PIC32MX664F064HT-I/PT Microchip Technology, PIC32MX664F064HT-I/PT Datasheet - Page 47

• Manufacturer Part Number: PIC32MX664F064HT-I/PT
• Description: 64 PINS, 64KB Flash, 32KB RAM, 80 MHz, USB, Ethernet, 4 DMA 64 TQFP 10x10x1mm T/
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX664F064HT-I/PT

• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: Ethernet, I²C, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP
• Processor Series: PIC32MX5x
• Core: MIPS32
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 5
• Operating Supply Voltage: 2.3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

TABLE 3-1:
The MIPS architecture defines that the result of a
multiply or divide operation be placed in the HI and LO
registers. Using the Move-From-HI (MFHI) and Move-
From-LO (MFLO) instructions, these values can be
transferred to the General Purpose Register file.
In addition to the HI/LO targeted operations, the
MIPS32 architecture also defines a multiply instruction,
MUL, which places the least significant results in the pri-
mary register file instead of the HI/LO register pair. By
avoiding the explicit MFLO instruction required when
using the LO register, and by supporting multiple desti-
nation registers, the throughput of multiply-intensive
operations is increased.
Two other instructions, Multiply-Add (MADD) and
Multiply-Subtract (MSUB), are used to perform the
multiply-accumulate and multiply-subtract operations.
The MADD instruction multiplies two numbers and then
adds the product to the current contents of the HI and
LO registers. Similarly, the MSUB instruction multiplies
two operands and then subtracts the product from the
HI and LO registers. The MADD and MSUB operations
are commonly used in DSP algorithms.
© 2010 Microchip Technology Inc.
MULT/MULTU, MADD/MADDU,
MSUB/MSUBU
MUL
DIV/DIVU
Opcode
PIC32MX5XX/6XX/7XX FAMILY CORE HIGH-PERFORMANCE INTEGER
MULTIPLY/DIVIDE UNIT LATENCIES AND REPEAT RATES
Operand Size (mul rt) (div rs)
16 bits
32 bits
16 bits
32 bits
16 bits
24 bits
32 bits
8 bits
3.2.3
In the MIPS architecture, CP0 is responsible for the
virtual-to-physical address translation, the exception
control system, the processor’s diagnostics capability,
the operating modes (Kernel, User and Debug) and
whether interrupts are enabled or disabled. Configura-
tion information, such as presence of options like
MIPS16e, is also available by accessing the CP0
registers, listed in
PIC32MX5XX/6XX/7XX
SYSTEM CONTROL
COPROCESSOR (CP0)
Table
Latency
12
19
26
33
1
2
2
3
3-2.
DS61156F-page 47
Repeat Rate
18
25
32
11
1
2
1
2