EP9312-IBZ Cirrus Logic Inc, EP9312-IBZ Datasheet - Page 305
EP9312-IBZ
Manufacturer Part Number
EP9312-IBZ
Description
IC ARM920T MCU 200MHZ 352-PBGA
Manufacturer
Cirrus Logic Inc
Series
EP9r
Specifications of EP9312-IBZ
Core Size
16/32-Bit
Package / Case
352-BGA
Core Processor
ARM9
Speed
200MHz
Connectivity
EBI/EMI, EIDE, Ethernet, I²C, IrDA, Keypad/Touchscreen, SPI, UART/USART, USB
Peripherals
AC'97, DMA, I²:S, LCD, LED, MaverickKey, POR, PWM, WDT
Number Of I /o
16
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 3.6 V
Data Converters
A/D 8x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Controller Family/series
(ARM9)
A/d Converter
12 Bits
No. Of I/o Pins
65
Clock Frequency
200MHz
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
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
598-1260
Available stocks
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Manufacturer
Quantity
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Part Number:
EP9312-IBZ
Manufacturer:
CIRRUS
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Part Number:
EP9312-IBZ
Manufacturer:
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DS785UM1
9.1.2 MAC Engine
9.1.2.1 Data Encapsulation
The RAM blocks are interleaved in the AHB address space. AHB address bits 0 and 1 are
byte selects and must be zero for direct access. AHB address bit 2 selects the left or right
RAM array, which is the Transmit or Receive array. AHB address bits 3,4, and 5 perform a 1-
of-8 column select. Address bit 6 selects the even or odd row address. Address bits 7, 8, 9,
and 10 decode the rows. Thus from an AHB addressing perspective, the MAC FIFOs are one
large RAM array.
Table 9-1
are in byte units. All data transfers to the FIFO RAM are restricted to words.
Caution: Accessing the FIFO RAM while the MAC is operating will likely cause a
malfunction.
There is no arbitration logic between direct AHB access and MAC Descriptor Processor
access.
The MAC configurations registers and FIFO RAMs are only word accessible
The MAC engine is compliant with the requirements of ISO/IEC 8802-3 (1993), Sections 3
and 4.
In transmission, the MAC automatically prepends the preamble, and computes and appends
the FCS. The data after the SFD and before the FCS is supplied by the host as the
transmitted data. FCS generation by the MAC may be disabled by setting InhibitCRC bit in
the Transmit Frame Descriptor. Refer to
defines the FIFO RAM address map as it appears in the address space. Address
0x8001_4800 to 0x8001_4FFF
0x8001_5080 to 0x8001_50BF
0x8001_50C0 to 0x8001_50FF
0x8001_4000 to 0x8001_47FF
0x8001_5000 to 0x8001_503F
0x8001_5040 to 0x8001_507F
FIFO RAM Address Map
Copyright 2007 Cirrus Logic
Table 9-1. FIFO RAM Address Map
Figure
9-2.
1/10/100 Mbps Ethernet LAN Controller
Rx Descriptor
Tx Descriptor
Rx Status
Tx Status
Rx Data
Tx Data
Usage
EP93xx User’s Guide
9-3
9
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