7). 196Mx's ROM type CPU In 196Mx's ROM type CPU, some addresses have been moved. CPU register name Old address EasyPack support name New address CPU:P3_REG: 1FFCH -------> EP:P3_REG: FFFCH CPU:P4_REG: 1FFDH -------> EP:P4_REG: FFFDH CPU:P3_PIN: 1FFEH -------> EP:P3_PIN: FFFEH CPU:P4_PIN: 1FFFH -------> EP:P4_PIN: FFFFH CPU:P5_REG: 1FF5H -------> EP:P5_REG: FFF5H CPU:P5_PIN: 1FF7H -------> EP:P5_PIN: FFF7H CPU:P5_MODE: 1FF1H -------> EP:P5_MODE: FFF1H CPU:P5_DIR: 1FF3H -------> EP:P5_DIR: FFF3H For examples: When user wants to write a data to the CPU:P3_REG(1FFCH), user shall modify his/her program: to write the data to EP:P3_REG(FFFCH) 8) About P5_MODE,P5_DIR The register EP:P5_MODE(FFF1H) and EP:P5_DIR(FFF3H) do not function really. These values are only for show. In user's program, User shall not change the registers: CPU:P5_MODE(1FF1) and CPU:P5_DIR (1FF3H). 9) About WDE bit in the CCR1 The WDE(Watch timer enable) is forced to function: "1 = enabled first time it is cleared"