DM300023 Microchip Technology, DM300023 Datasheet - Page 204

• 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
REGISTER 18-3:
REGISTER 18-4:
DS70178C-page 202
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15-12
bit 11-8
bit 7-4
bit 3-0
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15
bit 14-8
bit 7-0
R/W-0
R/W-0
R/W-0
U-0
—
TSEQ7<3:0>: Tune Sequence value #7 bits
When PWM ROLL<2:0> = 111, this field is used to tune the FRC instead of TUN<3:0>
TSEQ6<3:0>: Tune Sequence value #6 bits
When PWM ROLL<2:0> = 110, this field is used to tune the FRC instead of TUN<3:0>
TSEQ5<3:0>: Tune Sequence value #5 bits
When PWM ROLL<2:0> = 101, this field is used to tune the FRC instead of TUN<3:0>
TSEQ4<3:0>: Tune Sequence value #4 bits
When PWM ROLL<2:0> = 100, this field is used to tune the FRC instead of TUN<3:0>
Unimplemented: Read as ‘0’
When PWM ROLL<2:0> = 111, this field is used to tune the FRC instead of TUN<3:0>
LFSR <14:8>: Most Significant 7 bits of the pseudo random FRC trim value bits
LFSR <7:0>:
R/W-0
R/W-0
R/W-0
R/W-0
OSCTUN2: OSCILLATOR TUNING REGISTER 2
LFSR: LINEAR FEEDBACK SHIFT REGISTER
TSEQ7<3:0>
TSEQ5<3:0>
W = Writable bit
‘1’ = Bit is set
W = Writable bit
‘1’ = Bit is set
Least Significant 8 bits of the pseudo random FRC trim value bits
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
Preliminary
LFSR<7:0>
U = Unimplemented bit, read as ‘0’
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
‘0’ = Bit is cleared
LFSR<14:8>
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
TSEQ6<3:0>
TSEQ4<3:0>
© 2006 Microchip Technology Inc.
x = Bit is unknown
x = Bit is unknown
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
bit 8
bit 0
bit 8
bit 0