AT89S2051 4MHZ 0x1E 0x23 0xFF 2 5 1 0 2048 32 32 32 9 15 50 9 9 100 0x41000000 3 0xac100000 1 0x24000000 3 0xace30000 1 0x00 0xFF 3 0x20 0x00 Serial program downloading (SPI) enabled 0x01 0x00 Internal RC oscillator enabled 0x01 0x01 External clock enabled ISP Ebable x2 Clock User Rowe Osc Bypass LB1 Lockbit LB2 Lockbit