DSPIC33FJ256GP710A-H/PT Microchip Technology, DSPIC33FJ256GP710A-H/PT Datasheet - Page 69
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DSPIC33FJ256GP710A-H/PT
Manufacturer Part Number
DSPIC33FJ256GP710A-H/PT
Description
16 Bit MCU/DSP 100LD 40MIPS 256KB FLASH 100 TQFP 12x12x1mm TRAY
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr
Datasheet
1.DSPIC33FJ64GP206A-IMR.pdf
(338 pages)
Specifications of DSPIC33FJ256GP710A-H/PT
Core Processor
dsPIC
Core Size
16-Bit
Speed
40 MIPs
Connectivity
CAN, I²C, IrDA, LIN, SPI, UART/USART
Peripherals
AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
85
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
30K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 32x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 140°C
Package / Case
100-TQFP
Processor Series
dsPIC33F
Core
dsPIC
Data Bus Width
16 bit
Interface Type
SPI, I2C, UART, JTAG
Number Of Programmable I/os
35
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 140 C
Mounting Style
SMD/SMT
Development Tools By Supplier
MPLAB IDE Software
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 13 Channel
A/d Bit Size
10 bit
A/d Channels Available
13
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:
DSPIC33FJ256GP710A-H/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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4.2.7
In addition to its use as a working register, the W15
register in the dsPIC33FJXXXGPX06A/X08A/X10A
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 4-6. 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. The stack error trap will occur on a
subsequent push operation. Thus, for example, if it is
desirable to cause a stack error trap when the stack
grows beyond address 0x2000 in RAM, initialize the
SPLIM with the value 0x1FFE.
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 Special Function Register (SFR)
space.
A write to the SPLIM register should not be immediately
followed by an indirect read operation using W15.
FIGURE 4-6:
2009 Microchip Technology Inc.
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
dsPIC33FJXXXGPX06A/X08A/X10A
0
POP : [--W15]
PUSH : [W15++]
W15 (before CALL)
W15 (after CALL)
Preliminary
4.2.8
The dsPIC33F product family supports Data RAM
protection features which 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 in Table 4-35 form the basis of
the addressing modes optimized to support the specific
features of individual instructions. The addressing
modes provided in the MAC class of instructions are
somewhat different from those in the 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 3-operand MCU instructions are of the form:
Operand 3 = Operand 1 <function> Operand 2
where Operand 1 is always a working register (i.e., 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 may support different subsets
of these addressing modes.
following
addressing
DS70593B-page 69
modes
are
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