Microcontroller

Features

• Eight-bit CPU.
• Sixteen-bit program counter and data pointer.
• Eight-bit program status word.
• Eight-bit stack pointer.
• Internal ROM of 4k.
• Internal RAM of 128 bytes.
• Four register banks, each containing eight registers.
• Sixteen bytes, which may be addressed at the bit level.
• Eighty bytes of general-purpose data memory.
• Thirty-two input/output pins arranged as four 8-bit ports: P0 - P3.
• Full duplex serial data receiver/transmitter: SBUF.
• Control registers: TCON, TMOD, SCON, PCON, IP, and IE.
• Two external and three internal interrupt sources.
• Five Interrupts are provided.
• Fully synthesizable Register Transfer Level (RTL) VHDL.