MC68HC705C8ACB Freescale Semiconductor, MC68HC705C8ACB Datasheet - Page 44
MC68HC705C8ACB
Manufacturer Part Number
MC68HC705C8ACB
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68HC705C8ACB.pdf
(222 pages)
Specifications of MC68HC705C8ACB
Cpu Family
HC05
Device Core Size
8b
Frequency (max)
2.1MHz
Interface Type
SCI/SPI
Program Memory Type
EPROM
Program Memory Size
8KB
Total Internal Ram Size
304Byte
# I/os (max)
24
Number Of Timers - General Purpose
1
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
3V
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
42
Package Type
SPDIP
Lead Free Status / Rohs Status
Not Compliant
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Central Processor Unit (CPU)
3.3 CPU Registers
Technical Data
44
Figure 3-1
within the CPU and are not part of the memory map.
Bit 12 11
Bit 12 11
Freescale Semiconductor, Inc.
0
For More Information On This Product,
0
10
10
0
shows the five CPU registers. These are hard-wired registers
Central Processor Unit (CPU)
CARRY/BORROW FLAG
Go to: www.freescale.com
9
0
9
HALF-CARRY FLAG
INTERRUPT MASK
NEGATIVE FLAG
8
0
8
Figure 3-1. Programming Model
ZERO FLAG
Bit 7
Bit 7
Bit 7
7
1
7
1
6
6
6
1
6
6
1
5
5
5
5
5
1
H
4
4
4
4
4
3
3
3
3
3
I
N
2
2
2
2
2
1
1
1
1
1
Z
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
C
INDEX REGISTER (X)
STACK POINTER (SP)
PROGRAM COUNTER (PC)
CONDITION CODE REGISTER (CCR)
ACCUMULATOR (A)
MC68HC705C8A — Rev. 3
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