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LPC11C22FB301 Datasheet(PDF) 7 Page - NXP Semiconductors |
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LPC11C22FB301 Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 61 page LPC11CX2_CX4 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 2 — 3 December 2010 7 of 61 NXP Semiconductors LPC11Cx2/Cx4 32-bit ARM Cortex-M0 microcontroller 6.2 Pin description Table 3. LPC11C12/C14 pin description table Symbol Pin Start logic inputs Type Reset state [1] Description PIO0_0 to PIO0_11 Port 0 — Port 0 is a 12-bit I/O port with individual direction and function controls for each bit. The operation of port 0 pins depends on the function selected through the IOCONFIG register block. RESET/PIO0_0 3[2] yes I I; PU RESET — External reset input with 20 ns glitch filter. A LOW-going pulse as short as 50 ns 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. I/O - PIO0_0 — General purpose digital input/output pin with 10 ns glitch filter. PIO0_1/CLKOUT/ CT32B0_MAT2 4[3] yes I/O I; PU PIO0_1 — General purpose digital input/output pin. A LOW level on this pin during reset starts the flash ISP command handler via UART (if PIO0_3 is HIGH) or via C_CAN (if PIO0_3 is LOW). O- CLKOUT — Clockout pin. O- CT32B0_MAT2 — Match output 2 for 32-bit timer 0. PIO0_2/SSEL0/ CT16B0_CAP0 10[3] yes I/O I; PU PIO0_2 — General purpose digital input/output pin. I/O - SSEL0 — Slave Select for SPI0. I- CT16B0_CAP0 — Capture input 0 for 16-bit timer 0. PIO0_3 14[3] yes I/O I; PU PIO0_3 — General purpose digital input/output pin. This pin is monitored during reset: Together with a LOW level on pin PIO0_1, a LOW level starts the flash ISP command handler via C_CAN and a HIGH level starts the flash ISP command handler via UART. PIO0_4/SCL 15[4] yes I/O I; IA PIO0_4 — General purpose digital input/output pin (open-drain). I/O - SCL — I2C-bus, open-drain clock input/output. High-current sink only if I2C Fast-mode Plus is selected in the I/O configuration register. PIO0_5/SDA 16[4] yes I/O I; IA PIO0_5 — General purpose digital input/output pin (open-drain). I/O - SDA — I2C-bus, open-drain data input/output. High-current sink only if I2C Fast-mode Plus is selected in the I/O configuration register. PIO0_6/SCK0 22[3] yes I/O I; PU PIO0_6 — General purpose digital input/output pin. I/O - SCK0 — Serial clock for SPI0. PIO0_7/CTS 23[3] yes I/O I; PU PIO0_7 — General purpose digital input/output pin (high-current output driver). I- CTS — Clear To Send input for UART. PIO0_8/MISO0/ CT16B0_MAT0 27[3] yes I/O I; PU PIO0_8 — General purpose digital input/output pin. I/O - MISO0 — Master In Slave Out for SPI0. O- CT16B0_MAT0 — Match output 0 for 16-bit timer 0. PIO0_9/MOSI0/ CT16B0_MAT1 28[3] yes I/O I; PU PIO0_9 — General purpose digital input/output pin. I/O - MOSI0 — Master Out Slave In for SPI0. O- CT16B0_MAT1 — Match output 1 for 16-bit timer 0. SWCLK/PIO0_10/ SCK0/ CT16B0_MAT2 29[3] yes I I; PU SWCLK — Serial wire clock. I/O - PIO0_10 — General purpose digital input/output pin. I/O - SCK0 — Serial clock for SPI0. O- CT16B0_MAT2 — Match output 2 for 16-bit timer 0. |
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