DSPIC30F2020-30I/MM Microchip Technology, DSPIC30F2020-30I/MM Datasheet - Page 208

• Manufacturer Part Number: DSPIC30F2020-30I/MM
• Description: IC DSPIC MCU/DSP 12K 28QFN
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F2020-30I/MM

• 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: 21
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-QFN
• Core Frequency: 15MHz
• Core Supply Voltage: 3.3V
• Embedded Interface Type: I2C, SPI, UART
• No. Of I/o's: 21
• Flash Memory Size: 12KB
• Supply Voltage Range: 3V To 3.6V
• Package: 28QFN-S EP
• Device Core: dsPIC
• Family Name: dsPIC30
• Maximum Speed: 30 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 21
• Interface Type: I2C/SPI/UART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM300023 - KIT DEMO DSPICDEM SMPS BUCKAC164322 - MODULE SOCKET MPLAB PM3 28/44QFNDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

dsPIC30F1010/202X
18.3.1
While coming out of a Power-on Reset, the device
selects its clock source based on:
a)
b)
c)
The selection is as shown in Table 18-1.
TABLE 18-1:
18.3.2
In order to ensure that a crystal oscillator (or ceramic
resonator) has started and stabilized, an Oscillator
Start-up Timer is included. It is a simple 10-bit counter
that counts 1024 T
oscillator clock to the rest of the system. The time-out
period is designated as T
every time the oscillator has to restart (i.e., on POR and
wake-up from Sleep). The Oscillator Start-up Timer is
applied to the HS Oscillator mode (upon
wake-up from Sleep and POR) for the primary
oscillator.
18.3.3
The PLL multiplies the clock, which is generated by the
primary oscillator. The PLL is selectable to have a gain
of x32 only. Input and output frequency ranges are
summarized in Table 18-2.
DS70178C-page 206
HS w/PLL 32x
FRC w/PLL 32x
FRC w/PLL 32x
EC w/PLL 32x
EC w/PLL 32x
EC
EC
HS
FRC
FRC
Note 1:
(2)
(2)
(2)
FNOSC<1:0> Configuration bits that select one
of three oscillator groups (HS, EC or FRC)
POSCMD1<1:0> Configuration bits that select
the Primary Oscillator Mode
OSCIOFNC selects if the OSC2 pin is an I/O or
clock output
(2)
(2)
2:
Oscillator
Mode
CLKO is not recommended to drive external circuits.
This mode is not recommended for some applications; disabling 32x PLL will not allow operation of
high-speed ADC and PWM.
INITIAL CLOCK SOURCE
SELECTION
OSCILLATOR START-UP TIMER
(OST)
PHASE LOCKED LOOP (PLL)
CONFIGURATION BIT VALUES FOR CLOCK SELECTION
OSC
OST
cycles before releasing the
. The T
Internal RC
Internal RC
Oscillator
External
External
External
Source
PLL
PLL
PLL
PLL
PLL
OST
time is involved
FNOSC<1:0>
Bit 1
1
0
0
1
1
1
1
1
0
0
Preliminary
Bit 0
1
1
1
1
1
0
0
0
0
0
POSCMD<1:0>
Bit 1
1
1
1
0
0
0
0
1
1
1
TABLE 18-2:
The PLL features a lock output, which is asserted when
the PLL enters a phase locked state. Should the loop
fall out of lock (e.g., due to noise), the lock signal will be
rescinded. The state of this signal is reflected in the
read-only LOCK bit in the OSCCON register.
6.4 MHz
9.7 MHz
14.55 MHz
Bit 0
F
0
1
1
0
0
0
0
0
1
1
IN
OSCIOFNC
PLL FREQUENCY RANGE
N/A
N/A
1
0
1
0
1
0
0
1
Multiplier
© 2006 Microchip Technology Inc.
PLL
x32
x32
x32
Function
CLKO
CLKO
OSC2
CLKO
CLKO
CLKO
CLKO
I/O
I/O
I/O
I/O
(1)
(1)
205 MHz
310 MHz
466 MHz
F
OUT
Function
OSC1
CLKI
CLKI
CLKI
CLKI
CLKI
CLKI
I/O
I/O
I/O
I/O