DSPIC33FJ12MC202-I/SP Microchip Technology, DSPIC33FJ12MC202-I/SP Datasheet - Page 46
![IC DSPIC MCU/DSP 12K 28DIP](/photos/6/59/65908/150-28-dip_sml.jpg)
DSPIC33FJ12MC202-I/SP
Manufacturer Part Number
DSPIC33FJ12MC202-I/SP
Description
IC DSPIC MCU/DSP 12K 28DIP
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr
Datasheets
1.PIC24HJ12GP201-ISO.pdf
(84 pages)
2.DSPIC33FJ12MC201-ISO.pdf
(288 pages)
3.DSPIC33FJ12MC201-ISO.pdf
(14 pages)
4.DSPIC33FJ12MC202-IML.pdf
(282 pages)
Specifications of DSPIC33FJ12MC202-I/SP
Core Processor
dsPIC
Core Size
16-Bit
Speed
40 MIPs
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
Number Of I /o
21
Program Memory Size
12KB (12K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 6x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Core Frequency
40MHz
Core Supply Voltage
2.75V
Embedded Interface Type
I2C, JTAG, SPI, UART
No. Of I/o's
21
Flash Memory Size
12KB
Supply Voltage Range
3V To 3.6V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164337 - MODULE SOCKET FOR PM3 40DIPDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- PIC24HJ12GP201-ISO PDF datasheet
- DSPIC33FJ12MC201-ISO PDF datasheet #2
- DSPIC33FJ12MC201-ISO PDF datasheet #3
- DSPIC33FJ12MC202-IML PDF datasheet #4
- Current page: 46 of 288
- Download datasheet (5Mb)
4.2.6
In addition to its use as a working register, the W15
register in the dsPIC33FJ12MC201/202 devices is also
used as a software Stack Pointer. The Stack Pointer
always points to the first available free word and grows
from lower to higher addresses. It pre-decrements for
stack pops and post-increments for stack pushes, as
shown in Figure 4-4. For a PC push during any CALL
instruction, the MSb of the PC is zero-extended before
the push, ensuring that the MSb is always clear.
The Stack Pointer Limit register (SPLIM) associated
with the Stack Pointer sets an upper address boundary
for the stack. SPLIM is uninitialized at Reset. As is the
case for the Stack Pointer, SPLIM<0> is forced to ‘0’
because all stack operations must be word aligned.
Whenever an EA is generated using W15 as a source
or destination pointer, the resulting address is
compared with the value in SPLIM. If the contents of
the Stack Pointer (W15) and the SPLIM register are
equal and a push operation is performed, a stack error
trap will not occur. However, the stack error trap will
occur on a subsequent push operation. For example, to
cause a stack error trap when the stack grows beyond
address 0x0C00 in RAM, initialize the SPLIM with the
value 0x0BFE.
Similarly, a Stack Pointer underflow (stack error) trap is
generated when the Stack Pointer address is found to
be less than 0x0800. This prevents the stack from
interfering with the SFR space.
A write to the SPLIM register should not be immediately
followed by an indirect read operation using W15.
FIGURE 4-4:
DS70265D-page 44
0x0000
Note:
15
000000000
SOFTWARE STACK
A PC push during exception processing
concatenates the SRL register to the MSb
of the PC prior to the push.
<Free Word>
PC<15:0>
PC<22:16>
CALL STACK FRAME
0
POP : [--W15]
PUSH : [W15++]
W15 (before CALL)
W15 (after CALL)
Preliminary
4.2.7
The dsPIC33F product family supports Data RAM
protection features that enable segments of RAM to be
protected when used in conjunction with Boot and
Secure Code Segment Security. BSRAM (Secure RAM
segment for BS) is accessible only from the Boot
Segment Flash code, when enabled. SSRAM (Secure
RAM segment for RAM) is accessible only from the
Secure Segment Flash code, when enabled. See
Table 4-1 for an overview of the BSRAM and SSRAM
SFRs.
4.3
The addressing modes shown in Table 4-26 form the
basis of the addressing modes that are optimized to
support the specific features of individual instructions.
The addressing modes provided in the MAC class of
instructions differ from those provided in other
instruction types.
4.3.1
Most file register instructions use a 13-bit address field
(f) to directly address data present in the first 8192
bytes of data memory (near data space). Most file
register instructions employ a working register, W0,
which is denoted as WREG in these instructions. The
destination is typically either the same file register or
WREG (with the exception of the MUL instruction),
which writes the result to a register or register pair. The
MOV instruction allows additional flexibility and can
access the entire data space.
4.3.2
The three-operand MCU instructions are of the form:
Operand 3 = Operand 1 <function> Operand 2
where Operand 1 is always a working register (that is,
the addressing mode can only be register direct), which
is referred to as Wb. Operand 2 can be a W register,
fetched from data memory, or a 5-bit literal. The result
location can be either a W register or a data memory
location.
supported by MCU instructions:
• Register Direct
• Register Indirect
• Register Indirect Post-Modified
• Register Indirect Pre-Modified
• 5-bit or 10-bit Literal
Note:
Instruction Addressing Modes
The
DATA RAM PROTECTION FEATURE
FILE REGISTER INSTRUCTIONS
MCU INSTRUCTIONS
Not all instructions support all the
addressing modes given above. Individual
instructions can support different subsets
of these addressing modes.
following
© 2009 Microchip Technology Inc.
addressing
modes
are
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