Datasheet

LPC1315_16_17_45_46_47 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 3 — 20 September 2012 18 of 77
NXP Semiconductors
LPC1315/16/17/45/46/47
32-bit ARM Cortex-M3 microcontroller
Table 4. Pin description (LPC1345/46/47 - with USB)
Symbol
LQFP64
LQFP48
HVQFN33
Reset state
[1]
Type
Description
RESET
/PIO0_0 4 3 2
[2]
I; PU I RESETExternal 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. This pin also serves as the debug select input.
LOW level selects the JTAG boundary scan. HIGH level
selects the ARM SWD debug mode.
-I/OPIO0_0 — General purpose digital input/output pin.
PIO0_1/CLKOUT/
CT32B0_MAT2/
USB_FTOGGLE
543
[3]
I; PU I/O PIO0_1 — General purpose digital input/output pin. A
LOW level on this pin during reset starts the ISP
command handler or the USB device enumeration.
-OCLKOUT — Clockout pin.
-OCT32B0_MAT2 — Match output 2 for 32-bit timer 0.
-OUSB_FTOGGLE — USB 1 ms Start-of-Frame signal.
PIO0_2/SSEL0/
CT16B0_CAP0
13 10 8
[3]
I; PU I/O PIO0_2 — General purpose digital input/output pin.
I/O SSEL0 — Slave select for SSP0.
I CT16B0_CAP0 — Capture input 0 for 16-bit timer 0.
PIO0_3/USB_VBUS 19 14 9
[3]
I; PU I/O PIO0_3 — General purpose digital input/output pin. A
LOW level on this pin during reset starts the ISP
command handler. A HIGH level during reset starts the
USB device enumeration.
-IUSB_VBUS — Monitors the presence of USB bus power.
PIO0_4/SCL 20 15 10
[4]
IA I/O PIO0_4 — General purpose digital input/output pin
(open-drain).
-I/OSCL — I
2
C-bus clock input/output (open-drain).
High-current sink only if I
2
C Fast-mode Plus is selected in
the I/O configuration register.
PIO0_5/SDA 21 16 11
[4]
IA I/O PIO0_5 — General purpose digital input/output pin
(open-drain).
-I/OSDA — I
2
C-bus data input/output (open-drain).
High-current sink only if I
2
C Fast-mode Plus is selected in
the I/O configuration register.
PIO0_6/USB_CONNECT
/
SCK0
29 22 15
[3]
I; PU I/O PIO0_6 — General purpose digital input/output pin.
-OUSB_CONNECT
Signal used to switch an external
1.5 k resistor under software control. Used with the
SoftConnect USB feature.
-I/OSCK0 — Serial clock for SSP0.
PIO0_7/CTS
30 23 16
[5]
I; PU I/O PIO0_7 — General purpose digital input/output pin
(high-current output driver).
-ICTS
Clear To Send input for USART.
PIO0_8/MISO0/
CT16B0_MAT0
36 27 17
[3]
I; PU I/O PIO0_8 — General purpose digital input/output pin.
-I/OMISO0 — Master In Slave Out for SSP0.
-OCT16B0_MAT0 — Match output 0 for 16-bit timer 0.