参数资料
型号: LPC11C24FBD48/301,
厂商: NXP Semiconductors
文件页数: 29/52页
文件大小: 0K
描述: IC MCU 32BIT 32KB FLASH 48LQFP
产品培训模块: Code Density for LPC11xx
特色产品: 32-bit ARM Cortex-M0 Microcontrollers
标准包装: 250
系列: LPC11Cxx
核心处理器: ARM? Cortex?-M0
芯体尺寸: 32-位
速度: 50MHz
连通性: CAN,CAN,I²C,Microwire,SPI,SSI,SSP,UART/USART
外围设备: 欠压检测/复位,POR,WDT
输入/输出数: 36
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 8K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.6 V
数据转换器: A/D 8x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 48-LQFP
包装: 托盘
其它名称: 568-6644
LPC11C24FBD48/301
35
Special functions in ROM
NXP enhances the ARM Cortex-M architecture by integrating special
features into ROM. These features include programming algorithms,
peripheral drivers and stacks, power profiles, and optimized libraries.
The result is increased design flexibility, reduced code, and a simpler
development cycle.
Peripheral drivers
Certain Cortex-M devices have peripheral application programming
interfaces (APIs) embedded in ROM. Depending on the product
family, these peripheral APIs can be drivers or complete stacks.
For example, the Cortex-M3 LPC1300 and LPC1800, as well as the
Cortex-M4 LPC4300 series, implement USB drivers as well as USB-
compliant stacks that include Human Interface Device (HID), Mass
Storage, Communication Device Class (CDC), and Device Firmware
Upgrade (DFU) class. The Cortex-M devices equipped with CAN
have ROM-based peripheral APIs that include extensible code and
CANopen drivers.
5.
Special functions in ROM
MOTOR
CONTROL
MOTOR
CONTROL
Divide libraries
In the Cortex-M0 LPC1200 series, a ROM-based divide library reduces
Flash code size and produces a deterministic CPU cycle. There are four
functions in the library: unsigned division, signed division, unsigned
division with remainder, and signed division with remainder. The library
supports any width, up to 32 bits, in the numerator or the denominator.
CPU cycles for LPC1200 divide library
Function
CPU cycles
Unsigned
82
Signed (both positive)
85
Signed (one or both negative)
97
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