PIC24FJ256GB106-I/MR Microchip Technology, PIC24FJ256GB106-I/MR Datasheet - Page 23

• Manufacturer Part Number: PIC24FJ256GB106-I/MR
• Description: IC, 16BIT MCU, PIC24F, 32MHZ, QFN-64
• Manufacturer: Microchip Technology
• Series: PIC® 24Fr

Specifications of PIC24FJ256GB106-I/MR

• Controller Family/series: PIC24
• No. Of I/o's: 51
• Ram Memory Size: 16KB
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Core Size: 16 Bit
• Program Memory Size: 256KB
• Peripherals: ADC, Comparator, PWM, RTC, Timer
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART, USB OTG
• Number Of I /o: 51
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Processor Series: PIC24FJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 52
• Number Of Timers: 5
• 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, PG164120, DM240001, DM240011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1004 - PIC24 BREAKOUT BOARD
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

3.9
The procedure for reading configuration memory is
similar to the procedure for reading code memory,
except that 16-bit data words are read (with the upper
byte read being all ‘0’s) instead of 24-bit words.
Configuration Words are read one register at a time.
TABLE 3-10:
© 2007 Microchip Technology Inc.
Step 1: Exit Reset vector.
Step 2: Initialize TBLPAG, the Read Pointer (W6) and the Write Pointer (W7) for TBLRD instruction.
Step 3: Read the Configuration register and write it to the VISI register (located at 784h), and clock out the
Step 4: Repeat Step 3 twice to read Configuration Word 2 and Configuration Word 1.
Step 5: Reset device internal PC.
Command
(Binary)
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0000
0001
0000
0000
0000
Reading Configuration Words
VISI register using the REGOUT command.
SERIAL INSTRUCTION EXECUTION FOR READING ALL CONFIGURATION MEMORY
000000
040200
000000
200xx0
880190
2xxxx7
207847
000000
BA0BB6
000000
000000
<VISI>
000000
040200
000000
(Hex)
Data
NOP
GOTO
NOP
MOV
MOV
MOV
MOV
NOP
TBLRDL
NOP
NOP
Clock out contents of VISI register
NOP
GOTO
NOP
0x200
<CW3Address23:16>, W0
W0, TBLPAG
<CW3Address15:0>, W6
#VISI, W7
[W6++], [W7]
0x200
PIC24FJXXXGA1/GB1
Table 3-10 shows the ICSP programming details for
reading the Configuration Words. Note that the
TBLPAG register must be loaded with 00h for 64 Kbyte
and below devices and 01h for 128 Kbyte and larger
devices (the upper byte address of configuration mem-
ory), and the Read Pointer, W6, is initialized to the
lower 16 bits of the Configuration Word location.
Description
DS39907A-page 23