How many I2C in LPC2148?
LPC2148 supports two fast I2C-buses (I2C0 & I2C1). I2C bus interface that may be configured as Master, Slave or Master/Slave. Supports programmable clock to allow adjustment of multiple data speed: standard (100 kbps), fast (400 kbps) and high speed (3.4 Mbps).
What is I2C in LPC2148?
I2C (Inter Integrated Circuit) is serial bus interface connection protocol first invented by Philips Semiconductor (Now NXP Semiconductors). It is also called as TWI (two wire interface) since it uses only two wires for communication. I2C uses handshaking mechanism for communication.
How many buses in LPC2148?
In LPC2148 three types of busses are used to connect the core with other peripherals on chip.
What is LPC2148?
The NXP (founded by Philips) LPC2148 is an ARM7TDMI-S based high-performance 32-bit RISC Microcontroller with Thumb extensions 512KB on-chip Flash ROM with In-System Programming (ISP) and In-Application Programming (IAP), 32KB RAM, Vectored Interrupt Controller, Two 10bit ADCs with 14 channels, USB 2.0 Full Speed …
What size is LPC2148?
The LPC2148 is a 16 bit or 32 bit ARM7 family based microcontroller and available in a small LQFP64 package. ISP (in system programming) or IAP (in application programming) using on-chip boot loader software.
What are the three different buses available in LPC2148?
Types of Buses•In LPC2148 three types of busses are used to connect thecore with other peripherals on chip. 1. Local Busto connect the onchip memory controllers and fastGPIO’s2. Advance High Performance Bus (AHB)for interrupt controller3.
How many pins is LPC2148?
LPC2148 has two 32-bit General Purpose I/O ports. Out of these 32 pins, 28 pins can be configured as either general purpose input or output. 1 of these 32 pins (P0.
What is the full form of SPI?
In a computer, a serial peripheral interface (SPI) is an interface that enables the serial (one bit at a time) exchange of data between two devices, one called a master and the other called a slave . An SPI operates in full duplex mode.
What is difference between I2C and SPI?
I2C is a two wire protocol and SPI is a four wire protocol. I2C supports clock stretching and SPI does not have clock stretching. I2C is slower than SPI. I2C has extra overhead start and stop bits and SPI does not have any start and stop bits.
How many ports are available in LPC2148?
two IO ports
LPC2148 has two IO ports namely PORT0 (P0) and PORT1 (P1). These two IO ports are of 32-bit wide and are provided by the 64 pins of the microcontroller.
How many ports are there in LPC2148?
How many registers are there in LPC2148?
Pin Function Select Registers are 32-bit registers. These registers are used to select or configure specific pin functionality. There are 3 Pin Function Select Registers in LPC2148: 1.
Which is better I2C or SPI?
Overall, SPI is better for high speed and low power applications, while I2C is better suited for communication with a large number of peripherals, as well as in situations involving dynamic changing of the primary device role among peripherals on the I2C bus.
Which one is faster I2C or SPI?
I2C is a two wire protocol and SPI is a four wire protocol. I2C supports clock stretching and SPI does not have clock stretching. I2C is slower than SPI.
Is I2C faster than SPI?