Does anyone have any references for setting the HRCW for MPC chips, hopefully MPC8xx. The JTAGKey reference manual from Amontec mentions the HRCW as being essential for some MPC chips. The most I could find on this specification comes from a manual for MSC8101 and a chinese blog
The HRCW defines many of the attributes of the MSC8101, including the location of the PowerPC internal memory map (ISB) and clocking options (MODCK_H). The fields in the HRCW are distributed to various register fields in the MSC8101 to define initial operation. Therefore, setting up the HRCW correctly is critical in getting the MSC8101 operational. Software debuggers must allow you to set various fields in the configuration word before the application is downloaded to the MSC8101 target board.