EP9315-CBZ Cirrus Logic Inc, EP9315-CBZ Datasheet - Page 330
EP9315-CBZ
Manufacturer Part Number
EP9315-CBZ
Description
IC ARM9 SOC ENH UNIV 352PBGA
Manufacturer
Cirrus Logic Inc
Series
EP9r
Specifications of EP9315-CBZ
Core Size
16/32-Bit
Core Processor
ARM9
Speed
200MHz
Connectivity
EBI/EMI, EIDE, Ethernet, I²C, IrDA, Keypad/Touchscreen, PCMCIA, 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
0°C ~ 70°C
Package / Case
352-BGA
Controller Family/series
(ARM9)
No. Of I/o's
16
Cpu Speed
200MHz
No. Of Timers
5
Digital Ic Case Style
BGA
Supply Voltage Range
1.65V To 1.94V, 3V To 3.6V
Embedded Interface Type
SPI
Rohs Compliant
Yes
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
EDB9315A-Z
Case
BGA
Dc
06+
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1144 - KIT DEVELOPMENT EP9315 ARM9
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Details
Other names
598-1139
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EP9315-CBZ
Manufacturer:
CIRRUS
Quantity:
20 000
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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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