Currently supported General Instrument devices:

27256, 27C128, 27C256, 27C256 [PLCC32], 27C512, 27C512 [PLCC32], 27C513, 27C64, 27HC64, 27HC641, 27HC64L, 28C04, 28C04F, 28C16/F, 28C16/F [PLCC32], 28C17/F, 28C17/F [PLCC32], 28C64/F, 28C64/F [PLCC32], 28C64X, 28C64X [PLCC32], BAW574252, ER5901, ER5911, ER5911 (ISP), ER5911 (x8), ER5911 (x8) (ISP), ER5912, ER5912 (ISP), ER59256, GI5911, GI5911 (ISP), GI59C11, GI59C11 (ISP), GI59C12, GI59C12 (ISP), GI8572