EP9302-CQZ Cirrus Logic Inc, EP9302-CQZ Datasheet - Page 771

IC ARM9 SOC PROCESSOR 208LQFP

EP9302-CQZ

Manufacturer Part Number
EP9302-CQZ
Description
IC ARM9 SOC PROCESSOR 208LQFP
Manufacturer
Cirrus Logic Inc
Series
EP9r
Datasheets

Specifications of EP9302-CQZ

Program Memory Type
ROMless
Package / Case
208-LQFP
Core Processor
ARM9
Core Size
16/32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
Peripherals
AC'97, DMA, I&sup2:S, LED, MaverickKey, POR, PWM, WDT
Number Of I /o
19
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 3.6 V
Data Converters
A/D 5x12b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
Data Ram Size
16 bit
Interface Type
USB, USART, SPI
Maximum Clock Frequency
200 MHz
Number Of Programmable I/os
37
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
EDB9302A-Z
Controller Family/series
(ARM9)
No. Of I/o's
19
Ram Memory Size
16MB
Cpu Speed
200MHz
No. Of Timers
4
Embedded Interface Type
AC97, I2S, SPI, UART, USB
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1132 - KIT DEVELOPMENT EP9302 ARM9
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
598-1137

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DS785UM1
27.1 Introduction
27.2 Theory of Operation
The IDE interface provides an industry standard connection to ATA/ATAPI compliant devices.
A single IDE port is provided which will attach to master or slave devices. The interface will
support up to:
The IDE block will use the internal DMA controller to do the data transfers in Multiword DMA
and Ultra DMA modes. The interface will support only 16 bit devices. The data transfer is
always 16-bit wide, even for a non-data transfer in PIO mode, when only the lower 8 bits are
valid.
The IDE host has one request line, DMAide to the DMA controller, used to request DMA
service. It has an external interrupt line, INTRQ, from the device for interrupt service. It also
has an internally generated interrupt signal INTide for reporting internal errors in the IDE host
to the ARM Core.
The IDE port is connected to the external ATAPI device through a 28-pin interface. Of these
28 signals, 25 use dedicated pins, 2 share
EGPIO[15] for DASPn), and the device interrupt request uses one of the
INTRQ.
The IDE interface hardware is composed of several elements: a GPIO like Pin Interface, a
MDMA Transfer State Machine, a UDMA Transfer State Machine, a pair of Read and Write
Data Buffer FIFOs, and a pair of CRC generation circuits.
The interface between the IDE host and the IDE device is defined in
labeled Type identifies the block associated with the processor pin. The GPIO type indicates
the 2 pins that are shared with the EGPIO block. The INT type indicates the pin using one of
the
dedicated pins.
Note: This chapter applies only to the EP9312 and EP9315 processors.
• 2 Devices
• PIO Mode 4
• Multi-word DMA Mode 2
• Ultra DMA Mode 4
INT
pins. The NI type indicates an IDE signal that is not supported. All others are
Copyright 2007 Cirrus Logic
EGPIO
pins (EGPIO[2] for DMARQ and
27IDE Interface
Table
INT
Chapter 27
27-1. The column
pins (INT[3]) for
27-1
27

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