MC68HC908GR16VFJ Freescale Semiconductor, MC68HC908GR16VFJ Datasheet - Page 243

• Manufacturer Part Number: MC68HC908GR16VFJ
• Description: IC MCU 16K FLASH 8MHZ SPI 32LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR16VFJ

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LIN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

The last two conditions are the forced monitor mode.
Freescale Semiconductor
PROGRAMMING
FROM
•
IS ENABLED)
DEBUGGING
CONDITIONS
AND FLASH
(IF FLASH
If $FFFE and $FFFF contain $FF (erased state):
–
–
Table 19-1
The external clock is 32.768 kHz
IRQ = V
SS
PTA1 = 0, RESET
MONITOR MODE
Figure 19-9. Simplified Monitor Mode Entry Flowchart
PTA0 = 1,
FORCED
BLANK?
YES
YES
MC68HC908GR16 Data Sheet, Rev. 5.0
NO
NO
MONITOR MODE ENTRY
MONITOR CODE
SEND 8 BYTES
DOES RESET
USER MODE
SECURITY
IS RESET
EXECUTE
POR RESET
IRQ = V
OCCUR?
NORMAL
POR?
NO
TST
?
YES
NO
YES
ENABLE FLASH
PTA0 = 1, PTA1 = 0,
MONITOR MODE
PTB0 = 1, AND
PTB1 = 0?
NORMAL
YES
YES
SECURITY BYTES
CORRECT?
ARE ALL
NO
USE ONLY
FACTORY
Monitor ROM (MON)
DISABLE FLASH
NO
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