dsPIC33FJ32GP102-I/SO Microchip Technology, dsPIC33FJ32GP102-I/SO Datasheet - Page 81

• Manufacturer Part Number: dsPIC33FJ32GP102-I/SO
• Description: Digital Signal Processors & Controllers - DSP, DSC 16bit Gen Prp Fam16 MIPS 32KBFLSH 2KBRAM
• Manufacturer: Microchip Technology
• Type: dsPIC33FJ32(GP/MC)101/102/104r

Specifications of dsPIC33FJ32GP102-I/SO

• Rohs: yes
• Core: dsPIC33F
• Data Bus Width: 16 bit
• Program Memory Size: 32 KB
• Data Ram Size: 2 KB
• Maximum Clock Frequency: 7.37 MHz, 32 kHz
• Number Of Programmable I/os: 21
• Number Of Timers: 5 x 16-bit, 2 x 32-bit
• Device Million Instructions Per Second: 16 MIPs
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 125 C
• Package / Case: QFN-28
• Mounting Style: SMD/SMT
• Family / Core: dsPIC33FJ32(GP/MC)101/102/104
• Interface Type: I2C, SPI, UART
• Minimum Operating Temperature: - 40 C
• On-chip Adc: Yes
• Product: DSPs
• Program Memory Type: Flash
• Supply Current: 10 mA

4.6.2
The TBLRDL and TBLWTL instructions offer a direct
method of reading or writing the lower word of any
address within the program space without going
through data space. The TBLRDH and TBLWTH
instructions are the only method to read or write the
upper 8 bits of a program space word as data.
The PC is incremented by two for each successive
24-bit program word. This allows program memory
addresses to directly map to data space addresses. Pro-
gram memory can thus be regarded as two 16-bit-wide
word address spaces, residing side by side, each with
the same address range. TBLRDL and TBLWTL access
the space that contains the least significant data word.
TBLRDH and TBLWTH access the space that contains the
upper data byte.
Two table instructions are provided to move byte or
word-sized (16-bit) data to and from program space.
Both function as either byte or word operations.
• TBLRDL (Table Read Low):
FIGURE 4-10:
 2011-2012 Microchip Technology Inc.
- In Word mode, this instruction maps the
- In Byte mode, either the upper or lower byte
dsPIC33FJ16(GP/MC)101/102 AND dsPIC33FJ32(GP/MC)101/102/104
lower word of the program space location
(P<15:0>) to a data address (D<15:0>).
of the lower program word is mapped to the
lower byte of a data address. The upper byte
is selected when Byte Select is ‘1’; the lower
byte is selected when it is ‘0’.
TBLPAG
02
DATA ACCESS FROM PROGRAM
MEMORY USING TABLE
INSTRUCTIONS
23
ACCESSING PROGRAM MEMORY WITH TABLE INSTRUCTIONS
15
0
0x000000
0x020000
0x030000
0x800000
Program Space
The address for the table operation is determined by the data EA
within the page defined by the TBLPAG register.
Only read operations are shown; write operations are also valid in
the user memory area.
TBLRDH.B (Wn<0> = 0)
TBLRDL.B (Wn<0> = 1)
TBLRDL.B (Wn<0> = 0)
TBLRDL.W
• TBLRDH (Table Read High):
In a similar fashion, two table instructions, TBLWTH
and TBLWTL, are used to write individual bytes or
words to a program space address. The details of
their operation are explained in
Program
For all table operations, the area of program memory
space to be accessed is determined by the Table Page
register (TBLPAG). TBLPAG covers the entire program
memory space of the device, including user and
configuration spaces. When TBLPAG<7> = 0, the table
page is located in the user memory space. When
TBLPAG<7> = 1, the page is located in configuration
space.
‘Phantom’ Byte
00000000
00000000
00000000
00000000
- In Word mode, this instruction maps the entire
- In Byte mode, this instruction maps the upper
upper word of a program address (P<23:16>)
to a data address. Note that D<15:8>, the
‘phantom byte’, will always be ‘0’.
or lower byte of the program word to D<7:0>
of the data address, in the TBLRDL instruc-
tion. The data is always ‘0’ when the upper
‘phantom’ byte is selected (Byte Select = 1).
Memory”.
23
16
Section 5.0 “Flash
8
DS70652E-page 81
0