+ * <tr>\r
+ * <td>MAG_T1_CLOCK</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>Mask for the magnetic card reader's CLOCK line for the reader's track 1 output.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_T1_DATA</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>Mask for the magnetic card reader's DATA line for the reader's track 1 output.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_T2_CLOCK</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>Mask for the magnetic card reader's CLOCK line for the reader's track 2 output.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_T2_DATA</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>Mask for the magnetic card reader's DATA line for the reader's track 2 output.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_T3_CLOCK</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>Mask for the magnetic card reader's CLOCK line for the reader's track 3 output.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_T3_DATA</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>Mask for the magnetic card reader's DATA line for the reader's track 3 output.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_CARDPRESENT</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>Mask for the magnetic card reader's card detection output.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_PIN</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>PIN register that the magnetic card reader device is attached to.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_PORT</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>PORT register that the magnetic card reader device is attached to.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>MAG_DDR</td>\r
+ * <td>Makefile CDEFS</td>\r
+ * <td>DDR register that the magnetic card reader device is attached to.</td>\r
+ * </tr>\r