MXSIGDM Microchip Technology, MXSIGDM Datasheet - Page 40

• Manufacturer Part Number: MXSIGDM
• Description: BOARD DEMO PICTAIL MIXED SIGNAL
• Manufacturer: Microchip Technology
• Series: PICtail™r

Specifications of MXSIGDM

• Main Purpose: Mixed Signal for MCU: ADC, DAC,
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: TX132x,MCP330x,320x,494x,3221,3201,1525,1541
• Primary Attributes: 3 ADCs, 3 DACs, 2 Voltage References, 5V LDO
• Secondary Attributes: DIP Switches, 2 LEDs, PIC16F767
• Processor To Be Evaluated: TC132x, MCP330x, MCP320x, MCP492x, MCP3221, MCP3021, MCP15x
• Interface Type: I2C, SPI
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

;
;
;
;
F_Low_table
F_High_table
;*************************************************************************
;
;
;
; ToneLength = desired_length / (1/Freq_high)
;
ToneLength_table
DS51523A-page 36
addwf
retlw .59 ;945.5
retlw .80 ;697.3
retlw .80 ;697.3
retlw .80 ;697.3
retlw .72 ;774.7
retlw .72 ;774.7
retlw .72 ;774.7
retlw .65 ;858.2
retlw .65 ;858.2
retlw .65 ;858.2
retlw .80 ;697.3
retlw .72 ;774.7
retlw .65 ;858.2
retlw .59 ;945.5
retlw .59 ;945.5
retlw .59 ;945.5
addwf
retlw .42 ;1328.1
retlw .46 ;1212.6
retlw .42 ;1328.1
retlw .38 ;1467.9
retlw .46 ;1212.6
retlw .42 ;1328.1
retlw .38 ;1467.9
retlw .46 ;1212.6
retlw .42 ;1328.1
retlw .38 ;1467.9
retlw .34 ;1640.6
retlw .34 ;1640.6
retlw .34 ;1640.6
retlw .34 ;1640.6
retlw .46 ;1212.6
retlw .38 ;1467.9
endif
if
addwf
retlw .200
retlw .181
retlw .200
retlw .222
retlw .181
retlw .200
Fosc = 3.57MHz
X = Fosc / ( 4 * #steps * Ftone)
;X
;X
Tone Length Calculation
How many high cycles does it take to meet the desired timeout?
(ToneLength_150)
Actual
Actual
PCL,F
PCL,F
PCL,F
Desired
Desired
#steps = 16
941
697
697
697
770
770
770
852
852
852
697
770
852
941
941
941
1336
1209
1336
1477
1209
1336
1477
1209
1336
1477
1633
1633
1633
1633
1209
1477
%Error
.47%
.04%
.04%
.04%
.72%
.72%
.72%
.65%
.65%
.65%
.04%
.72%
.65%
.47%
.47%
.47%
%Error
.59%
.30%
.59%
.61%
.30%
.59%
.61%
.30%
.59%
.61%
.47%
.47%
.47%
.47%
.30%
.61%
 2004 Microchip Technology Inc.