MC68MH360AI25L Freescale Semiconductor, MC68MH360AI25L Datasheet - Page 17

• Manufacturer Part Number: MC68MH360AI25L
• Description: IC MPU QUICC 25MHZ 240-FQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68MH360AI25L

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 240-FQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Chapter 1
Overview
10
10
This chapter gives an overview of the QMC protocol including some example applications.
1.1 The QMC (QUICC Multichannel Controller)
The QMC protocol emulates up to 64 logical channels within one SCC (serial
communication controller) using the same time-division-multiplexed (TDM) physical
interface. This multichannel protocol is implemented using the CPM ROM space and
additional hardware; it is not a downloadable microcode.
The standard QUICC family members (MC68360
applications but can only support one logical channel per SCC. The parts currently
supporting the QMC protocol are a superset to the following devices:
The QMC parts are pin-compatible with their respective family members. With minor
adjustments, they can be used in identical applications such as primary rate ISDN support.
1.2 Introduction
Ideal for E1/T1 applications, the QMC protocol can multiplex any 64-channel combination
of subgroups to one TDM interface.
Each of the channels can be separately programmed either to perform HDLC formatting/
deformatting or to act as a transparent channel.
Both of the SI serial interfaces (for example, TDM
protocol. The SI transfers the whole frame to an SCC
• MC68MH360 is a superset of the MC68EN360
• MPC860MH is a superset of the MPC860EN
• MPC860DH is a superset of the MPC860DE
1
2
3
the QMC microcode.
4
MC68360 is trademarked as the QUICC.
MPC860 is trademarked as the PowerQUICC.
On the MC68MH360, protocol support for Centronics and BISYNC have been removed to create space for
This is the normal operating mode; however, it is possible to split the TDM stream over several SCCs.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Chapter 1. Overview
a
or TDM
1
3
, MPC860
4
. Using the CPM RISC, the SCC
b
) can be dedicated to the QMC
2
, etc.) work in TDM