New and inherited anomalies

nRF52805 Revision 2 Errata

The following anomalies are present in Revision 2 of the nRF52805 SoC.

Table 1. New and inherited anomalies
ID Module Description Inherited from Revision 1
15 POWER RAM[x].POWERSET/CLR read as zero X
20 RTC Register values are invalid X
31 CLOCK Calibration values are not correctly loaded from FICR at reset X
36 CLOCK Some registers are not reset when expected X
66 TEMP Linearity specification not met with default settings X
68 CLOCK EVENTS_HFCLKSTARTED can be generated before HFCLK is stable X
77 CLOCK RC oscillator is not calibrated when first started X
78 TIMER High current consumption when using timer STOP task only X
81 GPIO PIN_CNF is not retained when in debug interface mode X
83 TWIS STOPPED event occurs twice if the STOP task is triggered during a transaction X
88 WDT Increased current consumption when configured to pause in System ON idle X
136 System Bits in RESETREAS are set when they should not be X
155 GPIOTE IN event may occur more than once on input edge X
156 GPIOTE Some CLR tasks give unintentional behavior X
173 GPIO Writes to LATCH register take several CPU cycles to take effect X
176 System Flash erase through CTRL-AP fails due to watchdog time-out X
179 RTC COMPARE event is generated twice from a single RTC compare match X
184 NVMC Erase or write operations from the external debugger fail when CPU is not halted X
210 GPIO Bits in GPIO LATCH register are incorrectly set to 1 X
212 SAADC Events are not generated when switching from scan mode to no-scan mode with burst enabled X
217 RAM RAM calibration values are not correctly loaded from FICR at reset X
219 TWIM I2C timing spec is violated at 400 kHz X
237 SAADC TASKS_CALIBRATEOFFSET shall only be used before TASKS_START or after EVENTS_END X
241 SAADC Static 400 µA current after SAADC is disabled X
242 NVMC NVMC operations during POFWARN cause the CPU to hang X
245 RADIO CRC is wrong when data whitening is enabled and address field is included in CRC calculation X
246 System Intermittent extra current consumption when going to sleep X
262 POWER CPU does not resume execution after CPU IDLE X
266 SAADC Gain error exceeds specified value when using VDD as reference X
276 SAADC Static 400 µA current after SAADC is disabled in scan mode X
277 GPIO Static current is 300 µA higher than expected with PIN_CFN:SENSE enabled X