MC68HC908JB16DW Freescale Semiconductor, MC68HC908JB16DW Datasheet - Page 134

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MC68HC908JB16DW

Manufacturer Part Number
MC68HC908JB16DW
Description
IC MCU 16K FLASH 6MHZ USB 28SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet

Specifications of MC68HC908JB16DW

Core Processor
HC08
Core Size
8-Bit
Speed
6MHz
Connectivity
SCI, USB
Peripherals
LED, LVD, POR, PWM
Number Of I /o
21
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
384 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-

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Monitor ROM (MON)
Technical Data
134
The MCU executes the SWI and PSHH instructions when it enters
monitor mode. The RUN command tells the MCU to execute the PULH
and RTI instructions. Before sending the RUN command, the host can
modify the stacked CPU registers to prepare to run the host program.
The READSP command returns the incremented stack pointer value,
SP + 1. The high and low bytes of the program counter are at addresses
SP + 5 and SP + 6.
Description
Returned
Operand
Opcode
Data
Figure 9-7. Stack Pointer at Monitor Mode Entry
Table 9-9. RUN (Run User Program) Command
Executes RTI instruction
None
None
$28
Monitor ROM (MON)
HIGH BYTE OF PROGRAM COUNTER
LOW BYTE OF PROGRAM COUNTER
HIGH BYTE OF INDEX REGISTER
LOW BYTE OF INDEX REGISTER
CONDITION CODE REGISTER
ECHO
Command Sequence
ACCUMULATOR
SENT TO
MONITOR
RUN
RUN
SP
SP + 1
SP + 2
SP + 3
SP + 4
SP + 5
SP + 6
SP + 7
MC68HC908JB16
Freescale Semiconductor
Rev. 1.1

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