EMC0=NOP, EMC3=NOP, EMC2=NOP, EMC1=NOP
External Match Register. The EMR controls the external match pins MATn.0-3 (MAT0.0-3 and MAT1.0-3 respectively).
| EM0 | External Match 0. When a match occurs between the TC and MR0, this bit can either toggle, go low, go high, or do nothing, depending on bits 5:4 of this register. This bit can be driven onto a MATn.0 pin, in a positive-logic manner (0 = low, 1 = high). |
| EM1 | External Match 1. When a match occurs between the TC and MR1, this bit can either toggle, go low, go high, or do nothing, depending on bits 7:6 of this register. This bit can be driven onto a MATn.1 pin, in a positive-logic manner (0 = low, 1 = high). |
| EM2 | External Match 2. When a match occurs between the TC and MR2, this bit can either toggle, go low, go high, or do nothing, depending on bits 9:8 of this register. This bit can be driven onto a MATn.0 pin, in a positive-logic manner (0 = low, 1 = high). |
| EM3 | External Match 3. When a match occurs between the TC and MR3, this bit can either toggle, go low, go high, or do nothing, depending on bits 11:10 of this register. This bit can be driven onto a MATn.0 pin, in a positive-logic manner (0 = low, 1 = high). |
| EMC0 | External Match Control 0. Determines the functionality of External Match 0. 0 (NOP): Do Nothing. 1 (CLEAR): Clear. Clear the corresponding External Match bit/output to 0 (MATn.m pin is LOW if pinned out). 2 (SET): Set. Set the corresponding External Match bit/output to 1 (MATn.m pin is HIGH if pinned out). 3 (TOGGLE): Toggle. Toggle the corresponding External Match bit/output. |
| EMC1 | External Match Control 1. Determines the functionality of External Match 1. 0 (NOP): Do Nothing. 1 (CLEAR): Clear. Clear the corresponding External Match bit/output to 0 (MATn.m pin is LOW if pinned out). 2 (SET): Set. Set the corresponding External Match bit/output to 1 (MATn.m pin is HIGH if pinned out). 3 (TOGGLE): Toggle. Toggle the corresponding External Match bit/output. |
| EMC2 | External Match Control 2. Determines the functionality of External Match 2. 0 (NOP): Do Nothing. 1 (CLEAR): Clear. Clear the corresponding External Match bit/output to 0 (MATn.m pin is LOW if pinned out). 2 (SET): Set. Set the corresponding External Match bit/output to 1 (MATn.m pin is HIGH if pinned out). 3 (TOGGLE): Toggle. Toggle the corresponding External Match bit/output. |
| EMC3 | External Match Control 3. Determines the functionality of External Match 3. 0 (NOP): Do Nothing. 1 (CLEAR): Clear. Clear the corresponding External Match bit/output to 0 (MATn.m pin is LOW if pinned out). 2 (SET): Set. Set the corresponding External Match bit/output to 1 (MATn.m pin is HIGH if pinned out). 3 (TOGGLE): Toggle. Toggle the corresponding External Match bit/output. |
| RESERVED | Reserved, user software should not write ones to reserved bits. The value read from a reserved bit is not defined. |