MC68HC908AP64CFA Freescale Semiconductor, MC68HC908AP64CFA Datasheet - Page 124

• Manufacturer Part Number: MC68HC908AP64CFA
• Description: IC MCU 64K 8MHZ SPI 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AP64CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, IRSCI, SCI, SPI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• For Use With: DEMO908AP64E - BOARD DEMO FOR 908AP64DEMO908AP64 - BOARD DEMO FOR 908AP64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Monitor ROM (MON)
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.
124
Description
Description
Returned
Returned
Operand
Operand
Opcode
Opcode
Data
Data
Table 8-8. READSP (Read Stack Pointer) Command
Table 8-9. RUN (Run User Program) Command
ECHO
Reads stack pointer
None
Returns incremented stack pointer value (SP + 1) in
high-byte:low-byte order
$0C
Executes PULH and RTI instructions
None
None
$28
READSP
FROM
HOST
MC68HC908AP Family Data Sheet, Rev. 4
ECHO
READSP
FROM
HOST
RUN
Command Sequence
Command Sequence
RUN
HIGH
SP
LOW
SP
RETURN
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