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Factory Configuration (FCFG)

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9.2.1.31 FLASH_VHV_E Register (Offset = 180h) [reset = X]

FLASH_VHV_E is shown in Figure 9-52 and described in Table 9-54.

Flash VHV Erase

Figure 9-52. FLASH_VHV_E Register

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

VHV_E_START VHV_E_STEP_HIGHT

R-X R-1h

Table 9-54. FLASH_VHV_E Register Field Descriptions

Bit Field Type Reset Description

31-16 VHV_E_START R X

Starting VHV-Erase CT for stairstep erase. Value will be written to

FLASH:FSM_PRG_PUL.BEG_EC_LEVEL when an erase/program

operation is initiated.

15-0 VHV_E_STEP_HIGHT R 1h

Number of VHV CTs to step after each erase pulse (up to the max).

The actual FMC register value should be one less than this since the

FMC starts counting from zero. Value will be written to

FLASH:FSM_EC_STEP_HEIGHT.EC_STEP_HEIGHT when an

erase/program operation is initiated.

746

Device Configuration SWCU117A–February 2015–Revised March 2015

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