lpc1778 NXP Semiconductors, lpc1778 Datasheet - Page 31

• Manufacturer Part Number: lpc1778
• Description: 32-bit Arm Cortex-m3 Microcontroller; Up To 512 Kb Flash And 96 Kb Sram; Usb Device/host/otg; Ethernet; Lcd; Emc
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 3.
Not all functions are available on all parts. See
LPC178x_7x
Objective data sheet
Symbol
P5[2] / T3_MAT2/
I2C0_SDA
P5[3] / U4_RXD /
I2C0_SCL
P5[4] / U0_OE /
T3_MAT3 / U4_TXD
JTAG_TDO (SWO)
JTAG_TDI
JTAG_TMS
(SWDIO)
JTAG_TRST
JTAG_TCK
(SWDCLK)
RESET
RSTOUT
RTC_ALARM
RTCX1
RTCX2
USB_D−2
Vbat
Vdd(reg)(3v3)
Pin description
117
141 G14
206 C3
2
4
6
8
10
35
29
37
34
36
52
38
26,
86,
174
…continued
L14
D3
C2
E3
D1
E2
M2
K3
N1
K2
L2
U1
M3
H4,
P11,
D11
L12
G10 98
C4
B1
C3
C2
D4
D2
J1
H2
H5
J2
J3
N2
K1
G1,
N9,
E9
81
143 I/O
1
3
4
5
7
24
20
26
23
25
37
27
18,
60,
121
All information provided in this document is subject to legal disclaimers.
Table 2
Type
I/O
O
I/O
I/O
I
I/O
O
O
O
O
I
I
I
I
I
O
O
I
O
I/O
I
Supply 3.3 V regulator supply voltage: This is the power supply for the
Rev. 00.04 — 8 July 2010
(Ethernet, USB, LCD, QEI, SD/MMC pins) and
Description
P5[2] — General purpose digital input/output pin.
T3_MAT2 — Match output for Timer 3, channel 2.
I2C0_SDA — I
I
P5[3] — General purpose digital input/output pin.
U4_RXD — Receiver input for UART 4.
I2C0_SCL — I
I
P5[4] — General purpose digital input/output pin.
U0_OE — RS-485/EIA-485 output enable signal for UART 0.
T3_MAT3 — Match output for Timer 3, channel 3.
U4_TXD — Transmitter output for UART 4.
JTAG_TDO (SWO) — Test Data Out for JTAG interface. Also
used as Serial wire trace output.
JTAG_TDI — Test Data In for JTAG interface.
JTAG_TMS (SWDIO) — Test Mode Select for JTAG interface.
Also used as Serial wire debug data input/output.
JTAG_TRST — Test Reset for JTAG interface.
JTAG_TCK (SWDCLK) — Test Clock for JTAG interface. This
clock must be slower than 1 /6 of the CPU clock (CCLK) for the
JTAG interface to operate. Also used as serial wire clock.
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. This pin includes a 20
ns input glitch filter.
Reset status output. A LOW output on this pin indicates that the
device is in the reset state, for any reason. This reflects the
RESET input pin and all internal reset sources.
RTC_ALARM — RTC controlled output. This is a 1.8 V pin. It
goes HIGH when a RTC alarm is generated.
Input to the RTC 32 kHz ultra-low power oscillator circuit.
Output from the RTC 32 kHz ultra-low power oscillator circuit.
USB_D−2 — USB port 2 bidirectional D− line.
RTC power supply: 3.3 V on this pin supplies power to the RTC.
on-chip voltage regulator that supplies internal logic.
2
2
C pad that supports I
C pad that supports I
2
2
C0 clock input/output (this pin uses a specialized
C0 data input/output (this pin uses a specialized
32-bit ARM Cortex-M3 microcontroller
2
2
C Fast Mode Plus).
C Fast Mode Plus.
LPC178x/7x
Table 7
© NXP B.V. 2010. All rights reserved.
(EMC pins).
31 of 112