EP9301-IQZ Cirrus Logic Inc, EP9301-IQZ Datasheet - Page 55
![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
0x8000_xxxx
0x8000_0000 - 0x8000_003C
0x8000_0040 - 0x8000_007C
0x8000_0080 - 0x8000_00BC
0x8000_00C0 - 0x8000_00FC M2P Channel 3 Registers (Rx) Memory-to-Peripheral Channel 3 Registers (Rx)
0x8000_0100 - 0x8000_013C
2.3.6 Internal Register Map
2.3.6.1 Memory Access Rules
Table 2-8 on page 2-17
their default state by the
registers are reset only by the
specified.
Any memory address not specifically assigned to a register should be avoided. Reads to
register memory addresses labelled Reserved, Unused or Undefined will return
indeterminate data. Writes to register memory addresses labelled Reserved, Unused or
Undefined are generally ignored, but this behavior is not guaranteed. Many register
addresses are not fully decoded, so aliasing may occur. Addresses and memory ranges
listed as Reserved (RSVD) should not be accessed; behavior resulting from accesses to
these regions is not defined.
The SW Lock field identifies registers with a software lock. A software lock prevents the
register from being written (unless an unlock operation is performed immediately prior to the
write). Any register whose accidental alteration could cause system damage may be
controlled with a software lock. Each peripheral with software lock capability has its own
software lock register.
Within a register definition, a reserved bit indicated by the name RSVD, means the bit is not
accessible. Software should mask the RSVD bits when doing bit reads. RSVD bits will ignore
writes, that is writing a zero or a one has no affect.
Register bits identified as NC are functionally alive but have an undocumented or a “don’t
care” operating function. Bits identified as NC must be treated in a specific manner for reads
and writes. The register descriptions will provide information on how to handle NC bits.
Unless specified otherwise, all registers can be accessed as a byte, half-word, or word.
Address
Note: The shaded memory areas are dedicated to system registers. Details of these registers
are in
CAUTION: Some memory locations are listed as Reserved. These memory locations
should not be accessed. Reading from these memory locations will yield invalid data.
Writing to these memory locations may cause unpredictable results.
Table
M2P Channel 0 Registers (Tx)
M2P Channel 1 Registers (Rx) Memory-to-Peripheral Channel 1 Registers (Rx)
M2P Channel 2 Registers (Tx)
M2M Channel 0 Registers
2-8.
Register Name
shows the memory map for internal registers. Registers are set to
RSTOn
DMA
Table 2-8. Internal Register Map
Copyright 2007 Cirrus Logic
PRSTn
pin input or by the
pin. All registers are read/write unless otherwise
Memory-to-Peripheral Channel 0 Registers (Tx)
Memory-to-Peripheral Channel 2 Registers (Tx)
Memory-to-Memory Channel 0 Registers
ARM920T Core and Advanced High-Speed Bus (AHB)
PRSTn
DMA Control Registers
Register Description
pin input. Some state conserving
EP93xx User’s Guide
Lock
SW
2-17
N
N
N
N
N
2
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