Microcontrollers User manual

UM10237_2 © NXP B.V. 2008. All rights reserved.
User manual Rev. 02 — 19 December 2008 171 of 792
NXP Semiconductors
UM10237
Chapter 8: LPC24XX Pin configuration
P4[3]/A3 97
[1]
U16
[1]
I/O P4[3] — General purpose digital input/output pin.
I/O A3 — External memory address line 3.
P4[4]/A4 103
[1]
R15
[1]
I/O P4[4] — General purpose digital input/output pin.
I/O A4 — External memory address line 4.
P4[5]/A5 107
[1]
R16
[1]
I/O P4[5] — General purpose digital input/output pin.
I/O A5 — External memory address line 5.
P4[6]/A6 113
[1]
M14
[1]
I/O P4[6] — General purpose digital input/output pin.
I/O A6 — External memory address line 6.
P4[7]/A7 121
[1]
L16
[1]
I/O P4[7] — General purpose digital input/output pin.
I/O A7 — External memory address line 7.
P4[8]/A8 127
[1]
J17
[1]
I/O P4[8] — General purpose digital input/output pin.
I/O A8 — External memory address line 8.
P4[9]/A9 131
[1]
H17
[1]
I/O P4[9] — General purpose digital input/output pin.
I/O A9 — External memory address line 9.
P4[10]/A10 135
[1]
G17
[1]
I/O P4[10] — General purpose digital input/output pin.
I/O A10 — External memory address line 10.
P4[11]/A11 145
[1]
F14
[1]
I/O P4[11] — General purpose digital input/output pin.
I/O A11 — External memory address line 11.
P4[12]/A12 149
[1]
C16
[1]
I/O P4[12] — General purpose digital input/output pin.
I/O A12 — External memory address line 12.
P4[13]/A13 155
[1]
B16
[1]
I/O P4[13] — General purpose digital input/output pin.
I/O A13 — External memory address line 13.
P4[14]/A14 159
[1]
B15
[1]
I/O P4[14] — General purpose digital input/output pin.
I/O A14 — External memory address line 14.
P4[15]/A15 173
[1]
A11
[1]
I/O P4[15] — General purpose digital input/output pin.
I/O A15 — External memory address line 15.
P4[16]/A16 101
[1]
U17
[1]
I/O P4[16] — General purpose digital input/output pin.
I/O A16 — External memory address line 16.
P4[17]/A17 104
[1]
P14
[1]
I/O P4[17] — General purpose digital input/output pin.
I/O A17 — External memory address line 17.
P4[18]/A18 105
[1]
P15
[1]
I/O P4[18] — General purpose digital input/output pin.
I/O A18 — External memory address line 18.
P4[19]/A19 111
[1]
P16
[1]
I/O P4[19] — General purpose digital input/output pin.
I/O A19 — External memory address line 19.
P4[20]/A20/
SDA2/SCK1
109
[1]
R17
[1]
I/O P4[20] — General purpose digital input/output pin.
I/O A20 — External memory address line 20.
I/O SDA2 — I
2
C2 data input/output (this is not an open-drain pin).
I/O SCK1 — Serial Clock for SSP1.
Table 124. LPC2470/78 pin description
…continued
Symbol Pin Ball Type Description