DSPIC33FJ16GP304T-I/ML Microchip Technology, DSPIC33FJ16GP304T-I/ML Datasheet - Page 117
![16-bit DSC, 16KB Flash,40 MIPS,nanoWatt 44 QFN 8x8x0.9mm T/R](/photos/6/81/68122/150-44-qfn_sml.jpg)
DSPIC33FJ16GP304T-I/ML
Manufacturer Part Number
DSPIC33FJ16GP304T-I/ML
Description
16-bit DSC, 16KB Flash,40 MIPS,nanoWatt 44 QFN 8x8x0.9mm T/R
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr
Datasheets
1.DSPIC33FJ12MC201-ISO.pdf
(14 pages)
2.DSPIC33FJ16GP304-IPT.pdf
(284 pages)
3.DSPIC33FJ16GP304-IPT.pdf
(8 pages)
4.DSPIC33FJ16GP304-IPT.pdf
(14 pages)
Specifications of DSPIC33FJ16GP304T-I/ML
Core Processor
dsPIC
Core Size
16-Bit
Speed
40 MIPs
Connectivity
I²C, IrDA, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 13x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DV164033 - KIT START EXPLORER 16 MPLAB ICD2DM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
DSPIC33FJ16GP304T-I/MLTR
- DSPIC33FJ12MC201-ISO PDF datasheet
- DSPIC33FJ16GP304-IPT PDF datasheet #2
- DSPIC33FJ16GP304-IPT PDF datasheet #3
- DSPIC33FJ16GP304-IPT PDF datasheet #4
- Current page: 117 of 284
- Download datasheet (4Mb)
TABLE 10-2:
10.6.3
Because peripheral remapping can be changed during
run time, some restrictions on peripheral remapping
are needed to prevent accidental configuration
changes. dsPIC33F devices include three features to
prevent alterations to the peripheral map:
• Control register lock sequence
• Continuous state monitoring
• Configuration bit pin select lock
10.6.3.1
Under normal operation, writes to the RPINRx and
RPORx registers are not allowed. Attempted writes
appear to execute normally, but the contents of the
registers remain unchanged. To change these
registers, they must be unlocked in hardware. The
register lock is controlled by the IOLOCK bit
(OSCCON<6>). Setting IOLOCK prevents writes to the
control registers; clearing IOLOCK allows writes.
To set or clear IOLOCK, a specific command sequence
must be executed:
1.
2.
3.
© 2011 Microchip Technology Inc.
NULL
U1TX
U1RTS
SDO1
SCK1OUT
SS1OUT
OC1
OC2
dsPIC33FJ32GP202/204 and dsPIC33FJ16GP304
Note:
Write 0x46 to OSCCON<7:0>.
Write 0x57 to OSCCON<7:0>.
Clear (or set) IOLOCK as a single operation.
Function
CONTROLLING CONFIGURATION
CHANGES
MPLAB
language functions for unlocking the
OSCCON register:
See MPLAB
information.
Control Register Lock
__builtin_write_OSCCONL(value)
__builtin_write_OSCCONH(value)
OUTPUT SELECTION FOR REMAPPABLE PIN (RPn)
®
C30
®
IDE Help for more
provides
RPnR<4:0>
00000
00011
00100
00111
01000
01001
10010
10011
built-in
C
RPn tied to default port pin
RPn tied to UART1 Transmit
RPn tied to UART1 Ready To Send
RPn tied to SPI1 Data Output
RPn tied to SPI1 Clock Output
RPn tied to SPI1 Slave Select Output
RPn tied to Output Compare 1
RPn tied to Output Compare 2
Unlike the similar sequence with the oscillator’s LOCK
bit, IOLOCK remains in one state until changed. This
allows all of the peripheral pin selects to be configured
with a single unlock sequence followed by an update to
all control registers, then locked with a second lock
sequence.
10.6.3.2
In addition to being protected from direct writes, the
contents of the RPINRx and RPORx registers are
constantly monitored in hardware by shadow registers.
If an unexpected change in any of the registers occurs
(such as cell disturbances caused by ESD or other
external events), a configuration mismatch Reset will
be triggered.
10.6.3.3
As an additional level of safety, the device can be
configured to prevent more than one write session to
the RPINRx and RPORx registers. The IOL1WAY
configuration bit (FOSC<5>) blocks the IOLOCK bit
from being cleared after it has been set once.
In the default (unprogrammed) state, IOL1WAY is set,
restricting users to one write session. Programming
IOL1WAY allows user applications unlimited access
(with the proper use of the unlock sequence) to the
peripheral pin select registers.
Continuous State Monitoring
Configuration Bit Pin Select Lock
Output Name
DS70290G-page 117
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