MC68HC711P2CFN4 Freescale Semiconductor, MC68HC711P2CFN4 Datasheet - Page 220

• Manufacturer Part Number: MC68HC711P2CFN4
• Description: IC MCU 32K OTP 4MHZ 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711P2CFN4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: MI Bus, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 640 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

CPU Core and Instruction Set
11.3.6.8 Stop disable (S)
11.4 Data types
11.5 Opcodes and operands
Technical Data
Setting the STOP disable (S) bit prevents the STOP instruction from
putting the M68HC11 into a low-power stop condition. If the STOP
instruction is encountered by the CPU while the S-bit is set, it is treated
as a no-operation (NOP) instruction, and processing continues to the
next instruction. S is set by reset — i.e. STOP is disabled by default.
The M68HC11 CPU supports the following data types:
A byte is eight bits wide and can be accessed at any byte location. A
word is composed of two consecutive bytes with the most significant
byte at the lower value address. Because the M68HC11 is an 8-bit CPU,
there are no special requirements for alignment of instructions or
operands.
The M68HC11 family of microcontrollers uses 8-bit opcodes. Each
opcode identifies a particular instruction and associated addressing
mode to the CPU. Several opcodes are required to provide each
instruction with a range of addressing capabilities. Only 256 opcodes
would be available if the range of values were restricted to the number
able to be expressed in 8-bit binary numbers.
A four-page opcode map has been implemented to expand the number
of instructions. An additional byte, called a prebyte, directs the processor
from page 0 of the opcode map to one of the other three pages. As its
Freescale Semiconductor, Inc.
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For More Information On This Product,
Bit data
8-bit and 16-bit signed and unsigned integers
16-bit unsigned fractions
16-bit addresses
CPU Core and Instruction Set
Go to: www.freescale.com
MC68HC11P2 — Rev 1.0