NXP Semiconductors
LPC2926/2927/2929
ARM9 microcontroller with CAN, LIN, and USB
NXP B.V. 2010.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 28 September 2010
Document identifier: LPC2926_27_29
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
6.15.6.2 Clock description . . . . . . . . . . . . . . . . . . . . . . 47
6.15.7
Quadrature Encoder Interface (QEI) . . . . . . . 47
6.15.7.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . 48
6.15.7.2 Clock description . . . . . . . . . . . . . . . . . . . . . . 48
6.16
Power, Clock and Reset Control Subsystem
(PCRSS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.16.1
Clock description . . . . . . . . . . . . . . . . . . . . . . 49
6.16.2
Clock Generation Unit (CGU0). . . . . . . . . . . . 50
6.16.2.1 Functional description. . . . . . . . . . . . . . . . . . . 50
6.16.2.2 PLL functional description . . . . . . . . . . . . . . . 53
6.16.2.3 Pin description . . . . . . . . . . . . . . . . . . . . . . . . 54
6.16.3
Clock generation for USB (CGU1) . . . . . . . . . 55
6.16.3.1 Pin description . . . . . . . . . . . . . . . . . . . . . . . . 55
6.16.4
Reset Generation Unit (RGU). . . . . . . . . . . . . 55
6.16.4.1 Functional description. . . . . . . . . . . . . . . . . . . 56
6.16.4.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . 57
6.16.5
Power Management Unit (PMU). . . . . . . . . . . 57
6.16.5.1 Functional description. . . . . . . . . . . . . . . . . . . 57
6.17
Vectored Interrupt Controller (VIC). . . . . . . . . 59
6.17.1
Functional description. . . . . . . . . . . . . . . . . . . 60
6.17.2
Clock description . . . . . . . . . . . . . . . . . . . . . . 60
7
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 61
8
Static characteristics. . . . . . . . . . . . . . . . . . . . 63
8.1
Power consumption . . . . . . . . . . . . . . . . . . . . 68
8.2
Electrical pin characteristics . . . . . . . . . . . . . . 69
9
Dynamic characteristics . . . . . . . . . . . . . . . . . 72
9.1
Dynamic characteristics: I/O and
CLK_OUT pins, internal clock, oscillators,
PLL, and CAN. . . . . . . . . . . . . . . . . . . . . . . . . 72
9.2
USB interface . . . . . . . . . . . . . . . . . . . . . . . . . 74
9.3
Dynamic characteristics: I
2
C-bus interface. . . 75
9.4
Dynamic characteristics: SPI . . . . . . . . . . . . . 76
9.5
Dynamic characteristics: flash memory and
EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
9.6
Dynamic characteristics: external static
memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
9.7
Dynamic characteristics: ADC . . . . . . . . . . . . 80
10
Application information. . . . . . . . . . . . . . . . . . 80
10.1
Operating frequency selection . . . . . . . . . . . . 80
10.2
Suggested USB interface solutions . . . . . . . . 82
10.3
SPI signal forms . . . . . . . . . . . . . . . . . . . . . . . 84
10.4
XIN_OSC input. . . . . . . . . . . . . . . . . . . . . . . . 85
10.5
XIN_OSC Printed Circuit Board
(PCB) layout guidelines . . . . . . . . . . . . . . . . . 85
11
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 86
12
Soldering of SMD packages . . . . . . . . . . . . . . 87
12.1
Introduction to soldering . . . . . . . . . . . . . . . . . 87
12.2
Wave and reflow soldering . . . . . . . . . . . . . . . 87
12.3
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 87
12.4
13
14
15
16
16.1
16.2
16.3
16.4
17
18
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 88
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 90
References. . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Revision history . . . . . . . . . . . . . . . . . . . . . . . 91
Legal information . . . . . . . . . . . . . . . . . . . . . . 92
Data sheet status. . . . . . . . . . . . . . . . . . . . . . 92
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Contact information . . . . . . . . . . . . . . . . . . . . 93
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94