Datasheet

56F8037/56F8027 Data Sheet, Rev. 8
122 Freescale Semiconductor
• 000 = I/O pin (External) - Use a PSRC0 input pin as PWM source (default)
• 001 = TA0 (Internal) - Use Timer A0 output as PWM source
• 010 = ADC SAMPLE0 (Internal) - Use ADC SAMPLE0 result as PWM source
— If the ADC conversion result in SAMPLE0 is greater than the value programmed into the High Limit
register HLMT0, then PWM0 is set to 0 and PWM1 is set to 1
— If the ADC conversion result in SAMPLE0 is less than the value programmed into the Low Limit
register LLMT0, then PWM0 is set to 1 and PWM1 is set to 0
• 011 = CMPAO (Internal) - Use Comparator A output as PWM source
• 100 = CMPBO (Internal) - Use Comparator B output as PWM source
• 11x = Reserved
• 1x1 = Reserved
6.3.22 Internal Peripheral Source Select Register 1 for Digital-to-Analog
Converters (SIM_IPS1)
See Section 6.3.21 for general information about Internal Peripheral Source Select registers.
Figure 6-26 Internal Peripheral Source Select Register for DACs (SIM_IPS1)
6.3.22.1 Reserved—Bits 15–7
This bit field is reserved. Each bit must be set to 0.
6.3.22.2 Select Input Peripheral Source for SYNC Input to DAC 1
(IPS1_DSYNC1)—Bits 6–4
This field selects the alternate input source signal to feed DAC1 SYNC input.
• 000 = PIT0 (Internal) - Use Programmable Interval Timer 0 Output as DAC SYNC input (default)
• 001 = PIT1 (Internal) - Use Programmable Interval Timer 1 Output as DAC SYNC input
• 010 = PIT2 (Internal) - Use Programmable Interval Timer 2 Output as DAC SYNC input
• 011 = PWM SYNC (Internal) - Use PWM reload synchronization signal as DAC SYNC input
• 100 = TA0 (Internal) - Use Timer A0 output as DAC SYNC input
• 101 = TA1 (Internal) - Use Timer A1 output as DAC SYNC input
• 11x = Reserved
6.3.22.3 Reserved—Bit 3
This bit field is reserved. It must be set to 0.
Base + $19 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Read
0 0 0 0 0 0 0 0 0
IPS1_DSYNC1
0
IPS1_DSYNC0
Write
RESET
0000000000000000