UM10211 - Standard ICs

NXP Semiconductors
UM10211
Chapter 9: LPC2300 Pin connect block
Table 95.
Pin Mode select register 0 (PINMODE0 - address 0xE002 C040) bit description
PINMODE0 Symbol Value Description Reset
value
1:0 P0.00MODE PORT0 pin 0 on-chip pull-up/down resistor control. 00
00 P0.00 pin has a pull-up resistor enabled.
01 Reserved. This value should not be used.
10 P0.00 pin has neither pull-up nor pull-down.
11 P0.00 has a pull-down resistor enabled.
...
31:30 P0.15MODE PORT0 pin 15 on-chip pull-up/down resistor control. 00
6.13 Pin Mode select register 1 (PINMODE1 - 0xE002 C044)
This register controls pull-up/pull-down resistor configuration for PORT0 pins 16 to 26. For
details see Section 9–5 “Pin mode select register values”.
Table 96.
Pin Mode select register 1 (PINMODE1 - address 0xE002 C044) bit description
PINMODE0 Symbol Description Reset
value
1:0 P0.16MODE PORT0 pin 16 on-chip pull-up/down resistor control. 00
...
21:20 P0.26MODE PORT0 pin 26 on-chip pull-up/down resistor control. 00
31:21 - Reserved
Remark: Pins P0.27 and P0.28 are dedicated I 2 C open drain pins without pull-up/down.
Pins P0.29, P0.30, P0.31 are USB specific pins without configurable pull-up or pull-down
resistors.
6.14 Pin Mode select register 2 (PINMODE2 - 0xE002 C048)
This register controls pull-up/pull-down resistor configuration for PORT1 pins 0 to 15. For
details see Section 9–5 “Pin mode select register values”.
Table 97.
Pin Mode select register 2 (PINMODE2 - address 0xE002 C048) bit description
PINMODE0 Symbol Description Reset
value
1:0 P1.00MODE PORT1 pin 0 on-chip pull-up/down resistor control. 00
...
31:30 P1.15MODE PORT1 pin 15 on-chip pull-up/down resistor control. 00
6.15 Pin Mode select register 3 (PINMODE3 - 0xE002 C04C)
This register controls pull-up/pull-down resistor configuration for PORT1 pins 16 to 31. For
details see Section 9–5 “Pin mode select register values”.
UM10211_1
© NXP B.V. 2007. All rights reserved.
User manual Rev. 01 — 27 March 2007 114 of 613