MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 117

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MC68HC705B16CFN

Manufacturer Part Number
MC68HC705B16CFN
Description
IC MCU 2.1MHZ 15K OTP 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705B16CFN

Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI
Peripherals
POR, WDT
Number Of I /o
32
Program Memory Size
15KB (15K x 8)
Program Memory Type
OTP
Eeprom Size
256 x 8
Ram Size
352 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
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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This section provides a description of the CPU core registers, the instruction set and the
addressing modes of the MC68HC05B6.
10.1
The MCU contains five registers, as shown in the programming model of
stacking order is shown in
MC68HC05B6
Rev. 4.1
CPU CORE AND INSTRUCTION SET
Increasing
memory
address
Registers
15
15
0
0 0 0 0 0 0 0 1 1
Unstack
Figure
CPU CORE AND INSTRUCTION SET
7
Figure 10-1 Programming model
10-2.
Figure 10-2 Stacking order
1 1 1 H I N Z C
7
7
7
7
7
Condition code register
Program counter high
Program counter low
Index register
Accumulator
10
0
0
0
0
0
Accumulator
Index register
Program counter
Stack pointer
Condition code register
Carry / borrow
Zero
Negative
Interrupt mask
Half carry
0
Stack
Figure
Decreasing
memory
address
10-1. The interrupt
Freescale
10-1
10

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