Cepirtwprd Register; Cepistatus Register; Memprot Register; Cepirtwprd Register Field Descriptions - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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17.11.39 CEPIRTWPRD Register

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

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

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

External Peripheral Interface (EPI)

Figure 17-66. CEPIRTWPRD Register

Table 17-52. CEPIRTWPRD Register Field Descriptions

When EPIRTWCNT value becomes equal to value into this field, TIMEOUT occurs and the

TIMEOUT status flag in CEPISTATUS register gets set. Program this field based on the application

which needs dedicated access to external device from the control subsystem via EPI.

Note: Do not try to program this field when the GRAB bit in the CEPIRTWCFG register is set to '1'.

Program this field first and then set the GRAB bit.

Figure 17-67. CEPISTATUS Register

Table 17-53. CEPISTATUS Register Field Descriptions

Status bit for Memory Protection violation by control subsystem (C28x-CPU/C28x-DMA).

Memory protection violation has not occurred.

Memory protection violation occurred. C28x-CPU or C28x-DMA tried to write into external memory

space which was protected. An interrupt has been generated to C28x CPU.

Status bit for RTW time out. Writing a '1' to this field clears the status to '0'

TIMEOUT has not occurred.

C28x software didn't release the GRAB with in programmed time period hence TIMEOUT has

happened and an interrupt has been generated to C28x CPU.

Figure 17-68. MEMPROT Register

SPRUHE8E – October 2012 – Revised November 2019

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