MOD5272-100IR NetBurner Inc, MOD5272-100IR Datasheet - Page 339

• Manufacturer Part Number: MOD5272-100IR
• Description: PROCESSOR MODULE FLASH MOD5272
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5272-100IR

• Module/board Type: Processor Module
• Ethernet Connection Type: 10/100 Ethernet Port RJ-45
• Operating Voltage: 3.3 V
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MOD5272
• For Use With: 528-1001 - KIT DEVELOP NETWORK FOR MOD5272
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 528-1008

MOTOROLA
Chapter 14
Queued Serial Peripheral Interface
(QSPI) Module
This chapter describes the queued serial peripheral interface (QSPI) module. Following a
feature-set overview is a description of operation including details of the QSPI’s internal
RAM organization. The chapter concludes with the programming model and a timing
diagram.
14.1 Overview
The queued serial peripheral interface module provides a serial peripheral interface with
queued transfer capability. It allows users to enqueue up to 16 transfers at once, eliminating
CPU intervention between transfers. Transfer RAMs in the QSPI are indirectly accessible
using address and data registers.
Functionality is very similar, but not identical, to the QSPI portion of the QSM (queued
serial module) implemented in the MC68332.
14.2 Features
14.3 Module Description
The QSPI module communicates with the integrated ColdFire CPU using internal memory
mapped registers located starting at MBAR + 0xA0. See also Section 14.5, “Programming
Model.” A block diagram of the QSPI module is shown in Figure 14-1.
• Programmable queue to support up to 16 transfers without user intervention
• Supports transfer sizes of 8 to 16 bits in 1-bit increments
• Four peripheral chip-select lines for control of up to 15 devices
• Baud rates from 129.4 Kbps to 33 Mbps at 66 MHz
• Programmable delays before and after transfers
• Programmable clock phase and polarity
• Supports wraparound mode for continuous transfers
Chapter 14. Queued Serial Peripheral Interface (QSPI) Module
14-1