AT32UC3A464 Atmel Corporation, AT32UC3A464 Datasheet - Page 76

• Manufacturer Part Number: AT32UC3A464
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A464

• Flash (kbytes): 64 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• Hardware Qtouch Acquisition: No
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8.6
8.7
32002F–03/2010
MAC instructions
MulMac64 instructions
These instructions require one pass through the multiplier array and produce a 32- or 48-bit
result. This result is added to an accumulator register. A valid copy of this accumulator may be
cached in the accumulator cache. Otherwise, an extra cycle is needed to read the accumulator
from the register file. Therefore, issue and result latencies depend on whether the accumulator
is cached in the AccCache.
This group does not set any flags, except for the macsathh.w instruction which set Q if saturation
occurred.
Table 8-3.
These instructions require two passes through the multiplier array to produce a 64-bit result. For
macs.d and macu.d, a valid copy of this accumulator may be cached in the accumulator cache.
Otherwise, an extra cycle is needed to read the accumulator from the register file. Therefore,
issue and result latencies depend on whether a valid entry is found in the accumulator cache.
Table 8-4.
Mnemonics
mac
machh.w
machh.d
macwh.d
macsathh.w
Mnemonics
macs.d
macu.d
muls.d
mulu.d
MAC instructions
MulMac64 instructions
E
E
E
E
E
E
E
E
E
Operands
Rd, Rx, Ry
Rd, Rx<part>,
Ry<part>
Rd, Rx<part>,
Ry<part>
Rd, Rx, Ry<part>
Rd, Rx<part>,
Ry<part>
Operands
Rd, Rx, Ry
Rd, Rx, Ry
Rd, Rx, Ry
Rd, Rx, Ry
Description
Multiply accumulate.
(32 ← 32x32 + 32)
Multiply signed halfwords and accumulate.
(32 ← 16x16 + 32)
Multiply signed halfwords and accumulate.
(48 ← 16x16 + 48)
Multiply signed word and halfword and
accumulate.
(48 ← 32 x 16 + 48)
Fractional signed multiply accumulate with
saturation. Return word.
(32 ← 16 x 16 + 32)
Description
Multiply signed accumulate.
(64 ← 32x32 + 64)
Multiply unsigned accumulate.
(64 ← 32x32 + 64)
Signed Multiply.
(64 ← 32 x 32)
Unsigned Multiply.
(64 ← 32 x 32)
AVR32
Issue
latency
1/2
1/2
1/2
1/2
1/2
Issue
latency
3/4
3/4
2
2
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