UM10360 Datasheet, PDF (114/835 Pages) NXP Semiconductors – LPC17xx User manual

NXP Semiconductors
UM10360
Chapter 8: LPC17xx Pin connect block
Table 93. Open Drain Pin Mode select register 0 (PINMODE_OD0 - address 0x4002 C068) bit
description
PINMODE Symbol
_OD0
Value Description
Reset
value
10
P0.10OD^[3]
Port 0 pin 10 open drain mode control, see P0.00OD 0
11
P0.11OD^[3]
Port 0 pin 11 open drain mode control, see P0.00OD 0
14:12
-
Reserved.
NA
15
P0.15OD
Port 0 pin 15 open drain mode control, see P0.00OD 0
16
P0.16OD
Port 0 pin 16 open drain mode control, see P0.00OD 0
17
P0.17OD
Port 0 pin 17 open drain mode control, see P0.00OD 0
18
P0.18OD
Port 0 pin 18 open drain mode control, see P0.00OD 0
19
P0.19OD^[3]
Port 0 pin 19 open drain mode control, see P0.00OD 0
20
P0.20OD^[3]
Port 0 pin 20open drain mode control, see P0.00OD 0
21
P0.21OD
Port 0 pin 21 open drain mode control, see P0.00OD 0
22
P0.22OD
Port 0 pin 22 open drain mode control, see P0.00OD 0
23
P0.23OD
Port 0 pin 23 open drain mode control, see P0.00OD 0
24
P0.24OD
Port 0 pin 24open drain mode control, see P0.00OD 0
25
P0.25OD
Port 0 pin 25 open drain mode control, see P0.00OD 0
26
P0.26OD
Port 0 pin 26 open drain mode control, see P0.00OD 0
28:27
- ^[2]
Reserved.
NA
29
P0.29OD
Port 0 pin 29 open drain mode control, see P0.00OD 0
30
P0.30OD
Port 0 pin 30 open drain mode control, see P0.00OD 0
31
-
Reserved.
NA
[1] Not available on 80-pin package.
[2] Port 0 pins 27 and 28 should be set up using the I2CPADCFG register if they are used for an I²C-bus. Bits
27 and 28 of PINMODE_OD0 do not have any affect on these pins, they are special open drain I²C-bus
compatible pins.
[3] Port 0 bits 1:0, 11:10, and 20:19 may potentially be used for I²C-buses using standard port pins. If so, they
should be configured for open drain mode via the related bits in PINMODE_OD0.
5.17 Open Drain Pin Mode select register 1 (PINMODE_OD1 -
0x4002 C06C)
This register controls the open drain mode for Port 1 pins. For details see Section 8–4 “Pin
mode select register values”.
Table 94. Open Drain Pin Mode select register 1 (PINMODE_OD1 - address 0x4002 C06C) bit
description
PINMODE Symbol
_OD1
Value Description
Reset
value
0
P1.00OD
Port 1 pin 0 open drain mode control.
0
0
P1.0 pin is in the normal (not open drain) mode.
1
P1.0 pin is in the open drain mode.
1
P1.01OD
Port 1 pin 1 open drain mode control, see P1.00OD
0
3:2
-
Reserved.
NA
4
P1.04OD
Port 1 pin 4 open drain mode control, see P1.00OD
0
UM10360_1
User manual
Rev. 01 — 4 January 2010
© NXP B.V. 2010. All rights reserved.
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