MAC7100 查看數據表（PDF） - Freescale Semiconductor

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MAC7100

MAC7100 Microcontroller Family Product Brief

Freescale Semiconductor 

Modes of Operation

• System Services Module (SSM)

— Memory sizes and status

— Device mode and security status

— eDMA status

— Reserved address space protection

— Debug status port configuration

• Development support

— Real-time instruction trace support via Nexus II interface

— Selectable Nexus port position on 208-pin MAP BGA and 144-pin LQFP packaged device

— ARM Embedded ICE debug interface

— JTAG Test Access Port (TAP) interface

— Debug mode access to CPU registers

— Real Time memory access

— Hardware Breakpoints

• Clock generation

— Selectable Standard Pierce or low-power Amplitude Loop Controlled (ALC) Pierce oscillator

— Phase-locked loop clock frequency multiplier

— Self-clocking mode available in absence of external clock

— Low power 0.5 to 16 MHz crystal oscillator reference clock

— Clock generation and monitor, reset control, and software watchdog timer (SWT)

• I/O lines with 5 V input and drive capability, 5 V ATD converter inputs

• 2.5 V logic supply, with internal 5 V to 2.5 V Regulator

• 208-pin MAP BGA, 144-pin LQFP, 112-pin LQFP, and 100-pin LQFP package options

3 Modes of Operation

3.1 Chip Configuration Modes

Devices in the MAC700 family operate in several different modes, depending on the particular application

and stage of development. There are 6 modes available for MAC7100 devices, as determined via external

input during reset as well as the security state of the on-chip program Flash memory. The selected mode

affects the memory map, debug features, and security features:

• Normal Single-Chip Mode

— All debug features available

— Boot from program Flash

• Normal Expanded Mode

— All debug features available

— Boot from off-chip device using the external bus interface

— Program and data Flash memory available

• Secured Single-Chip Mode

— No debug features available

— No external bus interface

MAC7100 Microcontroller Family Product Brief, Rev. 2

8

Preliminary

Freescale Semiconductor

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