MAC7200 datasheet(361/976 Pages) FREESCALE

361 / 976 page

MCM as Implemented on MAC7200

MAC7200 Microcontroller Family Reference Manual, Rev. 2

Freescale Semiconductor

283

13.3.2.2

Revision ID (REV)

This 16-bit register identifies the revision ID of the device.

13.3.2.3

AXBS Master/Slave Configuration

The AMC and ASC registers in the MCM indicate the presence of AXBS masters and slaves. Please refer

to Chapter 15, “MAC7200 Crossbar Switch (AXBS)” for a listing of which AXBS masters/slaves are

present on the MAC72xx.

13.3.2.4

Misc. Reset Status Register (MRSR)

On the MAC72xx, all reset sources all consolidated into the CRG module. Therefore, this feature in the

MCM will not be used, and will be removed from the MCM Block Guide for the MAC72xx.

13.3.2.5

Misc. Wakeup Control Register (MWCR)

Since the MAC72xx only supports DOZE mode, this register is used to control wake-up from DOZE mode

with an interrupt. STOP mode is not supported.

13.3.2.6

Software Watchdog Timer (SWT)

The SWT will interrupt the processor periodically to request servicing (in order to prevent software

deadlock or runaway). The SWT includes enable/disable, interrupt/reset and programmable period

functionality.

The SWT interrupt is connected to on-platform interrupt Request #17, and the SWT reset signal will be

fed off-platform to the CRG to allow for soft-reset on a SWT timeout. The SWT clock may be fed from

either the oscillator clock, in normal mode, or from the PLL, when the system enters Self Clock Mode.

By programming the BDMCTL register in the CRG module, the system can automatically stop and start

the SWT counters when the system enters debug mode.

ColdFire v4

$CF40

ColdFire v5

$CF50

Z650 PowerPC

$E650

Table 13-40. MAC72xx PCT and REV registers

Device

PCT

REV

MAC72x2 (0M84D Maskset)

$A700

$7220 1

1. Due to erratum MUCts03562, 0M84D and 1M84D masks share the same revision number

MAC72x2 (1M84D Maskset)

$A700

$7220 1

MAC72x1 (0M19G Maskset)

$A700

$7230

Table 13-39. Processor Core Type (PCT) Values (Continued)

Core

PCT

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