EP9301-IQZ Cirrus Logic Inc, EP9301-IQZ Datasheet - Page 121
![32-Bit Microcontroller IC](/photos/12/23/122383/mfg_ep9301_parts_sml.jpg)
EP9301-IQZ
Manufacturer Part Number
EP9301-IQZ
Description
32-Bit Microcontroller IC
Manufacturer
Cirrus Logic Inc
Series
EP9r
Specifications of EP9301-IQZ
Controller Family/series
(ARM9)
Core Size
32 Bit
A/d Converter
12 Bits
Supply Voltage
3.3V
No. Of I/o Pins
24
Mounting Type
Surface Mount
Operating Temperature Min
-40°C
Package / Case
208-LQFP
Core Processor
ARM9
Speed
166MHz
Connectivity
EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
Peripherals
AC'97, DMA, I²:S, LED, MaverickKey, POR, PWM, WDT
Number Of I /o
19
Program Memory Type
ROMless
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
-40°C ~ 85°C
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Details
Other names
598-1250
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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DS785UM1
4.1.2.3 Flowchart
Figure 4-1
8. If it is not a Serial Download, attempt to read from SPI Serial Flash (see
9. Attempt to read the “CRUS” or “SURC” HeaderID in ASCII in FLASH memory at FLASH
10.Attempt to read the “CRUS” or “SURC” HeaderID in ASCII in FLASH memory at FLASH
11.Attempt to read the “CRUS” or “SURC” HeaderID in ASCII in memory at 0xC000_0000
12.Attempt to read the “CRUS” or “SURC” HeaderID in ASCII in memory at 0xC000_1000
13.If “CRUS” or “SURC” HeaderID is not found, copy dummy vectors into low SDRAM, and
then follow Steps A, B, C, and D.
Base + 0x0000, and verify the HeaderID. This is read in for each FLASH Chip select
(see
Base + 0x1000, and verify the HeaderID. This is read in for each FLASH Chip select
(see
and 0xF000_0000, and verify the HeaderID. This is read in for SDRAM or SyncFLASH
boot (see
and 0xF000_1000, and verify the HeaderID. This is read in for SDRAM or SyncFLASH
boot (see
then follow Step A.
A. Check if the first 4 bytes from the Serial Flash are equal to “CRUS” or to “SURC” in
B. Read the next 2048 (decimal count) bytes into the Internal Boot Buffer
C. Turn on Green LED
D. Jump to the start of the Internal Boot Buffer
A. Turn on Green LED
B. Jump to the start of FLASH memory plus four bytes
A. Turn on Green LED
B. Jump to the start of FLASH memory
A. Turn on Green LED
B. Jump to memory location 0xC000_0004 or 0xF000_0004
A. Turn on Green LED
B. Jump to memory location 0xC000_0000 or 0xF000_0000
A. Flash Green LED
ASCII, verifying the HeaderID
Figure
Figure
provides a flow chart for operation of the Boot ROM software.
Figure
Figure
4-1), and then follow Steps A and B.
4-1), and then follow Steps A and B.
4-1), and then follow Steps A and B.
4-1), and then follow Steps A and B.
Copyright 2007 Cirrus Logic
EP93xx User’s Guide
Figure
4-1), and
Boot ROM
4-3
4
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