AT80C31X2 Key Features
- C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1
- I/O port registers: P0, P1, P2, P3
- Timer registers: TCON, TH0, TH1, TMOD, TL0, TL1
- Serial I/O port registers: SADDR, SADEN, SBUF, SCON
- Power and clock control registers: PCON
- Interrupt system registers: IE, IP, IPH
- Others: CKCON