PIC32MX440F512H-80I/PT Microchip Technology, PIC32MX440F512H-80I/PT Datasheet - Page 566

• Manufacturer Part Number: PIC32MX440F512H-80I/PT
• Description: IC PIC MCU FLASH 512K 64-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX440F512H-80I/PT

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K x 8)
• Package / Case: 64-TFQFP
• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: I²C, IrDA, LIN, PMP, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 53
• 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
• Processor Series: PIC32MX4xx
• Core: MIPS
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C , SPI , UART
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 5 x 16 bit, 1 x 32 bit
• Operating Supply Voltage: 2.3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, DM320003, DM320002, MA320002
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Controller Family/series: PIC32
• No. Of I/o's: 51
• Ram Memory Size: 32KB
• Cpu Speed: 80MHz
• No. Of Timers: 5
• Embedded Interface Type: EUART, I2C, PSP, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC244003 - TEST BD MPLAB REAL ICE LOOPBACKDM320003 - BOARD DEMO USB PIC32 OTGAC244006 - KIT MPLAB REAL ICE TRACEAC164327 - MODULE SKT FOR 64TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC32MX3XX/4XX
27.1
In PIC32MX3XX/4XX devices, the Configuration
Words select various device configurations. These
Configuration Words are implemented as volatile mem-
ory registers and must be loaded from the nonvolatile
programmed configuration data mapped in the last four
words (32-bit x 4 words) of boot Flash memory,
DEVCFG0-DEVCFG3. These are the four locations an
external programming device programs with the appro-
priate configuration data (see Table 27-3).
TABLE 27-3:
On Power-on Reset (POR) or any Reset, the Configu-
ration Words are copied from boot FLASH memory to
their corresponding Configuration registers. A Configu-
ration bit can only be programmed = 0 (unprogrammed
state = 1). During programming, a Configuration Word
can be programmed a maximum of two times before a
page erase must be performed.
After programming the Configuration Words, the user
should reset the device to ensure the Configuration
registers are reloaded with the new programmed data.
27.1.1
To prevent inadvertent Configuration bit changes dur-
ing code execution, all programmable Configuration
bits are write-once. After a bit is initially programmed
during a power cycle, it cannot be written to again.
Changing a device configuration requires changes to
the configuration data in the boot Flash memory and
power to the device be cycled.
To ensure the 128-bit data integrity, a comparison is
continuously made between each Configuration bit and
its stored complement. If a mismatch is detected, a
Configuration Mismatch Reset is generated, causing a
device Reset.
DS61143C-page 564
Configuration Word
Device Configuration
DEVCFG0
DEVCFG1
DEVCFG2
DEVCFG3
CONFIGURATION REGISTER
PROTECTION
DEVCFG LOCATIONS
0xBFC0_2FFC
0xBFC0_2FF8
0xBFC0_2FF4
0xBFC0_2FF0
Address
Preliminary
27.2
The PIC32MX features a single device code protection
bit, CP that when programmed = 0, protects boot Flash
and program Flash from being read or modified by an
external programming device. When code protection is
enabled, only the Device ID registers is available to be
read by an external programmer. Boot Flash and pro-
gram Flash memory are not protected from self-pro-
gramming during program execution when code
protection is enabled. See Section 27.3 “Program
Write Protection (PWP)”.
27.3
In addition to a device code protection bit, the
PIC32MX also features write protection bits to prevent
boot Flash and program Flash memory regions from
being written during code execution.
Boot Flash memory is write protected with a single
Configuration bit, BWP (DEVCFG0<24>), when
programmed = 0.
Program Flash memory can be write-protected entirely
or in selectable page sizes using Configuration bits
PWP<7:0> (DEVCFG0<19:12>). A page of Program
Flash memory is 4096 bytes (1024 words). The PWP
bits represent the one’s complement of the number of
protected pages. For example, programming PWP bits
= 0xFF selects 0 pages to be write-protected, effec-
tively disabling the program Flash write protection. Pro-
gramming PWP bits = 0xFE selects the first page to be
write protected. When enabled, the write-protected
memory range is inclusive from the beginning of pro-
gram Flash memory (0xBD00_0000) up through the
selected page. Refer to Table 27-4.
Note:
Device Code Protection
Program Write Protection (PWP)
The PWP bits represent the one’s
complement of the number of protected
pages.
© 2008 Microchip Technology Inc.