abled, and said second charge pump is disabled and its pump-voltage output is grounded;  when said control circuit is placed in a second state, said first charge pump is enabled, and said second charge pump is enabled;  when said control circuit is placed in a third state said first charge pump is disabled and said second charge pump is enabled; and  when said control circuit is placed in a fourth state said first charge pump is disabled and its pump-voltage output is grounded, and said second charge pump is enabled.  0. The programmable gate array of claim 0 wherein