LPC2458 NXP Semiconductors, LPC2458 Datasheet - Page 16

• Manufacturer Part Number: LPC2458
• Description: NXP Semiconductors designed the LPC2458 microcontroller around a 16-bit/32-bitARM7TDMI-S CPU core with real-time debug interfaces that include both JTAG andembedded trace
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 4.
LPC2458
Product data sheet
Symbol
P2[20]/DYCS0
P2[21]/DYCS1
P2[24]/
CKEOUT0
P2[25]/
CKEOUT1
P2[28]/
DQMOUT0
P2[29]/
DQMOUT1
P3[0] to P3[31]
P3[0]/D0
P3[1]/D1
P3[2]/D2
P3[3]/D3
P3[4]/D4
P3[5]/D5
P3[6]/D6
P3[7]/D7
P3[8]/D8
P3[9]/D9
P3[10]/D10
P3[11]/D11
Pin description
Ball
P6
N8
P1
P2
M2
L1
D6
E6
A2
G5
D3
E3
F4
G3
A6
A4
B3
B2
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
…continued
Type
I/O
O
I/O
O
I/O
O
I/O
O
I/O
O
I/O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Description
P2[20] — General purpose digital input/output pin.
DYCS0 — SDRAM chip select 0.
P2[21] — General purpose digital input/output pin.
DYCS1 — SDRAM chip select 1.
P2[24] — General purpose digital input/output pin.
CKEOUT0 — SDRAM clock enable 0.
P2[25] — General purpose digital input/output pin.
CKEOUT1 — SDRAM clock enable 1.
P2[28] — General purpose digital input/output pin.
DQMOUT0 — Data mask 0 used with SDRAM and static devices.
P2[29] — General purpose digital input/output pin.
DQMOUT1 — Data mask 1 used with SDRAM and static devices.
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 P3[16:22] and P3[27:31] are not available.
P3[0] — General purpose digital input/output pin.
D0 — External memory data line 0.
P3[1] — General purpose digital input/output pin.
D1 — External memory data line 1.
P3[2] — General purpose digital input/output pin.
D2 — External memory data line 2.
P3[3] — General purpose digital input/output pin.
D3 — External memory data line 3.
P3[4] — General purpose digital input/output pin.
D4 — External memory data line 4.
P3[5] — General purpose digital input/output pin.
D5 — External memory data line 5.
P3[6] — General purpose digital input/output pin.
D6 — External memory data line 6.
P3[7] — General purpose digital input/output pin.
D7 — External memory data line 7.
P3[8] — General purpose digital input/output pin.
D8 — External memory data line 8.
P3[9] — General purpose digital input/output pin.
D9 — External memory data line 9.
P3[10] — General purpose digital input/output pin.
D10 — External memory data line 10.
P3[11] — General purpose digital input/output pin.
D11 — External memory data line 11.
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 1 September 2011
Single-chip 16-bit/32-bit micro
LPC2458
© NXP B.V. 2011. All rights reserved.
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