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C8051F300 Datasheet(PDF) 55 Page - List of Unclassifed Manufacturers |
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C8051F300 Datasheet(HTML) 55 Page - List of Unclassifed Manufacturers |
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55 / 174 page  C8051F300/1/2/3/4/5 Rev. 2.6 55 8. CIP-51 Microcontroller The MCU system controller core is the CIP-51 microcontroller. The CIP-51 is fully compatible with the MCS-51™ instruction set; standard 803x/805x assemblers and compilers can be used to develop soft- ware. The MCU family has a superset of all the peripherals included with a standard 8051. Included are three 16-bit counter/timers (see description in Section 15), an enhanced full-duplex UART (see description in Section 14), 256 bytes of internal RAM, 128 byte Special Function Register (SFR) address space (Sec- tion 8.2.6), and one byte-wide I/O Port (see description in Section 12). The CIP-51 also includes on-chip debug hardware (see description in Section 17), and interfaces directly with the analog and digital sub- systems providing a complete data acquisition or control-system solution in a single integrated circuit. The CIP-51 Microcontroller core implements the standard 8051 organization and peripherals as well as additional custom peripherals and functions to extend its capability (see Figure 8.1 for a block diagram). The CIP-51 includes the following features: Figure 8.1. CIP-51 Block Diagram - Fully Compatible with MCS-51 Instruction Set - Extended Interrupt Handler - 25 MIPS Peak Throughput with 25 MHz Clock - Reset Input - 0 to 25 MHz Clock Frequency - Power Management Modes - 256 Bytes of Internal RAM - On-chip Debug Logic - Byte-Wide I/O Port - Program and Data Memory Security DATA BUS TMP1 TMP2 PRGM. ADDRESS REG. PC INCREMENTER ALU PSW DATA BUS MEMORY INTERFACE MEM_ADDRESS D8 PIPELINE BUFFER DATA POINTER INTERRUPT INTERFACE SYSTEM_IRQs EMULATION_IRQ MEM_CONTROL CONTROL LOGIC A16 PROGRAM COUNTER (PC) STOP CLOCK RESET IDLE POWER CONTROL REGISTER SFR BUS INTERFACE SFR_ADDRESS SFR_CONTROL SFR_WRITE_DATA SFR_READ_DATA D8 D8 B REGISTER ACCUMULATOR D8 D8 D8 D8 MEM_WRITE_DATA MEM_READ_DATA SRAM ADDRESS REGISTER SRAM (256 X 8) STACK POINTER |
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