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TVME8300 User Manual Issue 1.4
Page 28 of 70
4.2.2 PIC Register Access
The PIC Registers are part of the MPC8245 Embedded Utility Memory Block (EUMB).
The EUMB base address is set in the EUMBBAR Register.
For the TVME8300 memory map the EUMB base address is set to 0xFCF0_0000.
4.2.3 PIC Register Settings
4.2.3.1 Global
Configuration Register (GCR)
Offset from EUMBBAR: 0x4_1020
The mode bit in the GCR must be set for PIC mixed mode operation.
4.2.3.2 Interrupt
Configuration Register (ICR)
Offset from EUMBBAR: 0x4_1030
The ICR clock ratio field should be set to 0x2 for optimized interrupt performance.
The ICR SIE bit must be set to enable Serial Interrupt Mode.
4.2.3.3
Serial Interrupt Vector / Priority Registers (SVPR)
The polarity and sense bits in the SVPRs must be configured accordingly to the PIC Serial Interrupt
Assignment table.
4.2.4 PIC Register Programming
The PIC Programming Guidelines from the MPC8245 manual should be followed.