LPC2923FBD100,551 NXP Semiconductors, LPC2923FBD100,551 Datasheet - Page 40

• Manufacturer Part Number: LPC2923FBD100,551
• Description: IC ARM9 MCU FLASH 256KB 100-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC2900r

Specifications of LPC2923FBD100,551

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 125MHz
• Connectivity: CAN, I²C, LIN, SPI, UART/USART, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 60
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 16K x 8
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.71 V ~ 3.6 V
• Data Converters: A/D 16x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Processor Series: LPC29
• Core: ARM968E-S
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935287115551

NXP Semiconductors
LPC2921_23_25_3
Product data sheet
6.14.7.1 Pin description
6.14.7.2 Clock description
6.15 Power, Clock, and Reset control SubSystem (PCRSS)
The QEI module in the MSCSS has the following pins. These are combined with other
functions on the port pins of the LPC2921/2923/2925.
Table 23.
Remark: The index function for the QEI is not pinned out on the LPC2921/2923/2925.
The QEI module is clocked by CLK_MSCSS_QEI, see
this clock is identical to CLK_MSCSS_APB since they are derived from the same base
clock BASE_MSCSS_CLK.
If the QEI is not used its CLK_MSCSS_QEI branch clock can be switched off.
The Power, Clock, and Reset control SubSystem (PCRSS) in the LPC2921/2923/2925
includes a Clock Generator Unit (CGU), a Reset Generator Unit (RGU) and a Power
Management Unit (PMU).
Figure 8
communication with the AHB system bus.
Symbol
QEI0 PHA
QEI0 PHB
provides an overview of the PCRSS. An AHB-to-DTL bridge controls the
QEI pins
All information provided in this document is subject to legal disclaimers.
Pin name
PHA0
PHB0
Rev. 03 — 14 April 2010
Direction
IN
IN
ARM9 microcontroller with CAN, LIN, and USB
Description
Sensor signal. Corresponds to PHA in
quadrature mode and to direction in
clock/direction mode.
Sensor signal. Corresponds to PHB in
quadrature mode and to clock signal in
clock/direction mode.
LPC2921/2923/2925
Table 23
Section
6.7.2. The frequency of
shows the QEI pins.
© NXP B.V. 2010. All rights reserved.
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