only pin. The operation of port 0 pins
depends upon the pin function selected via the pin connect block.
Pin P0.24 is not available.
P0.0/TXD0/
PWM1
19 [1]
P0.1/RXD0/
PWM3/EINT0
21 [2]
P0.2/SCL0/
CAP0.0
22 [3]
P0.3/SDA0/
MAT0.0/EINT1
26 [3]
P0.4/SCK0/
CAP0.1/AD0.6
P0.5/MISO0/
MAT0.1/AD0.7
P0.6/MOSI0/
CAP0.2/AD1.0
27 [4]
29 [4]
30 [4]
P0.7/SSEL0/
PWM2/EINT2
31 [2]
P0.8/TXD1/
PWM4/AD1.1
33 [4]
P0.9/RXD1/
PWM6/EINT3
34 [2]
O
TXD0 — Transmitter output for UART0.
O
PWM1 — Pulse Width Modulator output 1.
I
RXD0 — Receiver input for UART0.
O
PWM3 — Pulse Width Modulator output 3.
I
EINT0 — External interrupt 0 input
I/O
SCL0 — I2C0 clock input/output. Open drain output (for I2C-bus compliance).
I
CAP0.0 — Capture input for Timer 0, channel 0.
I/O
SDA0 — I2C0 data input/output. Open drain output (for I2C-bus compliance).
O
MAT0.0 — Match output for Timer 0, channel 0.
I
EINT1 — External interrupt 1 input.
I/O
SCK0 — Serial clock for SPI0. SPI clock output from master or input to slave.
I
CAP0.1 — Capture input for Timer 0, channel 0.
I
AD0.6 — A/D converter 0, input 6. This analog input is always connected to
its pin.
I/O
MISO0 — Master In Slave OUT for SPI0. Data input to SPI master or data
output from SPI slave.
O
MAT0.1 — Match output for Timer 0, channel 1.
I
AD0.7 — A/D converter 0, input 7. This analog input is always connected to
its pin.
I/O
MOSI0 — Master Out Slave In for SPI0. Data output from SPI master or data
input to SPI slave.
I
CAP0.2 — Capture input for Timer 0, channel 2.
I
AD1.0 — A/D converter 1, input 0. This analog input is always connected to
its pin. Available in LPC2138 only.
I
SSEL0 — Slave Select for SPI0. Selects the SPI interface as a slave.
O
PWM2 — Pulse Width Modulator output 2.
I
EINT2 — External interrupt 2 input.
O
TXD1 — Transmitter output for UART1.
O
PWM4 — Pulse Width Modulator output 4.
I
AD1.1 — A/D converter 1, input 1. This analog input is always connected to
its pin. Available in LPC2138 only.
I
RXD1 — Receiver input for UART1.
O
PWM6 — Pulse Width Modulator output 6.
I
EINT3 — External interrupt 3 input.
9397 750 14868
Preliminary data sheet
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Rev. 02 — 15 April 2005
7 of 41
Philips Semiconductors
LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers
Table 3:
Pin description …continued
Symbol
Pin
Type
Description
P0.10/RTS1/
CAP1.0/AD1.2
35 [4]
O
RTS1 — Request to Send output for UART1. Available in LPC2138 only.
I
CAP1.0 — Capture input for Timer 1, channel 0.
I
AD1.2 — A/D converter 1, input 2. This analog input is always connected to
its pin. Available in LPC2138 only.
I
CTS1 — Clear to Send input for UART1. Available in LPC2138 only.
I
CAP1.1 — Capture input for Timer 1, channel 1.
I/O
SCL1 — I2C1 clock input/output. Open drain output (for I2C-bus compliance)
P0.11/CTS1/
CAP1.1/SCL1
P0.12/DSR1/
MAT1.0/AD1.3
P0.13/DTR1/
MAT1.1/AD1.4
P0.14/DCD1/
EINT1/SDA1
P0.15/RI1/
EINT2/AD1.5
37 [3]
38 [4]
39 [4]
41 [3]
45 [4]
P0.16/EINT0/
46 [2]
MAT0.2/CAP0.2
P0.17/CAP1.2/
SCK1/MAT1.2
47 [1]
P0.18/CAP1.3/
MISO1/MAT1.3
53 [1]
P0.19/MAT1.2/
MOSI1/CAP1.2
54 [1]
P0.20/MAT1.3/
SSEL1/EINT3
55 [2]
P0.21/PWM5/
AD1.6/CAP1.3
1 [4]
I
DSR1 — Data Set Ready input for UART1. Available in LPC2138 only.
O
MAT1.0 — Match output for Timer 1, channel 0.
I
AD1.3 — A/D converter input 3. This analog input is always connected to its
pin. Available in LPC2138 only.
O
DTR1 — Data Terminal Ready output for UART1. Available in LPC2138 only.
O
MAT1.1 — Match output for Timer 1, channel 1.
I
AD1.4 — A/D converter input 4. This analog input is always connected to its
pin. Available in LPC2138 only.
I
DCD1 — Data Carrier Detect input for UART1. Available in LPC2138 only.
I
EINT1 — External interrupt 1 input.
I/O
SDA1 — I2C1 data input/output. Open drain output (for I2C-bus compliance)
I
RI1 — Ring Indicator input for UART1. Available in LPC2138 only.
I
EINT2 — External interrupt 2 input.
I
AD1.5 — A/D converter 1, input 5. This analog input is always connected to
its pin. Available in LPC2138 only.
I
EINT0 — External interrupt 0 input.
O
MAT0.2 — Match output for Timer 0, channel 2.
I
CAP0.2 — Capture input for Timer 0, channel 2.
I
CAP1.2 — Capture input for Timer 1, channel 2.
I/O
SCK1 — Serial Clock for SSP. Clock output from master or input to slave.
O
MAT1.2 — Match output for Timer 1, channel 2.
I
CAP1.3 — Capture input for Timer 1, channel 3.
I/O
MISO1 — Master In Slave Out for SSP. Data input to SPI master or data
output from SSP slave.
O
MAT1.3 — Match output for Timer 1, channel 3.
O
MAT1.2 — Match output for Timer 1, channel 2.
I/O
MOSI1 — Master Out Slave In for SSP. Data output from SSP master or data
input to SSP slave.
I
CAP1.2 — Capture input for Timer 1, channel 2.
O
MAT1.3 — Match output for Timer 1, channel 3.
I
SSEL1 — Slave Select for SSP. Selects the SSP interface as a slave.
I
EINT3 — External interrupt 3 input.
O
PWM5 — Pulse Width Modulator output 5.
I
AD1.6 — A/D converter 1, input 6. This analog input is always connected to
its pin. Available in LPC2138 only.
I
CAP1.3 — Capture input for Timer 1, channel 3.
9397 750 14868
Preliminary data sheet
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Rev. 02 — 15 April 2005
8 of 41
Philips Semiconductors
LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers
Table 3:
Pin description …continued
Symbol
Pin
P0.22/AD1.7/
2 [4]
CAP0.0/MAT0.0
Type
Description
I
AD1.7 — A/D converter 1, input 7. This analog input is always connected to
its pin. Available in LPC2138 only.
I
CAP0.0 — Capture input for Timer 0, channel 0.
O
MAT0.0 — Match output for Timer 0, channel 0.
P0.23
58 [1]
I/O
General purpose digital input/output pin.
P0.25/AD0.4/
AOUT
9 [5]
I
AD0.4 — A/D converter 0, input 4. This analog input is always connected to
its pin.
O
AOUT — D/A converter output. Available in LPC2132 and LPC2138 only.
P0.26/AD0.5
10 [4]
I
AD0.5 — A/D converter 0, input 5. This analog input is always connected to
its pin.
P0.27/AD0.0/
11 [4]
CAP0.1/MAT0.1
I
AD0.0 — A/D converter 0, input 0. This analog input is always connected to
its pin.
I
CAP0.1 — Capture input for Timer 0, channel 1.
O
MAT0.1 — Match output for Timer 0, channel 1.
I
AD0.1 — A/D converter 0, input 1. This analog input is always connected to
its pin.
I
CAP0.2 — Capture input for Timer 0, channel 2.
O
MAT0.2 — Match output for Timer 0, channel 2.
I
AD0.2 — A/D converter 0, input 2. This analog input is always connected to
its pin.
I
CAP0.3 — Capture input for Timer 0, Channel 3.
O
MAT0.3 — Match output for Timer 0, channel 3.
I
AD0.3 — A/D converter 0, input 3. This analog input is always connected to
its pin.
I
EINT3 — External interrupt 3 input.
I
CAP0.0 — Capture input for Timer 0, channel 0.
O
General purpose digital output only pin.
P0.28/AD0.1/
CAP0.2/MAT0.2
P0.29/AD0.2/
CAP0.3/MAT0.3
P0.30/AD0.3/
EINT3/CAP0.0
P0.31
13 [4]
14 [4]
15 [4]
17 [6]
Important: This pin MUST NOT be externally pulled LOW when RESET pin
is LOW or the JTAG port will be disabled.
P1.0 to P1.31
I/O
Port 1: Port 1 is a 32-bit bi-directional I/O port with individual direction
controls for each bit. The operation of port 1 pins depends upon the pin
function selected via the pin connect block. Pins 0 through 15 of port 1 are not
available.
P1.16/
TRACEPKT0
16 [6]
O
TRACEPKT0 — Trace Packet, bit 0. Standard I/O port with internal pull-up.
P1.17/
TRACEPKT1
12 [6]
O
TRACEPKT1 — Trace Packet, bit 1. Standard I/O port with internal pull-up.
P1.18/
TRACEPKT2
8 [6]
O
TRACEPKT2 — Trace Packet, bit 2. Standard I/O port with internal pull-up.
P1.19/
TRACEPKT3
4 [6]
O
TRACEPKT3 — Trace Packet, bit 3. Standard I/O port with internal pull-up.
P1.20/
TRACESYNC
48 [6]
O
TRACESYNC — Trace Synchronization. Standard I/O port with internal
pull-up. LOW on TRACESYNC while RESET is LOW enables pins P1.25:16
to operate as Trace port after reset.
P1.21/
PIPESTAT0
44 [6]
O
PIPESTAT0 — Pipeline Status, bit 0. Standard I/O port with internal pull-up.
9397 750 14868
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Philips Semiconductors
LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers
Table 3:
Pin description …continued
Symbol
Pin
Type
Description
P1.22/
PIPESTAT1
40 [6]
O
PIPESTAT1 — Pipeline Status, bit 1. Standard I/O port with internal pull-up.
P1.23/
PIPESTAT2
36 [6]
O
PIPESTAT2 — Pipeline Status, bit 2. Standard I/O port with internal pull-up.
P1.24/
TRACECLK
32 [6]
O
TRACECLK — Trace Clock. Standard I/O port with internal pull-up.
P1.25/EXTIN0
28 [6]
I
EXTIN0 — External Trigger Input. Standard I/O with internal pull-up.
P1.26/RTCK
24 [6]
I/O
RTCK — Returned Test Clock output. Extra signal added to the JTAG port.
Assists debugger synchronization when processor frequency varies.
Bi-directional pin with internal pull-up. LOW on RTCK while RESET is LOW
enables pins P1.31:26 to operate as Debug port after reset.
P1.27/TDO
64 [6]
O
TDO — Test Data out for JTAG interface.
P1.28/TDI
60 [6]
I
TDI — Test Data in for JTAG interface.
P1.29/TCK
56 [6]
I
TCK — Test Clock for JTAG interface.
P1.30/TMS
52 [6]
I
TMS — Test Mode Select for JTAG interface.
P1.31/TRST
20 [6]
I
TRST — Test Reset for JTAG interface.
RESET
57 [7]
I
External reset input: A LOW on this pin resets the device, causing I/O ports
and peripherals to take on their default states, and processor execution to
begin at address 0. TTL with hysteresis, 5 V tolerant.
XTAL1
62 [8]
I
Input to the oscillator circuit and internal clock generator circuits.
XTAL2
61 [8]
O
Output from the oscillator amplifier.
RTXC1
3 [8]
I
Input to the RTC oscillator circuit.
RTXC2
5 [8]
O
Output from the RTC oscillator circuit.
VSS
6, 18, 25, 42, I
50
Ground: 0 V reference.
VSSA
59
I
Analog ground: 0 V reference. This should nominally be the same voltage
as VSS, but should be isolated to minimize noise and error.
VDD
23, 43, 51
I
3.3 V power supply: This is the power supply voltage for the core and I/O
ports.
VDDA
7
I
Analog 3.3 V power supply: This should be nominally the same voltage as
VDD but should be isolated to minimize noise and error. This voltage is used
to power the on-chip PLL.
VREF
63
I
A/D converter reference: This should be nominally the same voltage as VDD
but should be isolated to minimize noise and error. Level on this pin is used as
a reference for A/D and D/A convertor(s).
VBAT
49
I
RTC power supply: 3.3 V on this pin supplies the power to the RTC.
[1]
5 V tolerant pad providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control.
[2]
5 V tolerant pad providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control. If configured for an input
function, this pad utilizes built-in glitch filter that blocks pulses shorter than 3 ns.
[3]
Open drain 5 V tolerant digital I/O I2C-bus 400 kHz specification compatible pad. It requires external pull-up to provide an output
functionality.
[4]
5 V tolerant pad providing digital I/O (with TTL levels and hysteresis and 10 ns slew rate control) and analog input function. If configured
for an input function, this pad utilizes built-in glitch filter that blocks pulses shorter than 3 ns. When configured as an ADC input, digital
section of the pad is disabled.
[5]
5 V tolerant pad providing digital I/O (with TTL levels and hysteresis and 10 ns slew rate control) and analog output function. When
configured as the DAC output, digital section of the pad is disabled.
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10 of 41
Philips Semiconductors
LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers
[6]
5 V tolerant pad with built-in pull-up resistor providing digital I/O functions with TTL levels and hysteresis and 10 ns slew rate control.
The pull-up resistor’s value ranges from 60 kΩ to 300 kΩ.
[7]
5 V tolerant pad providing digital input (with TTL levels and hysteresis) function only.
[8]
Pad provides special analog functionality.
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Rev. 02 — 15 April 2005
11 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
6. Functional description
6.1 Architectural overview
The ARM7TDMI-S is a general purpose 32-bit microprocessor, which offers high
performance and very low power consumption. The ARM architecture is based on
Reduced Instruction Set Computer (RISC) principles, and the instruction set and related
decode mechanism are much simpler than those of microprogrammed Complex
Instruction Set Computers. This simplicity results in a high instruction throughput and
impressive real-time interrupt response from a small and cost-effective processor core.
Pipeline techniques are employed so that all parts of the processing and memory systems
can operate continuously. Typically, while one instruction is being executed, its successor
is being decoded, and a third instruction is being fetched from memory.
The ARM7TDMI-S processor also employs a unique architectural strategy known as
Thumb, which makes it ideally suited to high-volume applications with memory
restrictions, or applications where code density is an issue.
The key idea behind Thumb is that of a super-reduced instruction set. Essentially, the
ARM7TDMI-S processor has two instruction sets:
• The standard 32-bit ARM set.
• A 16-bit Thumb set.
The Thumb set’s 16-bit instruction length allows it to approach twice the density of
standard ARM code while retaining most of the ARM’s performance advantage over a
traditional 16-bit processor using 16-bit registers. This is possible because Thumb code
operates on the same 32-bit register set as ARM code.
Thumb code is able to provide up to 65 % of the code size of ARM, and 160 % of the
performance of an equivalent ARM processor connected to a 16-bit memory system.
6.2 On-Chip Flash program memory
The LPC2131/2132/2134/2136/2138 incorporate a 32 kB, 64 kB, 128 kB, 256 kB and
512 kB Flash memory system respectively. This memory may be used for both code and
data storage. Programming of the Flash memory may be accomplished in several ways. It
may be programmed In System via the serial port. The application program may also
erase and/or program the Flash while the application is running, allowing a great degree
of flexibility for data storage field firmware upgrades, etc. When the
LPC2131/2132/2134/2136/2138 on-chip bootloader is used, 32/64/128/256/500 kB of
Flash memory is available for user code.
The LPC2131/2132/2134/2136/2138 Flash memory provides a minimum of 100,000
erase/write cycles and 20 years of data-retention.
6.3 On-Chip static RAM
On-Chip static RAM may be used for code and/or data storage. The SRAM may be
accessed as 8-bits, 16-bits, and 32-bits. The LPC2131/2132/2134/2136/2138 provide
8/16/32 kB of static RAM.
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LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
6.4 Memory map
The LPC2131/2132/2134/2136/2138 memory map incorporates several distinct regions,
as shown in Figure 5.
In addition, the CPU interrupt vectors may be re-mapped to allow them to reside in either
Flash memory (the default) or on-chip static RAM. This is described in Section 6.21
“System control”.
4.0 GB
0xFFFF FFFF
AHB PERIPHERALS
0xF000 0000
3.75 GB
VPB PERIPHERALS
3.5 GB
0xE000 0000
3.0 GB
0xC000 0000
RESERVED ADDRESS SPACE
0x8000 0000
2.0 GB
BOOT BLOCK (RE-MAPPED FROM
ON-CHIP FLASH MEMORY
RESERVED ADDRESS SPACE
0x4001 8000
0x4000 7FFF
TOTAL OF 32 kB ON-CHIP STATIC RAM (LPC2136/38)
TOTAL OF 16 kB ON-CHIP STATIC RAM (LPC2132/34)
TOTAL OF 8 kB ON-CHIP STATIC RAM (LPC2131)
1.0 GB
0x4000 0000
RESERVED ADDRESS SPACE
TOTAL OF 512 kB ON-CHIP NON-VOLATILE MEMORY
(LPC2138)
TOTAL OF 256 kB ON-CHIP NON-VOLATILE MEMORY
(LPC2136)
TOTAL OF 128 kB ON-CHIP NON-VOLATILE MEMORY
(LPC2134)
TOTAL OF 64 kB ON-CHIP NON-VOLATILE MEMORY
(LPC2132)
0.0 GB
0x4000 4000
0x4000 3FFF
0x4000 2000
0x4000 1FFF
TOTAL OF 32 kB ON-CHIP NON-VOLATILE MEMORY
(LPC2131)
0x0008 0000
0x0007 FFFF
0x0004 0000
0x0003 FFFF
0x0002 0000
0x0001 FFFF
0x0001 0000
0x0000 FFFF
0x0000 8000
0x0000 7FFF
0x0000 0000
002aab069
Fig 5. LPC2131/2132/2134/2136/2138 memory map.
6.5 Interrupt controller
The VIC accepts all of the interrupt request inputs and categorizes them as FIQ, vectored
IRQ, and non-vectored IRQ as defined by programmable settings. The programmable
assignment scheme means that priorities of interrupts from the various peripherals can be
dynamically assigned and adjusted.
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Single-chip 16/32-bit microcontrollers
Fast Interrupt reQuest (FIQ) has the highest priority. If more than one request is assigned
to FIQ, the VIC combines the requests to produce the FIQ signal to the ARM processor.
The fastest possible FIQ latency is achieved when only one request is classified as FIQ,
because then the FIQ service routine can simply start dealing with that device. But if more
than one request is assigned to the FIQ class, the FIQ service routine can read a word
from the VIC that identifies which FIQ source(s) is (are) requesting an interrupt.
Vectored IRQs have the middle priority. Sixteen of the interrupt requests can be assigned
to this category. Any of the interrupt requests can be assigned to any of the 16 vectored
IRQ slots, among which slot 0 has the highest priority and slot 15 has the lowest.
Non-vectored IRQs have the lowest priority.
The VIC combines the requests from all the vectored and non-vectored IRQs to produce
the IRQ signal to the ARM processor. The IRQ service routine can start by reading a
register from the VIC and jumping there. If any of the vectored IRQs are requesting, the
VIC provides the address of the highest-priority requesting IRQs service routine,
otherwise it provides the address of a default routine that is shared by all the non-vectored
IRQs. The default routine can read another VIC register to see what IRQs are active.
6.5.1 Interrupt sources
Table 4 lists the interrupt sources for each peripheral function. Each peripheral device has
one interrupt line connected to the Vectored Interrupt Controller, but may have several
internal interrupt flags. Individual interrupt flags may also represent more than one
interrupt source.
Table 4:
Interrupt sources
Block
Flag(s)
VIC channel #
WDT
Watchdog Interrupt (WDINT)
0
-
Reserved for software interrupts only
1
ARM Core
Embedded ICE, DbgCommRX
2
ARM Core
Embedded ICE, DbgCommTX
3
TIMER0
Match 0 to 3 (MR0, MR1, MR2, MR3)
4
Capture 0 to 3 (CR0, CR1, CR2, CR3)
TIMER1
Match 0 to 3 (MR0, MR1, MR2, MR3)
5
Capture 0 to 3 (CR0, CR1, CR2, CR3)
UART0
RX Line Status (RLS)
6
Transmit Holding Register empty (THRE)
RX Data Available (RDA)
Character Time-out Indicator (CTI)
UART1
RX Line Status (RLS)
7
Transmit Holding Register empty (THRE)
RX Data Available (RDA)
Character Time-out Indicator (CTI)
Modem Status Interrupt (MSI) (Available in
LPC2134/2136/2138 only)
PWM0
Match 0 to 6 (MR0, MR1, MR2, MR3, MR4, MR5, MR6)
8
Capture 0 to 3 (CR0, CR1, CR2, CR3)
I2C0
SI (state change)
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LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
Table 4:
Interrupt sources …continued
Block
Flag(s)
VIC channel #
SPI0
SPIF, MODF
10
SSP
TX FIFO at least half empty (TXRIS)
11
RX FIFO at least half full (RXRIS)
Receive Timeout (RTRIS)
Receive Overrun (RORRIS)
PLL
PLL Lock (PLOCK)
12
RTC
RTCCIF (Counter Increment), RTCALF (Alarm)
13
System Control
External Interrupt 0 (EINT0)
14
External Interrupt 1 (EINT1)
15
External Interrupt 2 (EINT2)
16
External Interrupt 3 (EINT3)
17
AD0
A/D Converter 0
18
I2C1
SI (state change)
19
BOD
Brown Out Detect
20
AD1
A/D Converter 1 (Available in LPC2134/2136/2138 only)
21
6.6 Pin connect block
The pin connect block allows selected pins of the microcontroller to have more than one
function. Configuration registers control the multiplexers to allow connection between the
pin and the on chip peripherals. Peripherals should be connected to the appropriate pins
prior to being activated, and prior to any related interrupt(s) being enabled. Activity of any
enabled peripheral function that is not mapped to a related pin should be considered
undefined.
The Pin Control Module contains three registers as shown in Table 5.
Table 5:
Pin control module registers
Address
Name
Description
Access
0xE002C000
PINSEL0
Pin function select register 0
Read/Write
0xE002C004
PINSEL1
Pin function select register 1
Read/Write
0xE002C014
PINSEL2
Pin function select register 2
Read/Write
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LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
6.7 Pin function select register 0 (PINSEL0 - 0xE002C000)
The PINSEL0 register controls the functions of the pins as per the settings listed in
Table 6. The direction control bit in the IODIR register is effective only when the GPIO
function is selected for a pin. For other functions, direction is controlled automatically.
Settings other than those shown in Table 6 are reserved, and should not be used.
Table 6:
Pin function select register 0 (PINSEL0 - 0xE002C000)
PINSEL0
Pin name
1:0
P0.0
3:2
5:4
7:6
9:8
11:10
13:12
15:14
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
Value
Function
Value after
reset
0
0
0
GPIO Port 0.0
0
1
TXD (UART0)
1
0
PWM1
1
1
Reserved
0
0
GPIO Port 0.1
0
1
RXD (UART0)
1
0
PWM3
1
1
EINT0
0
0
GPIO Port 0.2
0
1
SCL0 (I2C0)
1
0
Capture 0.0 (Timer 0)
1
1
Reserved
0
0
GPIO Port 0.3
0
1
SDA0 (I2C0)
1
0
Match 0.0 (Timer 0)
1
1
EINT1
0
0
0
0
GPIO Port 0.4
0
1
SCK0 (SPI0)
1
0
Capture 0.1 (Timer 0)
1
1
AD0.6
0
0
GPIO Port 0.5
0
1
MISO0 (SPI0)
1
0
Match 0.1 (Timer 0)
1
1
AD0.7
0
0
0
0
GPIO Port 0.6
0
1
MOSI0 (SPI0)
1
0
Capture 0.2 (Timer 0)
1
1
Reserved (LPC2131/32)
AD1.0 (LPC2134/2136/2138)
0
0
GPIO Port 0.7
0
1
SSEL0 (SPI0)
1
0
PWM2
1
1
EINT2
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0
0
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Single-chip 16/32-bit microcontrollers
Table 6:
Pin function select register 0 (PINSEL0 - 0xE002C000) …continued
PINSEL0
Pin name
Value
17:16
P0.8
0
19:18
21:20
23:22
25:24
27:26
29:28
31:30
P0.9
P0.10
P0.11
P0.12
P0.13
P0.14
P0.15
Function
Value after
reset
0
GPIO Port 0.8
0
0
1
TXD UART1
1
0
PWM4
1
1
Reserved (LPC2131/32)
AD1.1 (LPC2134/36/38)
0
0
GPIO Port 0.9
0
1
RXD (UART1)
1
0
PWM6
1
1
EINT3
0
0
GPIO Port 0.10
0
1
Reserved (LPC2131/32)
RTS (UART1) (LPC2134/36/38)
1
0
Capture 1.0 (Timer 1)
1
1
Reserved (LPC2131/32)
AD1.2 (LPC2134/36/38)
0
0
GPIO Port 0.11
0
1
Reserved (LPC2131/32)
CTS (UART1) (LPC2134/36/38)
1
0
Capture 1.1 (Timer 1)
1
1
SCL1 (I2C1)
0
0
GPIO Port 0.12
0
1
Reserved (LPC2131/32)
DSR (UART1) (LPC2134/36/38)
1
0
Match 1.0 (Timer 1)
1
1
Reserved (LPC2131/32)
AD1.3 (LPC2134/36/38)
0
0
0
0
0
GPIO Port 0.13
0
1
Reserved (LPC2131/32)
DTR (UART1) (LPC2134/36/38)
1
0
Match 1.1 (Timer 1)
1
1
Reserved (LPC2131/32)
AD1.4 (LPC2138)
0
0
GPIO Port 0.14
0
1
Reserved (LPC2131/32)
DCD (UART1) (LPC2134/36/38)
1
0
EINT1
1
1
SDA1 (I2C1)
0
0
GPIO Port 0.15
0
1
Reserved (LPC2131/32)
RI (UART1) (LPC2134/36/38)
1
0
EINT2
1
1
Reserved (LPC2131/32)
AD1.5 (LPC2134/36/38)
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0
0
0
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Single-chip 16/32-bit microcontrollers
6.8 Pin function select register 1 (PINSEL1 - 0xE002C004)
The PINSEL1 register controls the functions of the pins as per the settings listed in
Table 7. The direction control bit in the IODIR register is effective only when the GPIO
function is selected for a pin. For other functions direction is controlled automatically.
Settings other than those shown in Table 7 are reserved, and should not be used.
Table 7:
Pin function select register 1 (PINSEL1 - 0xE002C004)
PINSEL1
Pin Name
Value
1:0
P0.16
0
3:2
5:4
7:6
9:8
11:10
13:12
15:14
P0.17
P0.18
P0.19
P0.20
P0.21
P0.22
P0.23
Function
Value after reset
0
GPIO Port 0.16
0
0
1
EINT0
1
0
Match 0.2 (Timer 0)
1
1
Capture 0.2 (Timer 0)
0
0
GPIO Port 0.17
0
1
Capture 1.2 (Timer 1)
1
0
SCK (SSP)
1
1
Match 1.2 (Timer 1)
0
0
GPIO Port 0.18
0
1
Capture 1.3 (Timer 1)
1
0
MISO (SSP)
1
1
Match 1.3 (Timer 1)
0
0
GPIO Port 0.19
0
1
Match 1.2 (Timer 1)
1
0
MOSI (SSP)
1
1
Capture 1.2 (Timer 1)
0
0
GPIO Port 0.20
0
1
Match 1.3 (Timer 1)
1
0
SSEL (SSP)
1
1
EINT3
0
0
GPIO Port 0.21
0
1
PWM5
1
0
Reserved (LPC2131/32)
AD1.6 (LPC2134/36/38)
1
1
Capture 1.3 (Timer 1)
0
0
0
0
0
0
GPIO Port 0.22
0
1
Reserved (LPC2131/32)
AD1.7 (LPC2134/36/38)
1
0
Capture 0.0 (Timer 0)
1
1
Match 0.0 (Timer 0)
0
0
GPIO Port 0.23
0
1
Reserved
1
0
Reserved
1
1
Reserved
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0
0
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Single-chip 16/32-bit microcontrollers
Table 7:
Pin function select register 1 (PINSEL1 - 0xE002C004) …continued
PINSEL1
Pin Name
Value
Function
Value after reset
17:16
P0.24
0
0
Reserved
0
0
1
Reserved
1
0
Reserved
1
1
Reserved
0
0
GPIO Port 0.25
0
1
AD0.4
1
0
Reserved (LPC2131)
AOUT (DAC) (LPC2132/34/36/38)
1
1
Reserved
0
0
GPIO Port 0.26
0
1
AD0.5
1
0
Reserved
1
1
Reserved
0
0
GPIO Port 0.27
0
1
AD0.0
1
0
Capture 0.1 (Timer 0)
1
1
Match 0.1 (Timer 0)
0
0
GPIO Port 0.28
0
1
AD0.1
1
0
Capture 0.2 (Timer 0)
1
1
Match 0.2 (Timer 0)
0
0
GPIO Port 0.29
0
1
AD0.2
1
0
Capture 0.3 (Timer 0)
1
1
Match 0.3 (Timer 0)
0
0
GPIO Port 0.30
0
1
AD0.3
1
0
EINT3
1
1
Capture 0.0 (Timer 0)
0
0
GPIO Port
0
1
Reserved
1
0
Reserved
1
1
Reserved
19:18
21:20
23:22
25:24
27:26
29:28
31:30
P0.25
P0.26
P0.27
P0.28
P0.29
P0.30
P0.31
0
0
0
0
0
0
0
6.9 Pin function select register 2 (PINSEL2 - 0xE002C014)
The PINSEL2 register controls the functions of the pins as per the settings listed in
Table 8. The direction control bit in the IODIR register is effective only when the GPIO
function is selected for a pin. For other functions direction is controlled automatically.
Settings other than those shown in Table 8 are reserved, and should not be used.
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Table 8:
Pin function select register 2 (PINSEL2 - 0xE002C014)
PINSEL2 bits
Description
Reset value
1:0
Reserved
-
2
When 0, pins P1.31:26 are GPIO pins. When 1,
P1.31:26 are used as Debug port.
0
3
When 0, pins P1.25:16 are used as GPIO pins. When 1, 0
P1.25:16 are used as Trace port.
31:30
Reserved
-
6.10 General purpose parallel I/O
Device pins that are not connected to a specific peripheral function are controlled by the
GPIO registers. Pins may be dynamically configured as inputs or outputs. Separate
registers allow setting or clearing any number of outputs simultaneously. The value of the
output register may be read back, as well as the current state of the port pins.
6.10.1 Features
• Direction control of individual bits.
• Separate control of output set and clear.
• All I/O default to inputs after reset.
6.11 10-bit A/D converter
The LPC2131/32 contain one and the LPC2134/2136/2138 contains two analog to digital
converters. These converters are single 10-bit successive approximation analog to digital
converters with eight multiplexed channels.
6.11.1 Features
•
•
•
•
•
Measurement range of 0 V to 3.3 V.
Each converter capable of performing more than 400,000 10-bit samples per second.
Burst conversion mode for single or multiple inputs.
Optional conversion on transition on input pin or Timer Match signal.
Global Start command for both converters (LPC2134/2136/2138 only).
6.12 10-bit D/A converter
This peripheral is available in the LPC2132/2134/2136/2138 only. The D/A converter
enables the LPC2132/2134/2136/2138 to generate variable analog output.
6.12.1 Features
•
•
•
•
10 bit digital to analog converter.
Buffered output.
Power-down mode available.
Selectable speed versus power.
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6.13 UARTs
The LPC2131/2132/2134/2136/2138 each contain two UARTs. In addition to standard
transmit and receive data lines, the LPC2134/2136/2138 UART1 also provides a full
modem control handshake interface.
6.13.1 Features
•
•
•
•
•
•
16 byte Receive and Transmit FIFOs.
Register locations conform to ‘550 industry standard.
Receiver FIFO trigger points at 1, 4, 8, and 14 bytes
Built-in baud rate generator.
Standard modem interface signals included on UART1. (LPC2134/2136/2138 only)
The LPC2131/2132/2134/2136/2138 transmission FIFO control enables
implementation of software (XON/XOFF) flow control on both UARTs and hardware
(CTS/RTS) flow control on the LPC2134/2136/2138 UART1 only.
6.14 I2C-bus serial I/O controller
The LPC2131/2132/2134/2136/2138 each contain two I2C-bus controllers.
The I2C-bus is bi-directional, for inter-IC control using only two wires: a serial clock line
(SCL), and a serial data line (SDA). Each device is recognized by a unique address and
can operate as either a receiver-only device (e.g., an LCD driver or a transmitter with the
capability to both receive and send information (such as memory)). Transmitters and/or
receivers can operate in either master or slave mode, depending on whether the chip has
to initiate a data transfer or is only addressed. The I2C-bus is a multi-master bus, it can be
controlled by more than one bus master connected to it.
The I2C-bus implemented in LPC2131/2132/2134/2136/2138 supports bit rates up to
400 kbit/s (Fast I2C).
6.14.1 Features
•
•
•
•
•
•
Standard I2C compliant bus interface.
Easy to configure as Master, Slave, or Master/Slave.
Programmable clocks allow versatile rate control.
Bidirectional data transfer between masters and slaves.
Multi-master bus (no central master).
Arbitration between simultaneously transmitting masters without corruption of serial
data on the bus.
• Serial clock synchronization allows devices with different bit rates to communicate via
one serial bus.
• Serial clock synchronization can be used as a handshake mechanism to suspend and
resume serial transfer.
• The I2C-bus may be used for test and diagnostic purposes.
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6.15 SPI serial I/O controller
The LPC2131/2132/2134/2136/2138 each contain one SPI controller. The SPI is a full
duplex serial interface, designed to be able to handle multiple masters and slaves
connected to a given bus. Only a single master and a single slave can communicate on
the interface during a given data transfer. During a data transfer the master always sends
a byte of data to the slave, and the slave always sends a byte of data to the master.
6.15.1 Features
•
•
•
•
Compliant with Serial Peripheral Interface (SPI) specification.
Synchronous, Serial, Full Duplex, Communication.
Combined SPI master and slave.
Maximum data bit rate of one eighth of the input clock rate.
6.16 SSP serial I/O controller
The LPC2131/2132/2134/2136/2138 each contain one Serial Synchronous Port controller
(SSP). The SSP controller is capable of operation on a SPI, 4-wire SSI, or Microwire bus.
It can interact with multiple masters and slaves on the bus. However, only a single master
and a single slave can communicate on the bus during a given data transfer. The SSP
supports full duplex transfers, with frames of 4 bits to 16 bits of data flowing from the
master to the slave and from the slave to the master. Often only one of these data flows
carries meaningful data.
6.16.1 Features
• Compatible with Motorola SPI, 4-wire TI SSI and National Semiconductor Microwire
buses.
•
•
•
•
Synchronous Serial Communication.
Master or slave operation.
8-frame FIFOs for both transmit and receive.
Four bits to 16 bits per frame.
6.17 General purpose timers/external event counters
The Timer/Counter is designed to count cycles of the peripheral clock (PCLK) or an
externally supplied clock, and optionally generate interrupts or perform other actions at
specified timer values, based on four match registers. It also includes four capture inputs
to trap the timer value when an input signal transitions, optionally generating an interrupt.
Multiple pins can be selected to perform a single capture or match function, providing an
application with ‘or’ and ‘and’, as well as ‘broadcast’ functions among them.
At any given time only one of peripheral’s capture inputs can be selected as an external
event signal source, i.e., timer’s clock. The rate of external events that can be successfully
counted is limited to PCLK/2. In this configuration, unused capture lines can be selected
as regular timer capture inputs.
6.17.1 Features
• A 32-bit Timer/Counter with a programmable 32-bit Prescaler.
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• External Event Counter or timer operation.
• Four 32-bit capture channels per timer/counter that can take a snapshot of the timer
value when an input signal transitions. A capture event may also optionally generate
an interrupt.
• Four 32-bit match registers that allow:
– Continuous operation with optional interrupt generation on match.
– Stop timer on match with optional interrupt generation.
– Reset timer on match with optional interrupt generation.
• Four external outputs per timer/counter corresponding to match registers, with the
following capabilities:
– Set LOW on match.
– Set HIGH on match.
– Toggle on match.
– Do nothing on match.
6.18 Watchdog timer
The purpose of the watchdog is to reset the microcontroller within a reasonable amount of
time if it enters an erroneous state. When enabled, the watchdog will generate a system
reset if the user program fails to ‘feed’ (or reload) the watchdog within a predetermined
amount of time.
6.18.1 Features
• Internally resets chip if not periodically reloaded.
• Debug mode.
• Enabled by software but requires a hardware reset or a watchdog reset/interrupt to be
disabled.
•
•
•
•
Incorrect/Incomplete feed sequence causes reset/interrupt if enabled.
Flag to indicate watchdog reset.
Programmable 32-bit timer with internal pre-scaler.
Selectable time period from (TPCLK × 256 × 4) to (TPCLK × 232 × 4) in multiples of
TPCLK × 4.
6.19 Real-time clock
The Real-Time Clock (RTC) is designed to provide a set of counters to measure time
when normal or idle operating mode is selected. The RTC has been designed to use little
power, making it suitable for battery powered systems where the CPU is not running
continuously (Idle mode).
6.19.1 Features
• Measures the passage of time to maintain a calendar and clock.
• Ultra-low power design to support battery powered systems.
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• Provides Seconds, Minutes, Hours, Day of Month, Month, Year, Day of Week, and Day
of Year.
• Can use either the RTC dedicated 32 kHz oscillator input or clock derived from the
external crystal/oscillator input at XTAL1. Programmable Reference Clock Divider
allows fine adjustment of the RTC.
• Dedicated power supply pin can be connected to a battery or the main 3.3 V.
6.20 Pulse width modulator
The PWM is based on the standard Timer block and inherits all of its features, although
only the PWM function is pinned out on the LPC2131/2132/2134/2136/2138. The Timer is
designed to count cycles of the peripheral clock (PCLK) and optionally generate interrupts
or perform other actions when specified timer values occur, based on seven match
registers. The PWM function is also based on match register events.
The ability to separately control rising and falling edge locations allows the PWM to be
used for more applications. For instance, multi-phase motor control typically requires three
non-overlapping PWM outputs with individual control of all three pulse widths and
positions.
Two match registers can be used to provide a single edge controlled PWM output. One
match register (MR0) controls the PWM cycle rate, by resetting the count upon match.
The other match register controls the PWM edge position. Additional single edge
controlled PWM outputs require only one match register each, since the repetition rate is
the same for all PWM outputs. Multiple single edge controlled PWM outputs will all have a
rising edge at the beginning of each PWM cycle, when an MR0 match occurs.
Three match registers can be used to provide a PWM output with both edges controlled.
Again, the MR0 match register controls the PWM cycle rate. The other match registers
control the two PWM edge positions. Additional double edge controlled PWM outputs
require only two match registers each, since the repetition rate is the same for all PWM
outputs.
With double edge controlled PWM outputs, specific match registers control the rising and
falling edge of the output. This allows both positive going PWM pulses (when the rising
edge occurs prior to the falling edge), and negative going PWM pulses (when the falling
edge occurs prior to the rising edge).
6.20.1 Features
• Seven match registers allow up to six single edge controlled or three double edge
controlled PWM outputs, or a mix of both types.
• The match registers also allow:
– Continuous operation with optional interrupt generation on match.
– Stop timer on match with optional interrupt generation.
– Reset timer on match with optional interrupt generation.
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• Supports single edge controlled and/or double edge controlled PWM outputs. Single
edge controlled PWM outputs all go HIGH at the beginning of each cycle unless the
output is a constant LOW. Double edge controlled PWM outputs can have either edge
occur at any position within a cycle. This allows for both positive going and negative
going pulses.
• Pulse period and width can be any number of timer counts. This allows complete
flexibility in the trade-off between resolution and repetition rate. All PWM outputs will
occur at the same repetition rate.
• Double edge controlled PWM outputs can be programmed to be either positive going
or negative going pulses.
• Match register updates are synchronized with pulse outputs to prevent generation of
erroneous pulses. Software must ‘release’ new match values before they can become
effective.
• May be used as a standard timer if the PWM mode is not enabled.
• A 32-bit Timer/Counter with a programmable 32-bit Prescaler.
6.21 System control
6.21.1 Crystal oscillator
On-chip integrated oscillator operates with external crystal in range of 1 MHz to 30 MHz
and with external oscillator up to 50 MHz. The oscillator output frequency is called fosc and
the ARM processor clock frequency is referred to as CCLK for purposes of rate equations,
etc. fosc and CCLK are the same value unless the PLL is running and connected. Refer to
Section 6.21.2 “PLL” for additional information.
6.21.2 PLL
The PLL accepts an input clock frequency in the range of 10 MHz to 25 MHz. The input
frequency is multiplied up into the range of 10 MHz to 60 MHz with a Current Controlled
Oscillator (CCO). The multiplier can be an integer value from 1 to 32 (in practice, the
multiplier value cannot be higher than 6 on this family of microcontrollers due to the upper
frequency limit of the CPU). The CCO operates in the range of 156 MHz to 320 MHz, so
there is an additional divider in the loop to keep the CCO within its frequency range while
the PLL is providing the desired output frequency. The output divider may be set to divide
by 2, 4, 8, or 16 to produce the output clock. Since the minimum output divider value is 2,
it is insured that the PLL output has a 50 % duty cycle.The PLL is turned off and bypassed
following a chip reset and may be enabled by software. The program must configure and
activate the PLL, wait for the PLL to Lock, then connect to the PLL as a clock source. The
PLL settling time is 100 µs.
6.21.3 Reset and wake-up timer
Reset has two sources on the LPC2131/2132/2134/2136/2138: the RESET pin and
watchdog reset. The RESET pin is a Schmitt trigger input pin with an additional glitch filter.
Assertion of chip reset by any source starts the wake-up timer (see wake-up timer
description below), causing the internal chip reset to remain asserted until the external
reset is de-asserted, the oscillator is running, a fixed number of clocks have passed, and
the on-chip Flash controller has completed its initialization.
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When the internal reset is removed, the processor begins executing at address 0, which is
the reset vector. At that point, all of the processor and peripheral registers have been
initialized to predetermined values.
The wake-up timer ensures that the oscillator and other analog functions required for chip
operation are fully functional before the processor is allowed to execute instructions. This
is important at power on, all types of reset, and whenever any of the aforementioned
functions are turned off for any reason. Since the oscillator and other functions are turned
off during Power-down mode, any wake-up of the processor from Power-down mode
makes use of the wake-up timer.
The wake-up timer monitors the crystal oscillator as the means of checking whether it is
safe to begin code execution. When power is applied to the chip, or some event caused
the chip to exit Power-down mode, some time is required for the oscillator to produce a
signal of sufficient amplitude to drive the clock logic. The amount of time depends on
many factors, including the rate of VDD ramp (in the case of power on), the type of crystal
and its electrical characteristics (if a quartz crystal is used), as well as any other external
circuitry (e.g. capacitors), and the characteristics of the oscillator itself under the existing
ambient conditions.
6.21.4 Brown-out detector
The LPC2131/2132/2134/2136/2138 include 2-stage monitoring of the voltage on the VDD
pins. If this voltage falls below 2.9 V, the BOD asserts an interrupt signal to the Vectored
Interrupt Controller. This signal can be enabled for interrupt; if not, software can monitor
the signal by reading dedicated register.
The second stage of low-voltage detection asserts reset to inactivate the
LPC2131/2132/2134/2136/2138 when the voltage on the VDD pins falls below 2.6 V. This
reset prevents alteration of the Flash as operation of the various elements of the chip
would otherwise become unreliable due to low voltage. The BOD circuit maintains this
reset down below 1 V, at which point the POR circuitry maintains the overall reset.
Both the 2.9 V and 2.6 V thresholds include some hysteresis. In normal operation, this
hysteresis allows the 2.9 V detection to reliably interrupt, or a regularly-executed event
loop to sense the condition.
6.21.5 Code security
This feature of the LPC2131/2132/2134/2136/2138 allow an application to control whether
it can be debugged or protected from observation.
If after reset on-chip boot-loader detects a valid checksum in Flash and reads
0x87654321 from address 0x1FC in Flash, debugging will be disabled and thus the code
in Flash will be protected from observation. Once debugging is disabled, it can be enabled
only by performing a full chip erase using the ISP.
6.21.6 External interrupt inputs
The LPC2131/2132/2134/2136/2138 include up to nine edge or level sensitive External
Interrupt Inputs as selectable pin functions. When the pins are combined, external events
can be processed as four independent interrupt signals. The External Interrupt Inputs can
optionally be used to wake up the processor from Power-down mode.
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6.21.7 Memory Mapping Control
The Memory Mapping Control alters the mapping of the interrupt vectors that appear
beginning at address 0x00000000. Vectors may be mapped to the bottom of the on-chip
Flash memory, or to the on-chip static RAM. This allows code running in different memory
spaces to have control of the interrupts.
6.21.8 Power Control
The LPC2131/2132/2134/2136/2138 support two reduced power modes: Idle mode and
Power-down mode.
In Idle mode, execution of instructions is suspended until either a reset or interrupt occurs.
Peripheral functions continue operation during Idle mode and may generate interrupts to
cause the processor to resume execution. Idle mode eliminates power used by the
processor itself, memory systems and related controllers, and internal buses.
In Power-down mode, the oscillator is shut down and the chip receives no internal clocks.
The processor state and registers, peripheral registers, and internal SRAM values are
preserved throughout Power-down mode and the logic levels of chip output pins remain
static. The Power-down mode can be terminated and normal operation resumed by either
a reset or certain specific interrupts that are able to function without clocks. Since all
dynamic operation of the chip is suspended, Power-down mode reduces chip power
consumption to nearly zero.
Selecting an external 32 kHz clock instead of the PCLK as a clock-source for the on-chip
RTC will enable the microcontroller to have the RTC active during Power-down mode.
Power-down current is increased with RTC active. However, it is significantly lower than in
Idle mode.
A Power Control for Peripherals feature allows individual peripherals to be turned off if
they are not needed in the application, resulting in additional power savings.
6.21.9 VPB bus
The VPB divider determines the relationship between the processor clock (CCLK) and the
clock used by peripheral devices (PCLK). The VPB divider serves two purposes. The first
is to provide peripherals with the desired PCLK via VPB bus so that they can operate at
the speed chosen for the ARM processor. In order to achieve this, the VPB bus may be
slowed down to 1⁄2 to 1⁄4 of the processor clock rate. Because the VPB bus must work
properly at power-up (and its timing cannot be altered if it does not work since the VPB
divider control registers reside on the VPB bus), the default condition at reset is for the
VPB bus to run at 1⁄4 of the processor clock rate. The second purpose of the VPB divider
is to allow power savings when an application does not require any peripherals to run at
the full processor rate. Because the VPB divider is connected to the PLL output, the PLL
remains active (if it was running) during Idle mode.
6.22 Emulation and debugging
The LPC2131/2132/2134/2136/2138 support emulation and debugging via a JTAG serial
port. A trace port allows tracing program execution. Debugging and trace functions are
multiplexed only with GPIOs on Port 1. This means that all communication, timer and
interface peripherals residing on Port 0 are available during the development and
debugging phase as they are when the application is run in the embedded system itself.
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6.22.1 EmbeddedICE
Standard ARM EmbeddedICE logic provides on-chip debug support. The debugging of
the target system requires a host computer running the debugger software and an
EmbeddedICE protocol convertor. EmbeddedICE protocol convertor converts the Remote
Debug Protocol commands to the JTAG data needed to access the ARM core.
The ARM core has a Debug Communication Channel function built-in. The debug
communication channel allows a program running on the target to communicate with the
host debugger or another separate host without stopping the program flow or even
entering the debug state. The debug communication channel is accessed as a
co-processor 14 by the program running on the ARM7TDMI-S core. The debug
communication channel allows the JTAG port to be used for sending and receiving data
without affecting the normal program flow. The debug communication channel data and
control registers are mapped in to addresses in the EmbeddedICE logic.
6.22.2 Embedded trace
Since the LPC2131/2132/2134/2136/2138 have significant amounts of on-chip memory, it
is not possible to determine how the processor core is operating simply by observing the
external pins. The Embedded Trace Macrocell provides real-time trace capability for
deeply embedded processor cores. It outputs information about processor execution to
the trace port.
The ETM is connected directly to the ARM core and not to the main AMBA system bus. It
compresses the trace information and exports it through a narrow trace port. An external
trace port analyzer must capture the trace information under software debugger control.
Instruction trace (or PC trace) shows the flow of execution of the processor and provides a
list of all the instructions that were executed. Instruction trace is significantly compressed
by only broadcasting branch addresses as well as a set of status signals that indicate the
pipeline status on a cycle by cycle basis. Trace information generation can be controlled
by selecting the trigger resource. Trigger resources include address comparators,
counters and sequencers. Since trace information is compressed the software debugger
requires a static image of the code being executed. Self-modifying code can not be traced
because of this restriction.
6.22.3 RealMonitor
RealMonitor is a configurable software module, developed by ARM Inc., which enables
real time debug. It is a lightweight debug monitor that runs in the background while users
debug their foreground application. It communicates with the host using the DCC, which is
present in the EmbeddedICE logic. The LPC2131/2132/2134/2136/2138 contain a
specific configuration of RealMonitor software programmed into the on-chip Flash
memory.
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7. Limiting values
Table 9:
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). [1]
Symbol
Parameter
VDD
Conditions
Min
Max
Unit
supply voltage, core and external rail
−0.5
+3.6
V
VDDA
analog 3.3 V pad supply voltage
−0.5
4.6
V
VBAT
RTC power supply voltage
−0.5
4.6
V
VREF
A/D converter reference voltage
−0.5
4.6
V
VIA
analog input voltage on A/D related pins
VI
DC input voltage, 5 V tolerant I/O pins
VI
DC input voltage, other I/O pins
IDD
DC supply current per supply pin
−0.5
5.1
V
[2] [3]
−0.5
6.0
V
[2]
−0.5
VDD +
0.5 [4]
V
-
100 [5]
mA
mA
ISS
DC ground current per ground pin
-
100 [5]
Tstg
storage temperature [6]
−40
125
°C
Ptot(pack)
total power dissipation
-
1.5
W
based on package
heat transfer, not
device power
consumption
[1]
The following applies to the Limiting values:
a) Stresses above those listed under Limiting values may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any conditions other than those described in Section 8 “Static characteristics”and
Section 9 “Dynamic characteristics” of this specification is not implied.
b) This product includes circuitry specifically designed for the protection of its internal devices from the damaging effects of excessive
static charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying greater than the rated maximum.
c) Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS unless
otherwise noted.
[2]
Including voltage on outputs in 3-state mode.
[3]
Only valid when the VDD supply voltage is present.
[4]
Not to exceed 4.6 V.
[5]
The peak current is limited to 25 times the corresponding maximum current.
[6]
Dependent on package type.
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8. Static characteristics
Table 10: DC characteristics
Ta = −40 °C to +85 °C for commercial applications, unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ [1]
Max
Unit
VDD
supply voltage, core and
external rail
3.0
3.3
3.6
V
VDDA
analog 3.3 V pad supply
voltage
2.5
3.3
3.6
V
VBAT
RTC supply voltage
2.0 [2]
3.3
3.6
V
VREF
A/D converter reference
voltage
3.0
3.3
3.6
V
-
-
3
µA
Standard port pins, RESET, RTCK
IIL
LOW-state input current
VI = 0 V; no pull-up
IIH
HIGH-state input current
VI = VDD; no-pull-down
-
-
3
µA
IOZ
3-state output leakage
current
VO = 0 V, VO = VDD; no
pull-up/down
-
-
3
µA
Ilatch
I/O latch-up current
−(0.5 VDD) < V < (1.5 VDD)
-
-
100
mA
0
-
5.5
V
Tj < 125 °C
VI
input voltage
pin configured to provide a
digital function
output active
[3] [4] [5]
VO
output voltage
0
-
VDD
V
VIH
HIGH-state input voltage
2.0
-
-
V
VIL
LOW-state input voltage
-
-
0.8
V
Vhys
hysteresis voltage
-
0.4
-
V
VOH
HIGH-state output
voltage [6]
IOH = −4 mA
VDD − 0.4
-
-
V
VOL
LOW-state output voltage [6]
IOL = −4 mA
-
-
0.4
V
IOH
HIGH-state output current [6] VOH = VDD − 0.4 V
−4
-
-
mA
VOL = 0.4 V
4
-
-
mA
current [6]
IOL
LOW-state output
IOHS
HIGH-state short circuit
current [7]
VOH = 0 V
-
-
−45
mA
IOLS
LOW-state short circuit
current [7]
VOL = VDDA
-
-
50
mA
Ipd
pull-down current
VI = 5 V [8]
10
50
150
µA
Ipu
pull-up current (applies to
P1.16 to P1.25)
VI = 0 V
−15
−50
−85
µA
0
0
0
µA
active mode supply current
VDD = 3.3 V, Ta = 25 °C,
code
-
10
-
mA
CCLK = 60 MHz
(other parameters as above)
-
40
-
mA
VDD = 3.3 V, Ta = +25 °C,
-
60
-
µA
VDD = 3.3 V, Ta = +85 °C
-
<tbd>
500
µA
IDD
VDD < VI < 5
V [8]
while(1){}
executed from FLASH, no
active peripherals
CCLK = 10 MHz
Power-down mode
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Philips Semiconductors
Single-chip 16/32-bit microcontrollers
Table 10: DC characteristics …continued
Ta = −40 °C to +85 °C for commercial applications, unless otherwise specified.
Min
Typ [1]
Max
Unit
VDD = 3.0 V, VBAT = 2.5 V
-
14
-
µA
VDD = 3.0 V, VBAT = 3.0 V
-
16
-
µA
VDD = 3.3 V, VBAT = 3.3 V
-
18
-
µA
VDD = 3.6 V, VBAT = 3.6 V
-
20
-
µA
VDD = 3.0 V, VBAT = 3.0 V
-
78
-
µA
VDD = 3.3 V, VBAT = 3.3 V
-
80
-
µA
VDD = 3.6 V, VBAT = 3.6 V
-
82
-
µA
CCLK = 6 MHz
-
21
-
µA
CCLK = 25 MHz
-
23
-
µA
CCLK = 50 MHz
-
27
-
µA
CCLK = 60 MHz
-
30
-
µA
-
V
Symbol Parameter
Conditions
IBAT
RTC clock = 32 kHz
(from RTXC pins),
Ta = +25 °C
Power-down mode VBAT
supply current
active mode VBAT supply
current
active mode VBAT supply
current optimized for low
battery consumption
I2C-bus
CCLK = 60 MHz,
PCLK = 15 MHz,
PCLK enabled to RTCK,
RTC clock = 32 kHz
(from RTXC pins),
Ta = +25 °C
PCLK disabled to RTCK in
the PCONP register,
RTC clock = 32 kHz
(from RTXC pins),
Ta = +25 °C, VBAT = 3.3 V
pins
VIH
HIGH-state input voltage [9]
Vtol is from 4.5 V to 5.5 V
0.7Vtol
-
VIL
LOW-state input
voltage [9]
Vtol is from 4.5 V to 5.5 V
-
-
0.3Vtol
V
Vhys
hysteresis voltage
Vtol is from 4.5 V to 5.5 V
-
0.5Vtol
-
V
IOLS = 3 mA
-
-
0.4
V
voltage [6]
VOL
LOW-state output
ILI
input leakage current to VSS VI = VDD
-
2
4
µA
VI = 5 V
-
10
22
µA
Oscillator pins
VXTAL1
XTAL1 input voltages
0
-
1.8
V
VXTAL2
XTAL2 output voltages
0
-
1.8
V
VRTXC1
RTXC1 input voltages
0
-
1.8
V
VRTXC2
RTXC2 output voltages
0
-
1.8
V
[1]
Typical ratings are not guaranteed. The values listed are at room temperature (+25 ˚C), nominal supply voltages.
[2]
The RTC typically fails when VBAT drops below 1.6 V.
[3]
Including voltage on outputs in 3-state mode.
[4]
VDD supply voltages must be present.
[5]
3-state outputs go into 3-state mode when VDD is grounded.
[6]
Accounts for 100 mV voltage drop in all supply lines.
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LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
[7]
Only allowed for a short time period.
[8]
Minimum condition for VI = 4.5 V, maximum condition for VI = 5.5 V.
[9]
The input threshold voltage of I2C-bus pins meets the I2C-bus specification, so an input voltage below 1.5 V will be recognized as a logic
0 while an input voltage above 3.0 V will be recognized as a logic 1.
Table 11: A/D converter DC electrical characteristics
VDDA = 2.5 V to 3.6 V; Ta = −40 °C to +85 °C unless otherwise specified. A/D converter frequency 4.5 MHz.
Symbol
Parameter
VIA
Ciss
ED
differential
non-linearity
[1] [2]
integral non-linearity
EL(adj)
EO
EG
ET
Conditions
Min
Typ
analog input voltage
0
-
analog input
capacitance
-
±1
LSB
[1] [4]
-
±2
LSB
offset error
[1] [5]
-
±3
LSB
gain error
[1] [6]
-
±0.5
%
absolute error
[1] [7]
-
±4
LSB
[1]
Conditions: VSSA = 0 V, VDDA = 3.3 V.
[2]
The A/D is monotonic, there are no missing codes.
Max
Unit
VDDA
V
1
pF
[3]
[3]
The differential non-linearity (ED) is the difference between the actual step width and the ideal step width. See Figure 6.
[4]
The integral no-linearity (EL(adj)) is the peak difference between the center of the steps of the actual and the ideal transfer curve after
appropriate adjustment of gain and offset errors. See Figure 6.
[5]
The offset error (EO) is the absolute difference between the straight line which fits the actual curve and the straight line which fits the
ideal curve. See Figure 6.
[6]
The gain error (EG) is the relative difference in percent between the straight line fitting the actual transfer curve after removing offset
error, and the straight line which fits the ideal transfer curve. See Figure 6.
[7]
The absolute voltage error (ET) is the maximum difference between the center of the steps of the actual transfer curve of the
non-calibrated A/D and the ideal transfer curve. See Figure 6.
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Philips Semiconductors
Single-chip 16/32-bit microcontrollers
gain
error
EG
offset
error
EO
1023
1022
1021
1020
1019
1018
(2)
7
code
out
(1)
6
5
(5)
4
(4)
3
(3)
2
1 LSB
(ideal)
1
0
1
2
3
4
5
6
7
1018
1019
1020
1021
1022
1023
1024
VIA (LSBideal)
1 LSB =
offset
error
EO
VDDA − VSSA
1024
002aab136
(1) Example of an actual transfer curve.
(2) The ideal transfer curve.
(3) Differential non-linearity (ED).
(4) Integral non-linearity (EL(adj)).
(5) Center of a step of the actual transfer curve.
Fig 6. A/D conversion characteristics.
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Rev. 02 — 15 April 2005
33 of 41
Philips Semiconductors
LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers
9. Dynamic characteristics
Table 12: AC characteristics
Ta = 0 °C to +70 °C for commercial applications, −40 °C to +85 °C for industrial applications, VDD over specified ranges [1]
Symbol
Parameter
Conditions
Min
Typ [1]
Max
Unit
External clock
fosc
oscillator frequency
10
-
25
MHz
Tclk
oscillator clock period
40
-
100
ns
tCHCX
clock HIGH time
Tclk × 0.4
-
-
ns
tCLCX
clock LOW time
Tclk × 0.4
-
-
ns
tCLCH
clock rise time
-
-
5
ns
tCHCL
clock fall time
-
-
5
ns
Port pins (except P0.2 and P0.3)
tr(O)
output rise time
-
10
-
ns
tf(O)
output fall time
-
10
-
ns
20 + 0.1 ×
Cb [2]
-
-
ns
I2C-bus pins (P0.2 and P0.3)
output fall time
tof
VIH to VIL
[1]
Parameters are valid over operating temperature range unless otherwise specified.
[2]
Bus capacitance Cb in pF, from 10 pF to 400 pF.
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Philips Semiconductors
Single-chip 16/32-bit microcontrollers
9.1 Timing
VDD − 0.5 V
0.2VDD + 0.9
0.2VDD − 0.1 V
0.45 V
tCHCX
tCHCL
tCLCX
tCLCH
Tclk
002aab137
Fig 7. External clock timing.
9.2 LPC2138 power consumption measurements
002aab404
40
(1)
(2)
(3)
(4)
(5)
IDD current
(mA)
30
20
10
0
0
10
20
30
40
50
60
frequency (MHz)
Test conditions: code executed from Flash; all peripherals are enabled in PCONP register; PCLK = CCLK/4.
(1) 3.6 VDD at −60 °C (max)
(2) 3.6 VDD at 140 °C
(3) 3.6 VDD at 25 °C
(4) 3.3 VDD at 25 °C (typical)
(5) 3.3 VDD at 95 °C (typical)
Fig 8. IDD active measured at different frequencies (CCLK) and temperatures.
9397 750 14868
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LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
002aab403
15
IDD current
(mA)
(1)
(2)
(3)
(4)
(5)
10
5
0
0
10
20
30
40
60
50
frequency (MHz)
Test conditions: Idle mode entered executing code from Flash; all peripherals are enabled in PCONP register;
PCLK = CCLK/4.
(1) 3.6 VDD at 140 °C (max)
(2) 3.6 VDD at −60 °C
(3) 3.6 VDD at 25 °C
(4) 3.3 VDD at 25 °C (typical)
(5) 3.3 VDD at 95 °C (typical)
Fig 9. IDD idle measured at different frequencies (CCLK) and temperatures.
002aab405
500
IDD current
(uA)
(1)
(2)
(3)
400
(4)
300
200
100
0
-60
-20
20
60
100
140
temp (C)
Test conditions: Power-down mode entered executing code from Flash; all peripherals are enabled in PCONP register.
(1) 3.6 VDD
(2) 3.3 VDD (max)
(3) 3.0 VDD
(4) 3.3 VDD (typical)
Fig 10. IDD power-down measured at different temperatures.
9397 750 14868
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Rev. 02 — 15 April 2005
36 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
10. Package outline
LQFP64: plastic low profile quad flat package; 64 leads; body 10 x 10 x 1.4 mm
SOT314-2
c
y
X
A
48
33
49
32
ZE
e
E HE
A
A2
(A 3)
A1
wM
θ
bp
pin 1 index
64
Lp
L
17
detail X
16
1
ZD
e
v M A
wM
bp
D
B
HD
v M B
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
mm
1.6
0.20
0.05
1.45
1.35
0.25
0.27
0.17
0.18
0.12
10.1
9.9
10.1
9.9
0.5
HD
HE
12.15 12.15
11.85 11.85
L
Lp
v
w
y
1
0.75
0.45
0.2
0.12
0.1
Z D (1) Z E (1)
1.45
1.05
1.45
1.05
θ
7o
o
0
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT314-2
136E10
MS-026
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
00-01-19
03-02-25
Fig 11. Package outline SOT314-2 (LQFP64).
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Rev. 02 — 15 April 2005
37 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
11. Abbreviations
Table 13:
Acronym list
Acronym
Description
ADC
Analog-to-Digital Converter
BOD
Brown-Out Detection
CPU
Central Processing Unit
DAC
Digital-to-Analog Converter
DCC
Debug Communications Channel
FIFO
First In, First Out
GPIO
General Purpose Input/Output
PLL
Phase-Locked Loop
POR
Power-On Reset
PWM
Pulse Width Modulator
RAM
Random Access Memory
SRAM
Static Random Access Memory
UART
Universal Asynchronous Receiver/Transmitter
VIC
Vector Interrupt Controller
VPB
VLSI Peripheral Bus
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Philips Semiconductors
Single-chip 16/32-bit microcontrollers
12. Revision history
Table 14:
Revision history
Document ID
Release
date
Data sheet status Change
notice
Doc. number
Supersedes
LPC2131_32_34_36_38_2
20050415
Preliminary data
sheet
9397 750 14868
LPC2131_2132_2138_1
Modifications:
LPC2131_2132_2138_1
•
-
Added new devices LPC2134 and LPC2136.
20041118
Preliminary data
sheet
-
9397 750 14868
Preliminary data sheet
9397 750 14008
-
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Rev. 02 — 15 April 2005
39 of 41
LPC2131/2132/2134/2136/2138
Philips Semiconductors
Single-chip 16/32-bit microcontrollers
13. Data sheet status
Level
Data sheet status [1]
Product status [2] [3]
Definition
I
Objective data
Development
This data sheet contains data from the objective specification for product development. Philips
Semiconductors reserves the right to change the specification in any manner without notice.
II
Preliminary data
Qualification
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
III
Product data
Production
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
[1]
Please consult the most recently issued data sheet before initiating or completing a design.
[2]
The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at
URL http://www.semiconductors.philips.com.
[3]
For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
14. Definitions
customers using or selling these products for use in such applications do so
at their own risk and agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Short-form specification — The data in a short-form specification is
extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Right to make changes — Philips Semiconductors reserves the right to
make changes in the products - including circuits, standard cells, and/or
software - described or contained herein in order to improve design and/or
performance. When the product is in full production (status ‘Production’),
relevant changes will be communicated via a Customer Product/Process
Change Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no
license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are
free from patent, copyright, or mask work right infringement, unless otherwise
specified.
Limiting values definition — Limiting values given are in accordance with
the Absolute Maximum Rating System (IEC 60134). Stress above one or
more of the limiting values may cause permanent damage to the device.
These are stress ratings only and operation of the device at these or at any
other conditions above those given in the Characteristics sections of the
specification is not implied. Exposure to limiting values for extended periods
may affect device reliability.
Application information — Applications that are described herein for any
of these products are for illustrative purposes only. Philips Semiconductors
make no representation or warranty that such applications will be suitable for
the specified use without further testing or modification.
16. Trademarks
15. Disclaimers
Notice — All referenced brands, product names, service names and
trademarks are the property of their respective owners.
Life support — These products are not designed for use in life support
appliances, devices, or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors
17. Contact information
For additional information, please visit: http://www.semiconductors.philips.com
For sales office addresses, send an email to: [email protected]
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Philips Semiconductors
LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers
18. Contents
1
2
2.1
3
3.1
4
5
5.1
5.2
6
6.1
6.2
6.3
6.4
6.5
6.5.1
6.6
6.7
6.8
6.9
6.10
6.10.1
6.11
6.11.1
6.12
6.12.1
6.13
6.13.1
6.14
6.14.1
6.15
6.15.1
6.16
6.16.1
6.17
6.17.1
6.18
6.18.1
6.19
6.19.1
6.20
6.20.1
6.21
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Key features . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Ordering options . . . . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pinning information . . . . . . . . . . . . . . . . . . . . . . 4
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 7
Functional description . . . . . . . . . . . . . . . . . . 12
Architectural overview. . . . . . . . . . . . . . . . . . . 12
On-Chip Flash program memory . . . . . . . . . . 12
On-Chip static RAM . . . . . . . . . . . . . . . . . . . . 12
Memory map. . . . . . . . . . . . . . . . . . . . . . . . . . 13
Interrupt controller . . . . . . . . . . . . . . . . . . . . . 13
Interrupt sources. . . . . . . . . . . . . . . . . . . . . . . 14
Pin connect block . . . . . . . . . . . . . . . . . . . . . . 15
Pin function select register 0 (PINSEL0 0xE002C000) . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pin function select register 1 (PINSEL1 0xE002C004) . . . . . . . . . . . . . . . . . . . . . . . . . 18
Pin function select register 2 (PINSEL2 0xE002C014) . . . . . . . . . . . . . . . . . . . . . . . . . 19
General purpose parallel I/O. . . . . . . . . . . . . . 20
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10-bit A/D converter . . . . . . . . . . . . . . . . . . . . 20
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10-bit D/A converter . . . . . . . . . . . . . . . . . . . . 20
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
UARTs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
I2C-bus serial I/O controller . . . . . . . . . . . . . . 21
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SPI serial I/O controller. . . . . . . . . . . . . . . . . . 22
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
SSP serial I/O controller . . . . . . . . . . . . . . . . . 22
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
General purpose timers/external event
counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Watchdog timer. . . . . . . . . . . . . . . . . . . . . . . . 23
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Real-time clock . . . . . . . . . . . . . . . . . . . . . . . . 23
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Pulse width modulator . . . . . . . . . . . . . . . . . . 24
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
System control . . . . . . . . . . . . . . . . . . . . . . . . 25
6.21.1
6.21.2
6.21.3
6.21.4
6.21.5
6.21.6
6.21.7
6.21.8
6.21.9
6.22
6.22.1
6.22.2
6.22.3
7
8
9
9.1
9.2
10
11
12
13
14
15
16
17
Crystal oscillator. . . . . . . . . . . . . . . . . . . . . . .
PLL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset and wake-up timer . . . . . . . . . . . . . . . .
Brown-out detector . . . . . . . . . . . . . . . . . . . . .
Code security . . . . . . . . . . . . . . . . . . . . . . . . .
External interrupt inputs . . . . . . . . . . . . . . . . .
Memory Mapping Control. . . . . . . . . . . . . . . .
Power Control. . . . . . . . . . . . . . . . . . . . . . . . .
VPB bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emulation and debugging. . . . . . . . . . . . . . . .
EmbeddedICE . . . . . . . . . . . . . . . . . . . . . . . .
Embedded trace. . . . . . . . . . . . . . . . . . . . . . .
RealMonitor . . . . . . . . . . . . . . . . . . . . . . . . . .
Limiting values . . . . . . . . . . . . . . . . . . . . . . . .
Static characteristics . . . . . . . . . . . . . . . . . . .
Dynamic characteristics . . . . . . . . . . . . . . . . .
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LPC2138 power consumption measurements
Package outline . . . . . . . . . . . . . . . . . . . . . . . .
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . .
Revision history . . . . . . . . . . . . . . . . . . . . . . .
Data sheet status. . . . . . . . . . . . . . . . . . . . . . .
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact information . . . . . . . . . . . . . . . . . . . .
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© Koninklijke Philips Electronics N.V. 2005
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner. The information presented in this document does
not form part of any quotation or contract, is believed to be accurate and reliable and may
be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under
patent- or other industrial or intellectual property rights.
Date of release: 15 April 2005
Document number: 9397 750 14868
Published in the Netherlands