PIC24HJ12GP202-E/SO Microchip Technology, PIC24HJ12GP202-E/SO Datasheet - Page 43

• Manufacturer Part Number: PIC24HJ12GP202-E/SO
• Description: 12KB, Flash, 1024bytes-RAM, 40MIPS, 21I/O, 16-bit Family,nanoWatt 28 SOIC .300in
• Manufacturer: Microchip Technology
• Series: PIC® 24Hr

Specifications of PIC24HJ12GP202-E/SO

• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 12KB (4K x 24)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164339 - MODULE SKT FOR PM3 28SOICDV164033 - KIT START EXPLORER 16 MPLAB ICD2
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.0
The PIC24HJ12GP201/202 devices contain internal
Flash program memory for storing and executing
application code. The memory is readable, writable and
erasable during normal operation over the entire V
range.
Flash memory can be programmed in two ways:
• In-Circuit Serial Programming™ (ICSP™)
• Run-Time Self-Programming (RTSP)
ICSP allows a PIC24HJ12GP201/202 device to be
serially programmed while in the end application circuit.
This is done with two lines for programming clock and
programming data (one of the alternate programming
pin pairs: PGECx/PGEDx), and three other lines for
power (V
This allows users to manufacture boards with
unprogrammed devices and then program the digital
signal controller just before shipping the product. This
also allows the most recent firmware or a custom
firmware to be programmed.
FIGURE 5-1:
© 2009 Microchip Technology Inc.
Note:
programming capability
FLASH PROGRAM MEMORY
DD
), ground (V
This data sheet summarizes the features
of the PIC24HJ12GP201/202 family of
devices. However, it is not intended to be
a comprehensive reference source. To
complement the information in this data
sheet, refer to the “PIC24H Family
Reference Manual”, Section 4. “Program
Memory” (DS70228), which is available
from
(www.microchip.com).
Using
Program Counter
Using
Table Instruction
User/Configuration
Space Select
the
ADDRESSING FOR TABLE REGISTERS
SS
) and Master Clear (MCLR).
Microchip
1/0
0
web
TBLPAG Reg
8 bits
site
Preliminary
DD
Program Counter
24-bit EA
24 bits
PIC24HJ12GP201/202
RTSP is accomplished using TBLRD (table read) and
TBLWT (table write) instructions. With RTSP, the user
application can write program memory data either in
blocks or ‘rows’ of 64 instructions (192 bytes) or a sin-
gle program memory word, and erase program mem-
ory in blocks or ‘pages’ of 512 instructions (1536
bytes).
5.1
Regardless of the method used, all programming of
Flash memory is done with the table-read and table-
write instructions. These allow direct read and write
access to the program memory space from the data
memory while the device is in normal operating mode.
The 24-bit target address in the program memory is
formed using bits <7:0> of the TBLPAG register and the
Effective Address (EA) from a W register specified in
the table instruction, as shown in Figure 5-1.
The TBLRDL and the TBLWTL instructions are used to
read or write to bits<15:0> of program memory.
TBLRDL and TBLWTL can access program memory in
both Word and Byte modes.
The TBLRDH and TBLWTH instructions are used to read
or write to bits<23:16> of program memory. TBLRDH
and TBLWTH can also access program memory in Word
or Byte mode.
Working Reg EA
16 bits
Table Instructions and Flash
Programming
0
Byte
Select
DS70282D-page 41