EP9312-IB Cirrus Logic Inc, EP9312-IB Datasheet - Page 330
EP9312-IB
Manufacturer Part Number
EP9312-IB
Description
IC ARM920T MCU 200MHZ 352-PBGA
Manufacturer
Cirrus Logic Inc
Series
EP9r
Datasheets
1.EP9307-CRZ.pdf
(824 pages)
2.EP9312-IBZ.pdf
(4 pages)
3.EP9312-CB.pdf
(62 pages)
4.EP9312-CB.pdf
(17 pages)
Specifications of EP9312-IB
Core Processor
ARM9
Core Size
16/32-Bit
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
Package / Case
352-BGA
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
No
Other names
598-1259
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EP9312-IBZ
Manufacturer:
CIRRUS
Quantity:
30
Company:
Part Number:
EP9312-IBZ
Manufacturer:
HITTITE
Quantity:
1 200
- EP9307-CRZ PDF datasheet
- EP9312-IBZ PDF datasheet #2
- EP9312-CB PDF datasheet #3
- EP9312-CB PDF datasheet #4
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- Download datasheet (13Mb)
9
Transmit Descriptor Format - First Word
9-28
1/10/100 Mbps Ethernet LAN Controller
EP93xx User’s Guide
9.2.3.9 Transmit Descriptor Format
31
15
register sizes are in bits,
and shown in parentheses ().
Definition:
EOF = 0
EOF = 0
EOF = 1
In the example shown in
MAC starts the frame by acquiring the medium and transmitting the preamble. Then, the
fragments 0, 1, 2 are transmitted in order for a total of 446 bytes (39 + 388 + 19). Since the
CRC bit in the first frame fragment is clear, the HW appends the 4 byte CRC. Thus, 4 more
bytes are added to the frame for the CRC making the total frame length 450 bytes. Finally, the
MAC sends the end-of-frame.
The CMD field is 4 bits. Only the AF bit is valid. The other fields are reserved.
30
14
Example: Fragments 0, 1, 2 make-up one complete frame.
EOF
EOF
EOF
29
13
Index 0 (15)
Index 0 (15)
Index 0 (15)
Buffer
Buffer
Buffer
28
12
T x B u fA d r 0 ( 3 2 )
T x D B u f A d r 1 ( 3 2 )
T x D B u f A d r 2 ( 3 2 )
Transmit Descriptor, first word. Contains the base address of the data buffer.
Figure 9-14. Multiple Fragments Per Transmit Frame
27
11
CMD
CMD
CMD
(4)
(4)
(4)
Figure
Length 0 (12)
Length 0 (12)
Length 0 (12)
26
10
Buffer
Buffer
Buffer
Copyright 2007 Cirrus Logic
9-14, one frame is transmitted from three fragments. The
25
9
24
8
TBA
TBA
23
7
22
6
21
5
Data Fragment 0
Data Fragment 1
Data Fragment 2
20
4
19
3
18
2
Fragment 0
Fragment 1
Fragment 2
388 bytes
89 bytes
19 bytes
Length
Length
Length
17
1
DS785UM1
16
0
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