EP9315-CB Cirrus Logic Inc, EP9315-CB Datasheet - Page 15

• Manufacturer Part Number: EP9315-CB
• Description: IC ARM920T MCU 200MHZ 352-PBGA
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9315-CB

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, EIDE, Ethernet, I²C, IrDA, Keypad/Touchscreen, PCMCIA, SPI, UART/USART, USB
• Peripherals: AC'97, DMA, I&sup2: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
• 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
• For Use With: 598-1144 - KIT DEVELOPMENT EP9315 ARM9
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: No
• Other names: 598-1261

ER638E2B
Description 12
When an operand to the Crunch add/subtract unit is denormalized, it is forced to zero before input to the
calculation. The sign is unaffected. This affects the following instructions:
When the operand is negative zero, cfcpys and cfcpyd write positive zero to the destination register, while
the result should be negative zero.
When the operand is positive zero, cfnegs and cfnegd write positive zero to the destination register, while
the result should be negative zero.
Workaround
None.
Description 13
The operation cfcvtds, which converts a double floating point value to a single floating point value, never
produces a denormalized result, even if the value can be accurately represented as such. The result
underflows directly to zero. Sign is preserved properly, however.
Workaround
None.
- Copies:
- Add/Sub:
- Absolute value: cfabss, cfabsd
- Negation:
- Conversions:
cfcvtsd, cfcvtds
cfcpys, cfcpyd
cfadds, cfaddd, cfsubs, cfsubd
cfnegs, cfnegd
15