OORW:
Boeing Autobrakes senses deceleration rate and modulates brake pressure accordingly. Application of reverse thrust will result in reduced braking pressure.
On the 737 NG the autobrake settings available are 1/2/3/max and RTO.
1 is equal to 1250 PSI and 4ft/sec scheduled deceleration
2: 1500 PSI 5 ft/sec
3: 2000 PSI 7.2 ft/sec
Max: 3000 PSI 14ft/sec above 80 kts. 12 ft/sec below 80 kts
RTO: 3000 PSI