LPC2157_2158 NXP Semiconductors, LPC2157_2158 Datasheet - Page 8

• Manufacturer Part Number: LPC2157_2158
• Description: The LPC2157/2158 is a multi-chip module consisting of a LPC2138/2148 single-chipmicrocontroller combined with a PCF8576D Universal LCD driver in a low-cost 100-pinpackage
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 2.
LPC2157_2158_2
Product data sheet
Symbol
P0[27]/AD0[0]/
CAP0[1]/MAT0[1]
P0[28]/AD0[1]/
CAP0[2]/MAT0[2]
P0[29]/AD0[2]/
CAP0[3]MAT0[3]
P0[30]/AD0[3]/
EINT3/CAP0[0]
P0[31]
P1[0] to P1[31]
P1[16]
P1[17]
P1[25]/EXTIN0
P1[26]/RTCK
P1[27]/TDO
P1[28]/TDI
P1[29]/TCK
P1[30]/TMS
P1[31]/TRST
Pin description LPC2157
Pin
99
1
2
3
5
4
100
16
12
90
86
82
78
8
[4]
[4]
[4]
[6]
[6]
[6]
[7]
[6]
[6]
[6]
[6]
[6]
[6]
[6]
Type
I/O
I
I
O
I/O
I
I
O
I/O
I
I
O
I/O
I
I
I
O
I/O
I/O
I/O
I/O
I
I/O
I/O
I/O
O
I/O
I
I/O
I
I/O
I
I/O
I
…continued
Description
P0[27] — General purpose input/output digital pin (GPIO).
AD0[0] — ADC 0, input 0. This analog input is always connected to its pin.
CAP0[1] — Capture input for Timer 0, channel 1.
MAT0[1] — Match output for Timer 0, channel 1.
P0[28] — General purpose input/output digital pin (GPIO).
AD0[1] — ADC 0, input 1.
CAP0[2] — Capture input for Timer 0, channel 2.
MAT0[2] — Match output for Timer 0, channel 2.
P0[29] — General purpose input/output digital pin (GPIO).
AD0[2] — ADC 0, input 2.
CAP0[3] — Capture input for Timer 0, channel 3.
MAT0[3] — Match output for Timer 0, channel 3.
P0[30] — General purpose input/output digital pin (GPIO).
AD0[3] — ADC 0, input 3.
EINT3 — External interrupt 3 input.
CAP0[0] — Capture input for Timer 0, channel 0.
P0[31] — General purpose output only digital pin.
Port 1: Port 1 is a 32-bit bidirectional I/O port with individual direction controls
for each bit. The operation of port 1 pins depends upon the pin function
selected via the pin connect block. Pins 0 through 15 and 18 through 24 of
port 1 are not available.
P1[16] — General purpose input/output digital pin (GPIO).
P1[17] — General purpose input/output digital pin (GPIO).
P1[25] — General purpose input/output digital pin (GPIO).
EXTIN0 — External Trigger Input. Standard I/O with internal pull-up.
P1[26] — General purpose input/output digital pin (GPIO).
RTCK — Returned Test Clock output. Extra signal added to the JTAG port.
Assists debugger synchronization when processor frequency varies.
Bidirectional pin with internal pull-up.
Note: LOW on RTCK while RESET is LOW enables pins P1[31:26] to operate
as Debug port after reset.
P1[27] — General purpose input/output digital pin (GPIO).
TDO — Test Data out for JTAG interface.
P1[28] — General purpose input/output digital pin (GPIO).
TDI — Test Data in for JTAG interface.
P1[29] — General purpose input/output digital pin (GPIO).
TCK — Test Clock for JTAG interface. This clock must be slower than
CPU clock (CCLK) for the JTAG interface to operate.
P1[30] — General purpose input/output digital pin (GPIO).
TMS — Test Mode Select for JTAG interface.
P1[31] — General purpose input/output digital pin (GPIO).
TRST — Test Reset for JTAG interface.
Rev. 02 — 9 February 2009
Single-chip 16-bit/32-bit microcontrollers
LPC2157/2158
© NXP B.V. 2009. All rights reserved.
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