DSPIC30F3012-30I/P Microchip Technology, DSPIC30F3012-30I/P Datasheet - Page 21

• Manufacturer Part Number: DSPIC30F3012-30I/P
• Description: IC DSPIC MCU/DSP 24K 18DIP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F3012-30I/P

• Program Memory Type: FLASH
• Program Memory Size: 24KB (8K x 24)
• Package / Case: 18-DIP (0.300", 7.62mm)
• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 30 MIPs
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 12
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Product: DSCs
• Data Bus Width: 16 bit
• Processor Series: DSPIC30F
• Core: dsPIC
• Maximum Clock Frequency: 30 MHz
• Number Of Programmable I/os: 12
• Data Ram Size: 2 KB
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE4000, DM240002, DM300018, DM330011
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC30F005 - MODULE SCKT DSPIC30F 18DIP/SOICDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLEACICE0202 - ADAPTER MPLABICE 18P 300 MIL
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DSPIC30F3012-30IP

35.4
© 2008 Microchip Technology Inc.
Master Mode Clock Frequency
Section 35. Serial Peripheral Interface (SPI) (Part II)
In the Master mode, the clock provided to the SPI1 module is the instruction cycle (T
clock will then be prescaled by the primary prescaler, specified by PPRE<1:0>
(SPI1CON1<1:0>), and the secondary prescaler, specified by SPRE<2:0> (SPI1CON1<4:2>).
The prescaled instruction clock becomes the serial clock and is provided to external devices
through the SCK1 pin.
Equation 35-1 can be used to calculate the SCK1 clock frequency as a function of the primary
and secondary prescaler settings.
Equation 35-1:
Some sample SPI clock frequencies (in kHz) are shown in Table 35-1.
Table 35-1:
Primary Prescaler Settings
Primary Prescaler Settings
Note 1: SCK1 frequencies are shown in kHz.
Note:
Note:
F
F
Note that the SCK1 signal clock is not free running for normal SPI modes. It will only
run for 8 or 16 pulses when the SPI1BUF is loaded with data. However, it is
continuous for Framed modes.
Not all clock rates are supported. For further information, refer to the SPI module
timing specifications in the specific device data sheet.
CY
CY
= 30 MHz
Sample SCK1 Frequencies
= 5 MHz
SPI Clock Frequency
F
SCK
=
16:1
64:1
16:1
64:1
1:1
4:1
1:1
4:1
Primary Prescaler * Secondary Prescaler
30000
7500
1875
5000
1250
469
313
1:1
78
(1)
F
Secondary Prescaler Settings
CY
15000
3750
2500
938
234
625
156
2:1
39
7500
1875
1250
469
117
313
4:1
78
20
DS70272B-page 35-21
5000
1250
313
833
208
6:1
78
52
13
CY
3750
938
234
625
156
8:1
59
39
10
). This
35