DSPIC30F2020-20E/MM Microchip Technology, DSPIC30F2020-20E/MM Datasheet - Page 11

• Manufacturer Part Number: DSPIC30F2020-20E/MM
• Description: 12KB, Flash, 512bytes-RAM, 30MIPS, 21I/O, 16-bit Family,nanoWatt 28 QFN-S 6x6mm
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F2020-20E/MM

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 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 ~ 125°C
• Package / Case: 28-QFN
• Package: 28QFN-S EP
• Device Core: dsPIC
• Family Name: dsPIC30
• Maximum Speed: 20 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

Figure 35-3:
© 2008 Microchip Technology Inc.
Note 1: If there are no pending transmissions, SPI1TXB is transferred to SPI1SR as soon as the user application writes to
SPIRBF
(SPI1STAT<0>)
SPITBF
SCK1
(CKP = 0
CKE = 0)
SCK1
(CKP = 1
CKE = 0)
SCK1
(CKP = 0
CKE = 1)
SCK1
(CKP = 1
CKE = 1)
SDO1
(CKE = 0)
SDO1
(CKE = 1)
SDI1
(SMP = 0)
Input
Sample
(SMP = 0)
SDI1
(SMP = 1)
Input
Sample
(SMP = 1)
SPI1IF
User application
writes to
SPI1BUF
2: Four SPI1 Clock modes are shown to demonstrate CKP (SPI1CON1<6>) and CKE (SPI1CON1<8>) bit functionality
3: SDI1 and input sample are shown for two different values of the SMP (SPI1CON1<9>) bit for demonstration purposes
4: Operation for 8-bit mode is shown. Except for the number of clock pulses, the 16-bit mode is similar.
SPI1BUF.
only. Only one of the four modes can be chosen for operation.
only. Only one of the two configurations of the SMP bit can be chosen during operation.
(2)
(2)
(2)
(2)
(3)
(3)
(3)
(3)
SPI1 Master Mode Timing
Section 35. Serial Peripheral Interface (SPI) (Part II)
bit 7
bit 7
bit 7
SPI1TXB to SPI1SR
bit 7
User application
reads SPI1BUF
bit 6
bit 6
(1)
bit 5
bit 5
bit 4
bit 4
bit 3
1 instruction cycle latency to set
SPI1IF flag bit
bit 3
User application writes new
data during transmission
bit 2
bit 2
SPI1SR moved
into SPI1RXB
bit 1
bit 1
bit 0
bit 0
bit 0
bit 0
DS70272B-page 35-11
4 Clock
modes
(clock
output at
the SCK1
pin in
Master
mode)
Two modes
available
for SMP
control
bit
(4)
35