AN2475 Freescale Semiconductor / Motorola, AN2475 Datasheet - Page 18

• Manufacturer Part Number: AN2475
• Description: Generating a PWM Signal Modulated by an Analog Input Using the MC68HC908QY4 Microcontroller
• Manufacturer: Freescale Semiconductor / Motorola

AN2475/D
TOV1
CH1MAX
; bit position masks
mCH1F:
mCH1IE:
mMS1B:
mMS1A:
mELS1B:
mELS1A:
mTOV1
mCH1MAX
TCNTH:
TCNTL:
TMODH:
TMODL:
TCH0H:
TCH0L:
TCH1H:
TCH1L:
;****
;*
OSCSTAT:
; bit numbers for use in BCLR, BSET, BRCLR, and BRSET
ECGON:
ECGST:
; bit position masks
mECGON:
mECGST:
OSCTRIM:
; bit numbers for use in BCLR, BSET, BRCLR, and BRSET
TRIM7:
TRIM6:
TRIM5:
TRIM4:
TRIM3:
TRIM2:
TRIM1:
TRIM0:
; bit position masks
mTRIM7:
mTRIM6:
mTRIM5:
mTRIM4:
mTRIM3:
mTRIM2:
mTRIM1:
mTRIM0:
TRIMLOC:
;****
;*
ADSCR:
; bit numbers for use in BCLR, BSET, BRCLR, and BRSET
COCO:
AIEN:
ADCO:
18
Oscillator Module (OSC)
Analog-to-Digital Converter (ADC)
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1
0
%10000000
%01000000
%00100000
%00010000
%00001000
%00000100
%00000010
%00000001
$21
$22
$23
$24
$26
$27
$29
$2A
$36
1
0
%00000010
%00000001
$38
7
6
5
4
3
2
1
0
%10000000
%01000000
%00100000
%00010000
%00001000
%00000100
%00000010
%00000001
$FFC0
$3C
7
6
5
Generating a PWM Signal Modulated by an Analog Input
Freescale Semiconductor, Inc.
For More Information On This Product,
Using the MC68HC908QY4 Microcontroller
***************************************************
;Toggle on overflow
;Channel 1 maximum duty cycle
;Channel 1 flag
;Channel 1 interrupt enable
;Mode select bit B
;Mode select bit A
;Edge/level select bit B
;Edge/level select bit A
;Toggle on overflow
;Channel 1 maximum duty cycle
;Timer counter register high
;Timer counter register Low
;Timer counter modulo register high
;Timer counter modulo register low
;Timer channel 0 register high
;Timer channel 0 register low
;Timer channel 1 register high
;Timer channel 1 register low
;Oscillator status register
;External clock generator on
;External clock status
;External clock generator on
;External clock status
;Oscillator trim register
;Internal oscillator trim factor bit 7
;Internal oscillator trim factor bit 6
;Internal oscillator trim factor bit 5
;Internal oscillator trim factor bit 4
;Internal oscillator trim factor bit 3
;Internal oscillator trim factor bit 2
;Internal oscillator trim factor bit 1
;Internal oscillator trim factor bit 0
;Internal oscillator trim factor bit 7
;Internal oscillator trim factor bit 6
;Internal oscillator trim factor bit 5
;Internal oscillator trim factor bit 4
;Internal oscillator trim factor bit 3
;Internal oscillator trim factor bit 2
;Internal oscillator trim factor bit 1
;Internal oscillator trim factor bit 0
;Internal oscillator trim value
;ADC status and control register
;Conversions complete
;ADC interrupt enable bit
;ADC continuous conversion
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MOTOROLA