ZHCSV76A June 2022 – March 2024 TMS570LC4357-SEP
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
The MasterID associated with each master port on the Peripheral Interconnect Subsystem contains a 4-bit value. The MasterID is passed along with the address and control signals to three PCR modules. PCR decodes the address and control signals to select the peripheral. In addition, it decodes this 4-bit MasterID value to perform memory protection. With 4-bit of MasterID, it allows the PCR to distinguish among 16 different masters to allow or disallow access to a given peripheral. Associated with each peripheral a 16-bit MasterID access protection register is defined. Each bit grants or denies the permission of the corresponding binary coded decimal MasterID. For example, if bit 5 of the access permission register is set, it grants MasterID 5 to access the peripheral. If bit 7 is clear, it denies MasterID 7 to access the peripheral. Figure 7-10 shows the MasterID filtering scheme. Table 7-27 lists the MasterID of each master, which can access the PCRx.