LPC2377 datasheet(11/55 Pages) NXP

11 / 55 page

LPC2377_78_4

Product data sheet

Rev. 04 — 19 November 2008

11 of 55

NXP Semiconductors

LPC2377/78

Single-chip 16-bit/32-bit microcontroller

P2[7]/RD2/

RTS1/

TRACEPKT2

95[1]

I/O

P2[7] — General purpose digital input/output pin.

RD2 — CAN2 receiver input. (LPC2378 only)

RTS1 — Request to Send output for UART1.

TRACEPKT2 — Trace Packet, bit 2.

P2[8]/TD2/

TXD2/

TRACEPKT3

93[1]

I/O

P2[8] — General purpose digital input/output pin.

TD2 — CAN2 transmitter output. (LPC2378 only)

TXD2 — Transmitter output for UART2.

TRACEPKT3 — Trace Packet, bit 3.

P2[9]/

USB_CONNECT1/

RXD2/

EXTIN0

92[1]

I/O

P2[9] — General purpose digital input/output pin.

USB_CONNECT1 — USB1 Soft Connect control. Signal used to switch an external

1.5 k

Ω resistor under the software control. Used with the SoftConnect USB feature.

(LPC2378 only)

RXD2 — Receiver input for UART2.

EXTIN0 — External Trigger Input.

P2[10]/EINT0

76[6]

I/O

P2[10] — General purpose digital input/output pin.

Note: LOW on this pin while RESET is LOW forces on-chip boot-loader to take over

control of the part after a reset.

EINT0 — External interrupt 0 input.

P2[11]/EINT1/

MCIDAT1/

I2STX_CLK

75[6]

I/O

P2[11] — General purpose digital input/output pin.

EINT1 — External interrupt 1 input.

MCIDAT1 — Data line for SD/MMC interface.

I/O

I2STX_CLK — Transmit Clock. It is driven by the master and received by the slave.

Corresponds to the signal SCK in the

I2S-bus speciﬁcation.

P2[12]/EINT2/

MCIDAT2/

I2STX_WS

73[6]

I/O

P2[12] — General purpose digital input/output pin.

EINT2 — External interrupt 2 input.

MCIDAT2 — Data line for SD/MMC interface.

I/O

I2STX_WS — Transmit Word Select. It is driven by the master and received by the

slave. Corresponds to the signal WS in the

I2S-bus speciﬁcation.

P2[13]/EINT3/

MCIDAT3/

I2STX_SDA

71[6]

I/O

P2[13] — General purpose digital input/output pin.

EINT3 — External interrupt 3 input.

MCIDAT3 — Data line for SD/MMC interface.

I/O

I2STX_SDA — Transmit data. It is driven by the transmitter and read by the receiver.

Corresponds to the signal SD in the

I2S-bus speciﬁcation.

P3[0] to P3[31]

I/O

Port 3: Port 3 is a 32 bit I/O port with individual direction controls for each bit. The

operation of port 3 pins depends upon the pin function selected via the pin connect

block. Pins 8 through 22, and 27 through 31 of this port are not available.

P3[0]/D0

137[1]

I/O

P3[0] — General purpose digital input/output pin.

I/O

D0 — External memory data line 0.

P3[1]/D1

140[1]

I/O

P3[1] — General purpose digital input/output pin.

I/O

D1 — External memory data line 1.

P3[2]/D2

144[1]

I/O

P3[2] — General purpose digital input/output pin.

I/O

D2 — External memory data line 2.

Table 3.

Pin description …continued

Symbol

Type

Description

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