LPC178X datasheet(32/120 Pages) NXP

32 / 120 page

LPC178X_7X

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Preliminary data sheet

Rev. 4 — 1 May 2012

32 of 120

NXP Semiconductors

LPC178x/7x

32-bit ARM Cortex-M3 microcontroller

P4[29]

176

B10

122

[3]

I/O

P4[29] — General purpose digital input/output pin.

EMC_BLS3 — LOW active Byte Lane select signal 3.

U3_RXD — Receiver input for UART3.

T2_MAT1 — Match output for Timer 2, channel 1.

I/O

I2C2_SCL — I2C2 clock input/output (this pin does not use a

specialized I2C pad).

LCD_VD[7] — LCD data.

LCD_VD[11] — LCD data.

LCD_VD[3] — LCD data.

P4[30]

187

130

[3]

I/O

P4[30] — General purpose digital input/output pin.

EMC_CS0 — LOW active Chip Select 0 signal.

P4[31]

193

134

[3]

I/O

P4[31] — General purpose digital input/output pin.

EMC_CS1 — LOW active Chip Select 1 signal.

P5[0] to P5[4]

I/O

Port 5: Port 5 is a 5-bit I/O port with individual direction controls

for each bit. The operation of port 5 pins depends upon the pin

function selected via the pin connect block.

P5[0]

[3]

I/O

P5[0] — General purpose digital input/output pin.

I/O

EMC_A[24] — External memory address line 24.

I/O

SSP2_MOSI — Master Out Slave In for SSP2.

T2_MAT2 — Match output for Timer 2, channel 2.

P5[1]

[3]

I/O

P5[1] — General purpose digital input/output pin.

I/O

EMC_A[25] — External memory address line 25.

I/O

SSP2_MISO — Master In Slave Out for SSP2.

T2_MAT3 — Match output for Timer 2, channel 3.

P5[2]

117

L14

L12

[11]

I/O

P5[2] — General purpose digital input/output pin.

R — Function reserved.

T3_MAT2 — Match output for Timer 3, channel 2.

R — Function reserved.

I/O

I2C0_SDA — I2C0 data input/output (this pin uses a specialized

I2C pad that supports I2C Fast Mode Plus).

Table 3.

Pin description …continued

Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC

pins).

Symbol

Description

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