C8051T322-GQR Silicon Labs, C8051T322-GQR Datasheet - Page 64

• Manufacturer Part Number: C8051T322-GQR
• Description: 8-bit Microcontrollers - MCU USB-OTP-16K-LQFP32
• Manufacturer: Silicon Labs

Specifications of C8051T322-GQR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

C8051T620/621/320/321/322/323
12. 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. The CIP-51
also includes on-chip debug hardware (see description in Section 30), and interfaces directly with the ana-
log and digital subsystems providing a complete data acquisition or control-system solution in a single inte-
grated 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 12.1 for a block diagram).
The CIP-51 includes the following features:




Performance
The CIP-51 employs a pipelined architecture that greatly increases its instruction throughput over the stan-
dard 8051 architecture. In a standard 8051, all instructions except for MUL and DIV take 12 or 24 system
clock cycles to execute, and usually have a maximum system clock of 12 MHz. By contrast, the CIP-51
core executes 70% of its instructions in one or two system clock cycles, with no instructions taking more
than eight system clock cycles.
64
Fully Compatible with MCS-51 Instruction Set
48 MIPS Peak Throughput with 48 MHz Clock
0 to 48 MHz Clock Frequency
Extended Interrupt Handler
RESET
CLOCK
STOP
IDLE
Figure 12.1. CIP-51 Block Diagram
ACCUMULATOR
PROGRAM COUNTER (PC)
CONTROL
PSW
PRGM. ADDRESS REG.
LOGIC
POWER CONTROL
PC INCREMENTER
DATA POINTER
REGISTER
BUFFER
TMP1
PIPELINE
ALU
Rev. 1.1
TMP2
DATA BUS
DATA BUS
D8
D8
D8




A16
D8
D8
D8
D8
B REGISTER
Reset Input
Power Management Modes
On-chip Debug Logic
Program and Data Memory Security
REGISTER
INTERFACE
INTERFACE
INTERRUPT
INTERFACE
ADDRESS
MEMORY
SRAM
SFR
BUS
MEM_WRITE_DATA
SFR_WRITE_DATA
MEM_READ_DATA
STACK POINTER
SFR_READ_DATA
SRAM
MEM_CONTROL
EMULATION_IRQ
MEM_ADDRESS
SFR_ADDRESS
SFR_CONTROL
SYSTEM_IRQs