Functional safety requirements for application software
Safety Manual for MPC5777M, Rev. 1.1
NXP Semiconductors 43
psi5_0 RGM_PRST[111] Disable mode is the default state after module reset is
released (GCR[GLOBAL_DISABLE_REQ]rst = 1). Also, any
channel is individually disabled (PSI5_CH_Enrst=0). In this
mode the RX, TX, common time base counters are disabled
for any operation
NO, after reset RX,TX, common time
base are disabled
psi5_1 RGM_PRST[239]
psi5_s RGM_PRST[162]
sent_0 RGM_PRST[104] After reset, the SENT module comes up in the disabled state.
All channel enable bits (EN_CHxrst=0) and the global enable
bit (SENT_ENrst=0) are set to 0 and the user software must
program the SENT module parameters correctly before
enabling it
NO, no transmission after the unwanted
reset
sent_1 RGM_PRST[232]
dma_ch_mux RGM_PRST[36] After reset all DMA channels are in Disabled Mode and no
DMA transfer is performed. SW might need to check
periodically this bit as no transfer can result in stale data
(depends on the usage of DMA at application level).
YES, application dependent
flexray_0 RGM_PRST[107] module enable MENrst=0; the application requests the CC to
leave the Disabled Mode by writing 1 to this bit Before leaving
the Disabled Mode, the application must configure the SCM,
SBFF, CHB, CHA, TMODE, BITRATE values; once enabled
the module cannot be disabled by SW (i.e. write 0 not allowed)
NO, after reset no communication is
performed on the bus
flexray_1 RGM_PRST[235]
sipi_0 RGM_PRST[11] SIPIMCR[MOEN] = 0 after reset.
After reset SIPI is in disable mode and all activities on SIPI Tx
and Rx ports are immediately stopped
NO, after reset all activity on SIPI ports
are stopped
Table 1. Effects of reset (continued)
Receiving module Software control Detection Software action required?
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