PIC24FJ256GB210-I/BG Microchip Technology, PIC24FJ256GB210-I/BG Datasheet - Page 332
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PIC24FJ256GB210-I/BG
Manufacturer Part Number
PIC24FJ256GB210-I/BG
Description
IC, 16BIT MCU, PIC24F, 32MHZ, BGA-121
Manufacturer
Microchip Technology
Series
PIC® 24Fr
Specifications of PIC24FJ256GB210-I/BG
Controller Family/series
PIC24
No. Of I/o's
84
Ram Memory Size
96KB
Cpu Speed
32MHz
No. Of Timers
5
No. Of Pwm Channels
9
Core Size
16 Bit
Program Memory Size
256KB
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, IrDA, SPI, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
84
Program Memory Type
FLASH
Ram Size
96K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 3.6 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
121-TFBGA
Processor Series
PIC24FJ
Core
PIC
Data Bus Width
16 bit
Data Ram Size
96 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
44
Number Of Timers
5
Operating Supply Voltage
2.2 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52713-733, 52714-737, 53276-922, EWDSPIC
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, DM240001, MA240021
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 24 Channel
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:
PIC24FJ256GB210-I/BG
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC24FJ256GB210 FAMILY
26.4
PIC24FJ256GB210 family devices provide two compli-
mentary methods to protect application code from
overwrites and erasures. These also help to protect the
device from inadvertent configuration changes during
run time.
26.4.1
For all devices in the PIC24FJ256GB210 family, the
on-chip program memory space is treated as a single
block, known as the General Segment (GS). Code pro-
tection for this block is controlled by one Configuration
bit, GCP. This bit inhibits external reads and writes to
the program memory space. It has no direct effect in
normal execution mode.
Write protection is controlled by the GWRP bit in the
Configuration Word. When GWRP is programmed to
‘0’, internal write and erase operations to program
memory are blocked.
26.4.2
In addition to global General Segment protection, a
separate subrange of the program memory space can
be individually protected against writes and erases.
This area can be used for many purposes where a sep-
arate block of write and erase-protected code is
needed, such as bootloader applications. Unlike
common boot block implementations, the specially
protected segment in the PIC24FJ256GB210 family
devices can be located by the user anywhere in the
program space and configured in a wide range of sizes.
Code segment protection provides an added level of
protection to a designated area of program memory by
disabling the NVM safety interlock whenever a write or
erase address falls within a specified range. It does not
override General Segment protection controlled by the
GCP or GWRP bits. For example, if GCP and GWRP
are enabled, enabling segmented code protection for
the bottom half of program memory does not undo the
General Segment protection for the top half.
DS39975A-page 332
Program Verification and
Code Protection
GENERAL SEGMENT PROTECTION
CODE SEGMENT PROTECTION
The size and type of protection for the segmented code
range are configured by the WPFPx, WPEND, WPCFG
and WPDIS bits in Configuration Word 3. Code seg-
ment protection is enabled by programming the WPDIS
bit (= 0). The WPFP bits specify the size of the segment
to be protected by specifying the 512-word code page
that is the start or end of the protected segment. The
specified region is inclusive, therefore, this page will
also be protected.
The WPEND bit determines if the protected segment
uses the top or bottom of the program space as a
boundary. Programming WPEND (= 0) sets the bottom
of program memory (000000h) as the lower boundary
of the protected segment. Leaving WPEND unpro-
grammed (= 1) protects the specified page through the
last page of implemented program memory, including
the Configuration Word locations.
A separate bit, WPCFG, is used to protect the last page
of program space, including the Flash Configuration
Words. Programming WPCFG (= 0) protects the last
page in addition to the pages selected by the WPEND
and WPFP<7:0> bits setting. This is useful in circum-
stances where write protection is needed for both the
code segment in the bottom of the memory and the
Flash Configuration Words.
The various options for segment code protection are
shown in Table 26-2.
2010 Microchip Technology Inc.
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