MC68HC705C8ACFN Freescale Semiconductor, MC68HC705C8ACFN Datasheet - Page 45

IC MCU 4MHZ 8K OTP 44-PLCC

MC68HC705C8ACFN

Manufacturer Part Number
MC68HC705C8ACFN
Description
IC MCU 4MHZ 8K OTP 44-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705C8ACFN

Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
304 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-

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3.3.1 Accumulator
3.3.2 Index Register
MC68HC705C8A — Rev. 3
MOTOROLA
The accumulator (A) shown in
register. The CPU uses the accumulator to hold operands and results of
arithmetic and non-arithmetic operations.
Reset:
In the indexed addressing modes, the CPU uses the byte in the index
register (X) shown in
the operand. See
Offset, and
indexed addressing.
The 8-bit index register also can serve as a temporary data storage
location.
Reset:
Read:
Read:
Write:
Write:
Freescale Semiconductor, Inc.
For More Information On This Product,
Bit 7
Bit 7
Central Processor Unit (CPU)
12.3.7 Indexed, 16-Bit Offset
Go to: www.freescale.com
6
6
12.3.5 Indexed, No
Figure 3-3. Index Register (X)
Figure 3-2. Accumulator (A)
Figure 3-3
5
5
Figure 3-2
Unaffected by reset
Unaffected by reset
to determine the conditional address of
4
4
Offset,
3
3
is a general-purpose 8-bit
for more information on
12.3.6 Indexed, 8-Bit
Central Processor Unit (CPU)
2
2
1
1
CPU Registers
Technical Data
Bit 0
Bit 0
45

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