DM300023 Microchip Technology, DM300023 Datasheet - Page 150

• Manufacturer Part Number: DM300023
• Description: KIT DEMO DSPICDEM SMPS BUCK
• Manufacturer: Microchip Technology
• Series: dsPIC™r

Specifications of DM300023

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 2, Non-Isolated
• Voltage - Input: 7 ~ 15V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: dsPIC30F2020
• Processor To Be Evaluated: dsPIC30F202x/1010
• Interface Type: RS-232
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Output: -
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

dsPIC30F1010/202X
FIGURE 13-5:
FIGURE 13-6:
EQUATION 13-1:
TABLE 13-1:
DS70178C-page 148
Primary Prescaler Settings
Primary Prescaler Settings
Note:
SCKx frequencies shown in kHz.
F
F
CY
CY
SAMPLE SCKx FREQUENCIES
= 40 MHz
= 5 MHz
SPI SLAVE, FRAME MASTER CONNECTION DIAGRAM
SPI SLAVE, FRAME SLAVE CONNECTION DIAGRAM
RELATIONSHIP BETWEEN DEVICE AND SPI CLOCK SPEED
(SPI Master, Frame Slave)
(SPI Slave, Frame Slave)
dsPIC33F
dsPIC33F
F
SCK
16:1
64:1
16:1
64:1
=
4:1
4:1
1:1
1:1
Primary Prescaler * Secondary Prescaler
SDOx
SCKx
SDOx
SCKx
SDIx
SDIx
SSx
SSx
Invalid
7500
1875
5000
1250
Preliminary
469
313
1:1
78
Serial Clock
Frame Sync
Pulse
Serial Clock
Frame Sync
Pulse
F
CY
Invalid
937.5
234.4
3750
2500
625
156
Secondary Prescaler Settings
2:1
39
SDIx
SDOx
SCKx
SSx
SDIx
SDOx
SCKx
SSx
PROCESSOR 2
PROCESSOR 2
7500
1875
1250
469
117
313
4:1
78
20
© 2006 Microchip Technology Inc.
312.5
5000
1250
78.1
833
208
6:1
52
13
937.5
234.4
3750
58.6
625
156
8:1
39
10