OM13008,598 NXP Semiconductors, OM13008,598 Datasheet - Page 66

• Manufacturer Part Number: OM13008,598
• Description: BOARD LPC XPRESSO LPC122X
• Manufacturer: NXP Semiconductors
• Series: LPCXpressor

Specifications of OM13008,598

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-6642; OM13008

NXP Semiconductors
UM10441
User manual
6.4.4 PIO0_21 register
Table 64.
Table 65.
7
8
Bit
10
12:11
15:13
31:16
Bit
2:0
3
4
5
6
Symbol
OD
S_MODE
CLK_DIV
-
Symbol
FUNC
-
MODE
-
INV
ADMODE
-
PIO0_20 register (PIO0_20, address 0x4004 400C) bit description
PIO0_21 register (PIO0_21, address 0x4004 4010) bit description
All information provided in this document is subject to legal disclaimers.
Value
0
1
0x0
0x1
0x2
0x3
0x0
0x1
0x2
0x3
0x4
0x5
0x6
-
Value
0x0
0x1
0x2
0x3
0x4
0
1
0
1
0
1
Rev. 1.1 — 10 March 2011
Description
Open-drain mode.
Open-drain mode disabled.
Open-drain mode enabled.
Sample mode
Bypass input filter.
Input pulses shorter than one filter clock are rejected.
Input pulses shorter than two filter clocks are rejected.
Input pulses shorter than three filter clocks are rejected.
Select peripheral clock divider for input filter sampling clock.
IOCONFIGCLKDIV0.
IOCONFIGCLKDIV1.
IOCONFIGCLKDIV2.
IOCONFIGCLKDIV3.
IOCONFIGCLKDIV4.
IOCONFIGCLKDIV5.
IOCONFIGCLKDIV6.
Reserved.
Description
Selects pin function.
Selects function PIO0_21.
Reserved. Do not use.
Select function ACMP0_I2.
Select function CT32B0_CAP3.
Select function CT32B0_MAT3.
Reserved
Selects function mode (on-chip pull-up resistor control).
Inactive (pull-up resistor not enabled).
Pull-up resistor enabled.
Reserved.
Invert input
Input not inverted.
Input inverted.
Analog/Digital mode
Analog mode enabled.
Digital mode enabled.
Reserved.
Chapter 6: LPC122x I/O configuration (IOCONFIG)
UM10441
© NXP B.V. 2011. All rights reserved.
…continued
66 of 442
Reset
value
0
00
000
0
Reset
value
000
0
1
0
0
1
0