MCR908JK3ECPE Freescale Semiconductor, MCR908JK3ECPE Datasheet - Page 38
MCR908JK3ECPE
Manufacturer Part Number
MCR908JK3ECPE
Description
IC MCU FLASH 8BIT RC OSC 20-DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908JK1ECDWE.pdf
(180 pages)
Specifications of MCR908JK3ECPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LED, LVD, POR, PWM
Number Of I /o
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Processor Series
HC08JK
Core
HC08
Data Bus Width
8 bit
Data Ram Size
128 B
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
15
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Development Tools By Supplier
FSICEBASE, DEMO908JL16E, M68CBL05CE
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCR908JK3ECPE
Manufacturer:
Freescale
Quantity:
289
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Central Processor Unit (CPU)
4.3.1 Accumulator
The accumulator is a general-purpose 8-bit register. The CPU uses the accumulator to hold operands and
the results of arithmetic/logic operations.
4.3.2 Index Register
The 16-bit index register allows indexed addressing of a 64-Kbyte memory space. H is the upper byte of
the index register, and X is the lower byte. H:X is the concatenated 16-bit index register.
In the indexed addressing modes, the CPU uses the contents of the index register to determine the
conditional address of the operand.
The index register can serve also as a temporary data storage location.
38
Reset:
Reset:
Read:
Write:
Read:
Write:
X = Indeterminate
15
15
15
Bit
15
0
Bit 7
14
0
H
13
0
6
MC68HC908JL3E Family Data Sheet, Rev. 4
12
0
Figure 4-3. Index Register (H:X)
Figure 4-2. Accumulator (A)
Figure 4-1. CPU Registers
11
7
7
V 1 1 H I N Z C
0
5
10
0
X
9
0
Unaffected by reset
4
8
0
0
0
0
0
0
X
7
ACCUMULATOR (A)
INDEX REGISTER (H:X)
STACK POINTER (SP)
PROGRAM COUNTER (PC)
CONDITION CODE REGISTER (CCR)
CARRY/BORROW FLAG
ZERO FLAG
NEGATIVE FLAG
INTERRUPT MASK
HALF-CARRY FLAG
TWO’S COMPLEMENT OVERFLOW FLAG
3
X
6
X
5
2
X
4
X
3
1
2
X
Freescale Semiconductor
X
1
Bit 0
Bit
0
X
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