PIC32MX795F512HT-80I/PT Microchip Technology, PIC32MX795F512HT-80I/PT Datasheet - Page 41
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PIC32MX795F512HT-80I/PT
Manufacturer Part Number
PIC32MX795F512HT-80I/PT
Description
512KB Flash, 128KB RAM, 80 MHz, USB, ENET, 2xCAN, 8 DMA 64 TQFP 10x10x1mm T/R
Manufacturer
Microchip Technology
Series
PIC® 32MXr
Datasheets
1.PIC32MX320F032H-40IPT.pdf
(66 pages)
2.PIC32MX575F256H-80IMR.pdf
(2 pages)
3.PIC32MX575F256H-80IMR.pdf
(254 pages)
4.PIC32MX575F256H-80IMR.pdf
(14 pages)
Specifications of PIC32MX795F512HT-80I/PT
Core Processor
MIPS32® M4K™
Core Size
32-Bit
Speed
80MHz
Connectivity
CAN, Ethernet, I²C, SPI, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
128K 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-TFQFP
Processor Series
PIC32MX7xx
Core
MIPS
3rd Party Development Tools
52713-733, 52714-737
Development Tools By Supplier
PG164130, DV164035, DV244005
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC32MX795F512HT-80I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
17.4.4
The value of Device ID register, its mask value, the
value derived from applying the mask, and the 32-bit
summation of bytes are shown in Table 17-4.
From Table 17-4, the value of “DIR” is:
TABLE 17-4:
17.4.5
The values derived in previous sections (PF, BF, DCR,
DIR) are used to calculate the checksum value. First,
perform the 32-bit summation of the PF, BF, DCR and
DIR as derived in previous sections and store it in a
variable, called temp, as shown in Example 17-1.
EXAMPLE 17-1:
© 2010 Microchip Technology Inc.
1.
2.
3.
4.
DIR = 0x00000083 (32-bit number.)
Register
First, temp = PF + BF + DCR + DIR, which translates to:
temp = 0x7F80000 + 0x002FC010 + 0x000005D4 + 0x00000083
Adding all four values results in temp being equal to 0x0827C667
Next, the 1’s complement of temp, called temp1, is calculated:
temp1 = 1’s complement (temp), which is now equal to 0xF7D83998
Finally, the 2’s complement of temp is the checksum:
Checksum = 2’s complement (temp), which is Checksum = temp1 + 1, resulting in 0xF7D83999
DEVID
CALCULATING FOR “DIR” IN THE
CHECKSUM FORMULA
COMPLETING THE PIC32
CHECKSUM CALCULATION
DIR CALCULATION EXAMPLE
CHECKSUM CALCULATION PROCESS
POR Default Value
0x00938053
0x000FF000
Mask
POR Default Value
0x00038000
& Mask
PIC32MX
32-Bit Summation of
0x00000083
DS61145G-page 41
Bytes