- Deleted USER_REG1.
- Changed CORE_SPEED_REG name to SWITCH_CORE_SPEED_REG.
- Added a note about the readable STAT_*_MSB/LSB registers to the Statistics Counters section in Chapter 2.
- Added STAT_CORE_SPEED_REG. Also added STAT_CORE_SPEED_REG: 0498 for new register.
- Updated USER_REG_0: 0184 to USER_REG_0: 0134.
- Added the following registers: CONFIGURATION_1588_REG, TX_CONFIGURATION_1588_REG, and RX_CONFIGURATION_1588_REG