Safety Control Registers; Control Subsystem Clock Disable (Cclkoff) Register; M3 Configuration Write Allow (Mwrallow) Register; M3 Configuration Lock (Mlock) Register - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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System Control Registers

Figure 1-87. Control Subsystem Clock Disable (CCLKOFF) Register

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 1-98. Control Subsystem Clock Disable (CCLKOFF) Register Field Descriptions

1.13.6 Safety Control Registers

Figure 1-88. M3 Configuration Write Allow (MWRALLOW) Register

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 1-99. M3 Configuration Write Allow (MWRALLOW) Register Field Descriptions

0xA5A5A5A5 Protected register writes allowed

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

System Control and Interrupts

C28 CPU CLKIN Disable

This bit decides if the C28 CPU gets a clock or not.

C28 CPU CLKIN is on and is the same frequency as PLLSYSCLK.

C28 CPU CLKIN is turned off.

M3 Write Allow Bits

These bits when set to "0xA5A5A5A5" enable the write to all other protected mode register

writes on the M3 subsystem.

This register can be written to only by the M3 in privilege mode.

Protected register writes disabled

Figure 1-89. M3 Configuration Lock (MLOCK) Register

SPRUHE8E – October 2012 – Revised November 2019

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