24.3 PTG Step Commands

Table 24-1. PTG Step Command Format and Description
Step Command Byte
STEPx[7:0]
CMD[3:0]OPTION[3:0]
bit 7bit 4bit 3bit 0
Table 24-2. PTG Command Options
bit 7-4Step CommandCMD[3:0]Command Description
PTGCTRL0000Execute the control command as described by the OPTION[3:0] bits.
PTGADD0001Add contents of the PTGADJ register to the target register as described by the OPTION[3:0] bits.
PTGCOPYCopy contents of the PTGHOLD register to the target register as described by the OPTION[3:0] bits.
PTGSTRB001xCopy the values contained in the bits, CMD[0]:OPTION[3:0], to the strobe output bits[4:0].
PTGWHI0100Wait for a low-to-high edge input from a selected PTG trigger input as described by the OPTION[3:0] bits.
PTGWLO0101Wait for a high-to-low edge input from a selected PTG trigger input as described by the OPTION[3:0] bits.
0110Reserved; do not use.(1)
PTGIRQ0111Generate individual interrupt request as described by the OPTION[3:0] bits.
PTGTRIG100xGenerate individual trigger output as described by the bits, CMD[0]:OPTION[3:0].
PTGJMP101xCopy the values contained in the bits, CMD[0]:OPTION[3:0], to the PTGQPTR register and jump to that Step queue.
PTGJMPC0110xPTGC0 = PTGC0LIM: Increment the PTGQPTR register.
PTGC0 ≠ PTGC0LIM: Increment Counter 0 (PTGC0) and copy the values contained in the bits, CMD[0]:OPTION[3:0], to the PTGQPTR register, and jump to that Step queue.
PTGJMPC1111xPTGC1 = PTGC1LIM: Increment the PTGQPTR register.
PTGC1 ≠ PTGC1LIM: Increment Counter 1 (PTGC1) and copy the values contained in the bits, CMD[0]:OPTION[3:0], to the PTGQPTR register, and jump to that Step queue.
bit 3-0PTGCTRL(1)0000NOP.
0001Reserved; do not use.
0010Disable Step delay timer (PTGSD).
0011Reserved; do not use.
0100Reserved; do not use.
0101Reserved; do not use.
0110Enable Step delay timer (PTGSD).
0111Reserved; do not use.
1000Start and wait for the PTG Timer0 to match the PTGT0LIM register.
1001Start and wait for the PTG Timer1 to match the PTGT1LIM register.
1010

Wait for the software trigger (level, PTGSWT = 1).

1011Wait for the software trigger (positive edge, PTGSWT = 0 to 1).
1100Copy the PTGC0LIM register contents to the strobe output.
1101Copy the PTGC1LIM register contents to the strobe output.
1110Copy the PTGL0 register contents to the strobe output.
1111Generate the triggers indicated in the PTGBTE register.
PTGADD(1)0000Add the PTGADJ register contents to the PTGC0LIM register.
0001Add the PTGADJ register contents to the PTGC1LIM register.
0010Add the PTGADJ register contents to the PTGT0LIM register.
0011Add the PTGADJ register contents to the PTGT1LIM register.
0100Add the PTGADJ register contents to the PTGSDLIM register.
0101Add the PTGADJ register contents to the PTGL0 register.
0110Reserved; do not use.
0111Reserved; do not use.
PTGCOPY(1)1000Copy the PTGHOLD register contents to the PTGC0LIM register.
1001Copy the PTGHOLD register contents to the PTGC1LIM register.
1010Copy the PTGHOLD register contents to the PTGT0LIM register.
1011Copy the PTGHOLD register contents to the PTGT1LIM register.
1100Copy the PTGHOLD register contents to the PTGSDLIM register.
1101Copy the PTGHOLD register contents to the PTGL0 register.
1110Reserved; do not use.
1111Reserved; do not use.
PTGWHI(1) or PTGWLO(1)0000PTGI0 (see Table 24-3 for input assignments).

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1111PTGI15 (see Table 24-3 for input assignments).
PTGIRQ(1)0000Generate PTG Interrupt 0.

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0111Generate PTG Interrupt 7.
1000Reserved; do not use.

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1111Reserved; do not use.
PTGTRIG0000PTGO0 (see Table 24-4 for input assignments).
0001PTGO1 (see Table 24-4 for input assignments).

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1110PTGO30 (see Table 24-4 for input assignments).
1111PTGO31 (see Table 24-4 for input assignments).
PTGWHI(1) or PTGWLO(1)0000PTGI0 (see specific device data sheet for interrupt assignments).

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1111PTGI15 (see specific device data sheet for interrupt assignments).
PTGIRQ(1)0000Generate PTG Interrupt 0 (see specific device data sheet for interrupt assignments).

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0111Generate PTG Interrupt 7 (see specific device data sheet for interrupt assignments).
1000Reserved; do not use.

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1111Reserved; do not use.
PTGTRIG0000PTGO0 (see specific device data sheet for interrupt assignments).
0001PTGO1 (see specific device data sheet for interrupt assignments).
Note:
  1. All reserved commands or options will execute, but they do not have any affect (i.e., execute as a NOP instruction).
Table 24-3. PTG Input Descriptions
PTG Input NumberPTG Input Description
PTG Trigger Input 0Trigger Input from PWM1 ADC Trigger 2
PTG Trigger Input 1Trigger Input from PWM2 ADC Trigger 2
PTG Trigger Input 2Trigger Input from PWM3 ADC Trigger 2
PTG Trigger Input 3Trigger Input from PWM4 ADC Trigger 2
PTG Trigger Input 4Reserved
PTG Trigger Input 5Trigger Input from PWM6 ADC Trigger 2
PTG Trigger Input 6Reserved
PTG Trigger Input 7Trigger Input from SCCP4 OCMP Output
PTG Trigger Input 8Trigger Input from SCCP5 OCMP Output
PTG Trigger Input 9Trigger Input from Comparator 1
PTG Trigger Input 10Trigger Input from Comparator 2
PTG Trigger Input 11Trigger Input from Comparator 3
PTG Trigger Input 12Trigger Input from CLC1
PTG Trigger Input 13Trigger Input ADC Done Group Interrupt
PTG Trigger Input 14Trigger Input from CLC2
PTG Trigger Input 15Trigger Input from INT2 PPS
Table 24-4. PTG Output Descriptions
PTG Output NumberPTG Output Description
PTGO0 to PTGO11Reserved
PTGO12ADC TRGSRC[30]
PTGO13 to PTGO23Reserved
PTGO24PPS Output RP46
PTGO25PPS Output RP47
PTGO26PPS Input RP6
PTGO27PPS Input RP7
PTGO28 to PTGO31Reserved