參數(shù)資料
型號: MC9SDG256BVFUR2
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 14 MM, 2.20 MM HEIGHT, 0.65 MM PITCH, PLASTIC, QFP-80
文件頁數(shù): 65/155頁
文件大?。?/td> 2684K
代理商: MC9SDG256BVFUR2
MC9S12DP256B Device User Guide — V02.14
17
Section 1 Introduction
1.1 Overview
The MC9S12DP256 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip
peripherals including a 16-bit central processing unit (HCS12 CPU), 256K bytes of Flash EEPROM, 12K
bytes of RAM, 4K bytes of EEPROM, two asynchronous serial communications interfaces (SCI), three
serial peripheral interfaces (SPI), an 8-channel IC/OC enhanced capture timer, two 8-channel, 10-bit
analog-to-digital converters (ADC), an 8-channel pulse-width modulator (PWM), a digital Byte Data Link
Controller (BDLC), 29 discrete digital I/O channels (Port A, Port B, Port K and Port E), 20 discrete digital
I/O lines with interrupt and wakeup capability, five CAN 2.0 A, B software compatible modules
(MSCAN12), and an Inter-IC Bus. The MC9S12DP256 has full 16-bit data paths throughout. However,
the external bus can operate in an 8-bit narrow mode so single 8-bit wide memory can be interfaced for
lower cost systems. The inclusion of a PLL circuit allows power consumption and performance to be
adjusted to suit operational requirements.
1.2 Features
HCS12 Core
16-bit HCS12 CPU
i. Upward compatible with M68HC11 instruction set
ii. Interrupt stacking and programmer’s model identical to M68HC11
iii. Instruction queue
iv. Enhanced indexed addressing
MEBI (Multiplexed External Bus Interface)
MMC (Module Mapping Control)
INT (Interrupt control)
BKP (Breakpoints)
BDM (Background Debug Mode)
CRG (low current oscillator, PLL, reset, clocks, COP watchdog, real time interrupt, clock monitor)
8-bit and 4-bit ports with interrupt functionality
Digital filtering
Programmable rising or falling edge trigger
Memory
256K Flash EEPROM
4K byte EEPROM
12K byte RAM
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