EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 82

• Manufacturer Part Number: EP9301-CQZ
• Description: IC ARM9 SOC PROCESSOR 208LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9301-CQZ

• Core Size: 16/32-Bit
• Peripherals: AC'97, DMA, I&sup2:S, LED, MaverickKey, POR, PWM, WDT
• Core Processor: ARM9
• Speed: 166MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
• 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: 0°C ~ 70°C
• Package / Case: 208-TQFP, 208-VQFP
• Controller Family/series: (ARM9)
• No. Of I/o's: 19
• Ram Memory Size: 16MB
• Cpu Speed: 166MHz
• No. Of Timers: 4
• Digital Ic Case Style: TQFP
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 598-1136

3
3-12
MaverickCrunch Co-Processor
EP93xx User’s Guide
SAT[1:0]:
FCC[1:0]:
V:
FWDEN:
Invalid:
Denorm:
RM[1:0]:
IXE:
Copyright 2007 Cirrus Logic
Accumulator saturation mode select. These bits are set to
select the saturation mode or to disable saturation for
accumulator operations:
0X = Saturation disabled for accumulator operations
10 = Accumulator saturation enabled, bit formats 1.63 and
1.31
11 = Accumulator saturation enabled, bit format 2.62
FCC flags out of comparator:
00 = Operand A equals operand B
01 = Operand A less than operand B
10 = Operand A greater than operand B
11 = Operands are unordered (at least one is NaN)
Overflow Flag. Indicates the overflow status of the
previous integer operation:
0 = No overflow
1 = Overflow
Forwarding Enable. This bit determines whether data path
writeback results are forwarded to the data path operand
fetch stage and to the STC/MRC execute stage. When
pipeline interlocks occur due to dependencies of data
path, STC, and MRC instruction source operands on data
path results, setting this bit will improve instruction
throughput:
0 = Forwarding not enabled
1 = Forwarding enabled
0 = No invalid operations detected
1 = An invalid operation was performed
0 = No denormalized numbers have been supplied as
instruction operands
1 = A denormalized number has been supplied as an
instruction operand
Rounding Mode. Selects IEEE 754 rounding mode:
0 0 = Round to nearest
0 1 = Round toward 0
1 0 = Round to
1 1 = Round to
Inexact Trap Enable. Enables/disables software trapping
for IEEE 754 inexact exceptions:
0 = Disable software trapping for inexact exceptions
1 = Enable software trapping for inexact exceptions
-
+
∞
∞
DS785UM1