C8051F521A-IM 查看數據表（PDF） - Silicon Laboratories
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C8051F521A-IM Datasheet PDF : 221 Pages
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C8051F52x/F53x
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 C8051F52x/F52xA/F53x/F53xA family has a superset of all the peripherals included with a stan-
dard 8051. See Section “1. System Overview” on page 13 for more information about the available
peripherals. The CIP-51 includes on-chip debug hardware which interfaces directly with the analog and
digital subsystems, 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 core includes the following features:
Fully Compatible with MCS-51 Instruction Set
25 MIPS Peak Throughput
256 Bytes of Internal RAM
Extended Interrupt Handler
Reset Input
Power Management Modes
Integrated Debug Logic
Program and Data Memory Security
DATA BUS
ACCUMULATOR
TMP1
TMP2
PSW
ALU
B REGISTER
STACK POINTER
SRAM
ADDRESS
REGISTER
SRAM
(256 X 8)
DATA BUS
BUFFER
D8
DATA POINTER
D8
PC INCREMENTER
SFR_ADDRESS
SFR
SFR_CONTROL
D8
BUS
SFR_WRITE_DATA
INTERFACE
SFR_READ_DATA
PROGRAM COUNTER (PC)
PRGM. ADDRESS REG.
RESET
CLOCK
CONTROL
LOGIC
PIPELINE
STOP
IDLE
POWER CONTROL
REGISTER
D8
D8
MEM_ADDRESS
MEM_CONTROL
MEMORY
A16
INTERFACE MEM_WRITE_DATA
MEM_READ_DATA
D8
INTERRUPT
INTERFACE
D8
SYSTEM_IRQs
EMULATION_IRQ
Figure 8.1. CIP-51 Block Diagram
Rev. 1.4
81
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