DSPIC30F4011-20I/ML Microchip Technology, DSPIC30F4011-20I/ML Datasheet - Page 157

• Manufacturer Part Number: DSPIC30F4011-20I/ML
• Description: IC DSPIC MCU/DSP 48K 44QFN
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F4011-20I/ML

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 30
• Program Memory Size: 48KB (16K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFN
• Core Frequency: 40MHz
• Embedded Interface Type: CAN, I2C, SPI, UART
• No. Of I/o's: 30
• Flash Memory Size: 48KB
• Supply Voltage Range: 2.5V To 5.5V
• Operating Temperature Range: -40°C To
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44QFN2 - SOCKET TRAN ICE 44QFN/40DIPAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DSPIC30F401120/ML

21.3
The dsPIC30F4011/4012 devices differentiate between
various kinds of Reset:
a)
b)
c)
d)
e)
f)
g)
h)
Different registers are affected in different ways by
various Reset conditions. Most registers are not
affected by a WDT wake-up, since this is viewed as the
resumption of normal operation. Status bits from the
RCON register are set or cleared differently in different
Reset situations, as indicated in
are used in software to determine the nature of the
Reset.
A block diagram of the on-chip Reset circuit is shown in
Figure
A MCLR noise filter is provided in the MCLR Reset
path. The filter detects and ignores small pulses.
Internally generated Resets do not drive MCLR pin low.
FIGURE 21-2:
© 2010 Microchip Technology Inc.
Power-on Reset (POR)
MCLR Reset during normal operation
MCLR Reset during Sleep
Watchdog Timer (WDT) Reset (during normal
operation)
Programmable Brown-out Reset (BOR)
RESET Instruction
Reset caused by trap lock-up (TRAPR)
Reset caused by illegal opcode, or by using an
uninitialized W register as an Address Pointer
(IOPUWR)
MCLR
V
21-2.
Illegal Opcode/
Uninitialized W Register
DD
Reset
Instruction
RESET
Trap Conflict
Brown-out
V
Sleep or Idle
Module
Detect
DD
WDT
Reset
RESET SYSTEM BLOCK DIAGRAM
Rise
BOREN
Glitch Filter
Table
Digital
POR
21-5. These bits
BOR
21.3.1
A power-on event generates an internal POR pulse
when a V
the POR circuit threshold voltage (V
inally 1.85V. The device supply voltage characteristics
must meet specified starting voltage and rise rate
requirements. The POR pulse resets a POR timer and
places the device in the Reset state. The POR also
selects the device clock source identified by the
oscillator Configuration fuses.
The POR circuit inserts a small delay, T
nominally 10 μs and ensures that the device bias
circuits are stable. Furthermore, a user-selected
power-up time-out (T
parameter is based on device Configuration bits and
can be 0 ms (no delay), 4 ms, 16 ms or 64 ms. The total
delay is at device power-up, T
these delays have expired, SYSRST will be negated on
the next leading edge of the Q1 clock and the PC jumps
to the Reset vector.
The timing for the SYSRST signal is shown in
Figure 21-3
dsPIC30F4011/4012
DD
POR: POWER-ON RESET
through
rise is detected. The Reset pulse occurs at
Figure
S
R
PWRT
21-5.
) is applied. The T
Q
POR
DS70135G-page 157
POR
+ T
) which is nom-
POR
SYSRST
PWRT
, which is
. When
PWRT