Datasheet

LPC2141_42_44_46_48_2 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet Rev. 02 — 28 August 2006 8 of 39
Philips Semiconductors
LPC2141/42/44/46/48
Single-chip 16-bit/32-bit microcontrollers
P0.9/RXD1/
PWM6/EINT3
34
[2]
I/O P0.9 — General purpose input/output digital pin (GPIO).
I RXD1 — Receiver input for UART1.
O PWM6 — Pulse Width Modulator output 6.
I EINT3 — External interrupt 3 input.
P0.10/RTS1/
CAP1.0/AD1.2
35
[4]
I/O P0.10 — General purpose input/output digital pin (GPIO).
O RTS1 — Request to Send output for UART1. LPC2144/46/48 only.
I CAP1.0 — Capture input for Timer 1, channel 0.
I AD1.2 — ADC 1, input 2. Available in LPC2144/46/48 only.
P0.11/CTS1/
CAP1.1/SCL1
37
[3]
I/O P0.11 — General purpose input/output digital pin (GPIO).
I CTS1 — Clear to Send input for UART1. Available in LPC2144/46/48 only.
I CAP1.1 — Capture input for Timer 1, channel 1.
I/O SCL1 — I
2
C1 clock input/output. Open-drain output (for I
2
C-bus compliance)
P0.12/DSR1/
MAT1.0/AD1.3
38
[4]
I/O P0.12 — General purpose input/output digital pin (GPIO).
I DSR1 — Data Set Ready input for UART1. Available in LPC2144/46/48 only.
O MAT1.0 — Match output for Timer 1, channel 0.
I AD1.3 — ADC input 3. Available in LPC2144/46/48 only.
P0.13/DTR1/
MAT1.1/AD1.4
39
[4]
I/O P0.13 — General purpose input/output digital pin (GPIO).
O DTR1 — Data Terminal Ready output for UART1. LPC2144/46/48 only.
O MAT1.1 — Match output for Timer 1, channel 1.
I AD1.4 — ADC input 4. Available in LPC2144/46/48 only.
P0.14/DCD1/
EINT1/SDA1
41
[3]
I/O P0.14 — General purpose input/output digital pin (GPIO).
I DCD1 — Data Carrier Detect input for UART1. LPC2144/46/48 only.
I EINT1 — External interrupt 1 input.
I/O SDA1 — I
2
C1 data input/output. Open-drain output (for I
2
C-bus compliance)
Note: LOW on this pin while
RESET is LOW forces on-chip boot loader to
take over control of the part after reset.
P0.15/RI1/
EINT2/AD1.5
45
[4]
I/O P0.15 — General purpose input/output digital pin (GPIO).
I RI1 — Ring Indicator input for UART1. Available in LPC2144/46/48 only.
I EINT2 — External interrupt 2 input.
I AD1.5 — ADC 1, input 5. Available in LPC2144/46/48 only.
P0.16/EINT0/
MAT0.2/CAP0.2
46
[2]
I/O P0.16 — General purpose input/output digital pin (GPIO).
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.
P0.17/CAP1.2/
SCK1/MAT1.2
47
[1]
I/O P0.17 — General purpose input/output digital pin (GPIO).
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.
Table 3. Pin description
…continued
Symbol Pin Type Description