EP9301-IQZ Cirrus Logic Inc, EP9301-IQZ Datasheet - Page 387
![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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- Download datasheet (13Mb)
RXBufThrshld
DS785UM1
31
15
Definition:
Bit Descriptions:
Address:
Suggested Value:
Chip Reset:
Soft Reset:
Definition:
Bit Descriptions:
Note: There are other reasons to schedule bus transfers other than reaching the threshold. One
30
14
of these is when an end of frame is received. The lower 2 bits of each threshold are always
zero.
29
13
RSVD
RSVD
28
12
Transmit Status Queue Current Address. The Transmit Status Queue Current
Address contains the address being used to transfer transmit status to the
queue. This register is available for debugging.
TSQCA:
0x8001_00D0 - Read/Write
0x0080_0040
0x0000_0000
Unchanged
Receive Buffer Threshold register. The receive buffer thresholds are used to
set a limit on the amount of receive data which is held in the receive data FIFO
before a bus request will be scheduled. When the number of words in the
FIFO exceeds the threshold value, the Descriptor Processor will schedule a
bus request to transfer data. The actual posting of the bus request may be
delayed due to lack of resources in the MAC, such as no active receive
descriptor.
RSVD:
0:
RDHT:
27
11
26
10
Copyright 2007 Cirrus Logic
25
9
Transmit Status Queue Current Address.
Reserved. Unknown During Read.
Must be written as “0”.
Receive Data Hard Threshold.
24
8
23
7
22
6
RDHT
RDST
21
1/10/100 Mbps Ethernet LAN Controller
5
20
4
19
3
EP93xx User’s Guide
18
2
17
0
1
0
16
9-85
0
0
0
9
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