int e l 1.11 8052AH SPECIAL FUNCTION REGISTERS The following details the operation of the special function registers on the 8052AH: - 193 - SYMBOL NAME NAME ADDRESS MCS BASIC-52 ACC B PSW SP DPTR DPH DPL P0 P1 P2 P3 IP IE TMOD TCON T2CON TH0 TL0 TH1 TL1 TH2 TL2 RCAP2H RCAP2L SCON SBUF PCON Accumulator B Register Program Status Word Stack Pointer Data Pointer 2 Bytes:
Low Byte High Byte Port 0 Port 1 Port 2 Port 3 Interrupt Priority Control Interrupt Enable Control Timer/Counter Mode Control Timer/Counter Control Timer/Counter 2 Control Timer/Counter 0 High Byte Timer/Counter 0 Low Byte Timer/Counter 1 High Byte Timer/Counter 1 Low Byte Timer/Counter 2 High Byte Timer/Counter 2 Low Byte T/C 2 Capture Reg. High Byte T/C 2 Capture Reg.
Low Byte Serial Control Serial Data Buffer Power Control 0E0H 0F0H 0D0H 81H 82H 83H 80H 90H 0A0H 0B0H 0B8H 0A8H 89H 88H 0C8H 8CH 8AH 8DH 8BH 0CDH 0CCH 0CBH 0CAH 98H 99H 87H NOT ADDRESSABLE NOT ADDRESSABLE NOT ADDRESSABLE NOT ADDRESSABLE NOT ADDRESSABLE NOT ADDRESSABLE NOT ADDRESSABLE PORT1 NOT ADDRESSABLE NOT ADDRESSABLE IP IE TMOD TCON T2CON } TIMER0 } TIMER1 } TIMER2 } RCAP2 NOT ADDRESSABLE NOT ADDRESSABLE NOT ADDRESSABLE