LPC2468FET208,551 NXP Semiconductors, LPC2468FET208,551 Datasheet - Page 46

• Manufacturer Part Number: LPC2468FET208,551
• Description: IC ARM7 MCU FLASH 512K 208TFBGA
• Manufacturer: NXP Semiconductors
• Series: LPC2400r

Specifications of LPC2468FET208,551

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K x 8)
• Package / Case: 208-TFBGA
• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 72MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, Microwire, MMC, SPI, SSI, SSP, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 160
• Ram Size: 98K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: LPC24
• Core: ARM7TDMI-S
• Data Bus Width: 16 bit, 32 bit
• Data Ram Size: 98 KB
• Interface Type: CAN/I2S/ISP/SSP/UART/USB
• Maximum Clock Frequency: 72 MHz
• Number Of Programmable I/os: 160
• Number Of Timers: 6
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2, IRD-LPC2468-DEV, SAB-TFBGA208, KSK-LPC2468-PL
• Development Tools By Supplier: OM10100
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• On-chip Dac: 1-ch x 10-bit
• Package: 208TFBGA
• Device Core: ARM7TDMI-S
• Family Name: LPC2000
• Maximum Speed: 72 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 622-1025 - KIT DEV IND REF DESIGN LPC2468622-1024 - BOARD SCKT ADAPTER FOR TFBGA208568-4358 - DISPLAY QVGA TFT FOR OM10100568-4309 - BOARD EXTENSION LPCSTICK568-4308 - EVAL LPC-STICK WITH LPC2468MCB2400U - BOARD EVAL MCB2400 + ULINK2MCB2400 - BOARD EVAL FOR NXP LPC246X SER622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4262; 935283234551; LPC2468FET208-S

NXP Semiconductors
UM10237_4
User manual
3.1.1 Clock Source Select register (CLKSRCSEL - 0xE01F C10C)
3.1 Clock source selection multiplexer
3.2 PLL (Phase Locked Loop)
Table 41.
[1]
Several clock sources may be chosen to drive the PLL and ultimately the CPU and
on-chip peripheral devices. The clock sources available are the main oscillator, the RTC
oscillator, and the Internal RC (IRC) oscillator.
The clock source selection can only be changed safely when the PLL is not connected.
For a detailed description of how to change the clock source in a system using the PLL
see
Note the following restrictions regarding the choice of clock sources:
The PCLKSRCSEL register contains the bits that select the clock source for the PLL.
Table 42.
The PLL accepts an input clock frequency in the range of 32 kHz to 24 MHz. The input
frequency is multiplied up to a high frequency, then divided down to provide the actual
clock used by the CPU and the USB block.
Name
PCON
INTWAKE
PCONP
Bit Symbol
1:0 CLKSRC
7:2 -
•
•
Reset Value reflects the data stored in used bits only. It does not include reserved bits content.
The IRC oscillator cannot be used as clock source for the USB block.
The IRC oscillator cannot be used as clock source for the CAN controllers if the CAN
baud rate is larger than 100 kbit/s.
Section 4–3.2.14 “PLL setup
Summary of system control registers
Clock Source Select register (CLKSRCSEL - address 0xE01F C10C) bit
description
Description
Power Control Register
Interrupt Wakeup Register
Power Control for Peripherals Register
Value Description
00
01
10
11
Warning: Improper setting of this value, or an incorrect sequence of
changing this value may result in incorrect operation of the device.
0
Rev. 04 — 26 August 2009
Selects the clock source for the PLL as follows:
Selects the Internal RC oscillator as the PLL clock source
(default).
Selects the main oscillator as the PLL clock source.
Selects the RTC oscillator as the PLL clock source.
Reserved, user software should not write ones to reserved bits.
The value read from a reserved bit is not defined.
Unused, always 0.
sequence”.
Chapter 4: LPC24XX Clocking and power control
R/W
R/W
Access
R/W
Reset
value
0
0
0x03BE
[1]
UM10237
© NXP B.V. 2009. All rights reserved.
Address
0xE01F C0C0
0xE01F C144
0xE01F C0C4
46 of 792
Reset
value
0
0