DSPIC30F2023T-30I/PT Microchip Technology, DSPIC30F2023T-30I/PT Datasheet - Page 51
![12KB, Flash, 512bytes-RAM, 30MIPS, 35I/O, 16-bit Family,nanoWatt 44 TQFP 10x10x1](/photos/6/82/68251/c04-076_pt_sml.jpg)
DSPIC30F2023T-30I/PT
Manufacturer Part Number
DSPIC30F2023T-30I/PT
Description
12KB, Flash, 512bytes-RAM, 30MIPS, 35I/O, 16-bit Family,nanoWatt 44 TQFP 10x10x1
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.AC164335.pdf
(286 pages)
2.DM300023.pdf
(22 pages)
3.DM300023.pdf
(18 pages)
4.DSPIC30F2011-20ISO.pdf
(66 pages)
5.DSPIC30F2011-20IP.pdf
(26 pages)
6.DSPIC30F1010-30ISO.pdf
(26 pages)
7.DSPIC30F1010-30ISO.pdf
(50 pages)
Specifications of DSPIC30F2023T-30I/PT
Core Processor
dsPIC
Core Size
16-Bit
Speed
30 MIPs
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
12KB (4K x 24)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
DSPIC30F2023T-30I/PTTR
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- AC164335 PDF datasheet
- DM300023 PDF datasheet #2
- DM300023 PDF datasheet #3
- DSPIC30F2011-20ISO PDF datasheet #4
- DSPIC30F2011-20IP PDF datasheet #5
- DSPIC30F1010-30ISO PDF datasheet #6
- DSPIC30F1010-30ISO PDF datasheet #7
- Current page: 51 of 286
- Download datasheet (5Mb)
5.2
A Reset is not a true exception, because the interrupt
controller is not involved in the Reset process. The pro-
cessor initializes its registers in response to a Reset,
which forces the PC to zero. The processor then begins
program execution at location 0x000000. A GOTO
instruction is stored in the first program memory loca-
tion, immediately followed by the address target for the
GOTO instruction. The processor executes the GOTO to
the specified address and then begins operation at the
specified target (start) address.
5.2.1
In addition to External Reset and Power-on Reset
(POR), there are 6 sources of error conditions which
‘trap’ to the Reset vector.
• Watchdog Time-out:
• Uninitialized W Register Trap:
• Illegal Instruction Trap:
• Trap Lockout:
© 2006 Microchip Technology Inc.
The watchdog has timed out, indicating that the
processor is no longer executing the correct flow
of code.
An attempt to use an uninitialized W register as
an Address Pointer will cause a Reset.
Attempted execution of any unused opcodes will
result in an illegal instruction trap. Note that a
fetch of an illegal instruction does not result in an
illegal instruction trap if that instruction is flushed
prior to execution due to a flow change.
Occurrence of multiple Trap conditions
simultaneously will cause a Reset.
Reset Sequence
RESET SOURCES
Preliminary
5.3
Traps can be considered as non-maskable interrupts
indicating a software or hardware error, which adhere
to a predefined priority as shown in Figure 5-1. They
are intended to provide the user a means to correct
erroneous operation during debug and when operating
within the application.
Note that many of these trap conditions can only be
detected when they occur. Consequently, the question-
able instruction is allowed to complete prior to trap
exception processing. If the user chooses to recover
from the error, the result of the erroneous action that
caused the trap may have to be corrected.
There are 8 fixed priority levels for traps: Level 8
through Level 15, which implies that the IPL3 is always
set during processing of a trap.
If the user is not currently executing a trap, and he sets
the IPL<3:0> bits to a value of ‘0111’ (Level 7), then all
interrupts are disabled, but traps can still be processed.
5.3.1
The following traps are provided with increasing prior-
ity. However, since all traps can be nested, priority has
little effect.
Math Error Trap:
The Math Error trap executes under the following four
circumstances:
1.
2.
3.
4.
Note:
dsPIC30F1010/202X
Should an attempt be made to divide by zero,
the divide operation will be aborted on a cycle
boundary and the trap taken.
If enabled, a Math Error trap will be taken when
an arithmetic operation on either accumulator A
or B causes an overflow from bit 31 and the
accumulator guard bits are not utilized.
If enabled, a Math Error trap will be taken when
an arithmetic operation on either accumulator A
or B causes a catastrophic overflow from bit 39
and all saturation is disabled.
If the shift amount specified in a shift instruction
is greater than the maximum allowed shift
amount, a trap will occur.
Traps
If the user does not intend to take correc-
tive action in the event of a Trap Error con-
dition, these vectors must be loaded with
the address of a default handler that sim-
ply contains the RESET instruction. If, on
the other hand, one of the vectors contain-
ing an invalid address is called, an
address error trap is generated.
TRAP SOURCES
DS70178C-page 49
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