Register definition: 
Status Register 1: S7 - S0
  Bit       Name                            Settings:    
   7        SRP0                            0: Disable (Default), 1: Enabled
  6-2       Block Protect Size [4:0]        See Memory Protection Table

Status Register 2: S7 - S0
  Bit       Name                            Settings:    
   6        Complement Protect              0: Disabled (Default), 1: Enabled
  5-3       Security Register Lock [3:1]    0: Unlocked (Default), 1: Locked (OTP)
   1        Quad Enable                     1: Enabled
Status Register 3: S7 - S0
  Bit       Name                            Settings: 
   7        HOLD/RST                        0: HOLD pin (Default), 1: RESET pin
  6-5       Driver Strength                 00: 100%, 01: 75%, 10: 50%, 11: 25%
  4-3       Dummy Configuration             See Dummy Configuration Matrix
   2        WPS                             0: Block Protection Mode enable (Default), 1: Individual Block Memory Protection Mode (OTP)