38.7.11 Scaler 1

Name: SCALER1
Offset: 0x0D
Reset: 0x00
Property: PAC Write-Protection

Bit 76543210 
     VALUE[3:0] 
Access R/WR/WR/WR/W 
Reset 0000 

Bits 3:0 – VALUE[3:0] Scaler Value

These bits define the scaling factor for channel 1 of the VDD voltage scaler. The output voltage, VSCALE, is:

V SCALE = V D D × ( R _ B o t t o m R _ T o t a l )

Where, R_Total = 900.

Refer to the following table for R_Bottom for different VALUE[3:0]

For example, VSCALE for VALUE[3:0] = 0x02 at VDD = 3.3V

V SCALE = 3.3 × ( 598.5 900 ) = 2.1945 V

Table 38-3. Scaler Value
Value[3:0] R_Bottom
0x0 Reserved
0x1 Reserved
0x2 598.5
0x3 634.5
0x4 306
0x5 324
0x6 328.5
0x7 360
0x8 387
0x9 400.5
0xA 432
0xB 450
0xC 468
0xD 490.5
0xE 481.5
0xF External Reference on LVDIN pin