EP9307-CRZ Cirrus Logic Inc, EP9307-CRZ Datasheet - Page 12
![IC ARM9 SOC ARM920T 272TFBGA](/photos/12/14/121421/ep9307-crz_sml.jpg)
EP9307-CRZ
Manufacturer Part Number
EP9307-CRZ
Description
IC ARM9 SOC ARM920T 272TFBGA
Manufacturer
Cirrus Logic Inc
Series
EP9r
Datasheets
1.EP9307-CRZ.pdf
(16 pages)
2.EP9307-CRZ.pdf
(50 pages)
3.EP9307-CRZ.pdf
(824 pages)
4.EP9307-CRZ.pdf
(48 pages)
Specifications of EP9307-CRZ
Core Size
16/32-Bit
Core Processor
ARM9
Speed
200MHz
Connectivity
EBI/EMI, 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
14
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
272-TFBGA
Controller Family/series
(ARM9)
No. Of I/o's
14
Ram Memory Size
32MB
Cpu Speed
200MHz
No. Of Timers
4
No. Of Pwm Channels
1
Digital Ic Case Style
TFBGA
Embedded Interface Type
AC97, I2S, SPI, UART, USB
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
EDB9307A-Z
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1133 - KIT DEVELOPMENT EP9307 ARM9
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Details
Other names
598-1138
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EP9307-CRZ
Manufacturer:
CIRRUS
Quantity:
20 000
Part Number:
EP9307-CRZ/E2
Manufacturer:
CIRRUS
Quantity:
20 000
Company:
Part Number:
EP9307-CRZR
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
12
Description 7
The coprocessor can incorrectly update one of its destination accumulators even if the coprocessor
instruction should not have been executed or is canceled by the ARM processor. This error can occur if the
following is true:
1) The first instruction must be a coprocessor compare instruction, one of cfcmp32, cfcmp64, cfcmps, and
2) The second instruction:
Example 1: In this case the second instruction may modify a2 even if the condition is not matched.
Example 2: In this case the second instruction may modify a2 even if an interrupt or exception causes it to
be canceled and re-executed after the interrupt/exception handler returns.
Workaround
The workaround for this issue is to insure that at least one other instruction appears between these
instructions. For example, possible fixes for the instructions sequences above are:
and
Description 8
If a data abort occurs on an instruction preceding a coprocessor data path instruction that writes to one of
the accumulators
For example:
The second instruction will update a0 even though it should be canceled due to the data abort on the
previous instruction.
cfcmp32
cfmva64ne
cfcmp32
cfmadda
cfcmp32
nop
cfmva64ne
cfcmp32
nop
cfmadda
str
cfmadda32
cfcmpd.
- has an accumulator as a destination
- does not execute
3
, the accumulator may be updated even though the instruction was canceled.
r15, c0, c5
a2, c8
r15, c0, c5
a2, a2, c0, c1
r15, c0, c5
a2, c8
r15, c0, c5
a2, a2, c0, c1
1
r7, [r0, #0x1d]
a0, a2, c0, c1
.
(Continued)
3
.
; assume this causes a data abort
ER667E2B