MC68HC908GZ8VFA Freescale Semiconductor, MC68HC908GZ8VFA Datasheet - Page 45

• Manufacturer Part Number: MC68HC908GZ8VFA
• Description: IC MCU 8K FLASH 8MHZ CAN 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GZ8VFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 37
• Program Memory Size: 8KB (8K 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: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

2.6.8 Wait Mode
Putting the MCU into wait mode while the FLASH is in read mode does not affect the operation of the
FLASH memory directly, but there will not be any memory activity since the CPU is inactive.
The WAIT instruction should not be executed while performing a program or erase operation on the
FLASH, otherwise the operation will discontinue, and the FLASH will be on standby mode.
2.6.9 Stop Mode
Putting the MCU into stop mode while the FLASH is in read mode does not affect the operation of the
FLASH memory directly, but there will not be any memory activity since the CPU is inactive.
The STOP instruction should not be executed while performing a program or erase operation on the
FLASH, otherwise the operation will discontinue, and the FLASH will be on standby mode
Freescale Semiconductor
The resultant 16-bit address is used for specifying the start address of the FLASH memory for block
protection. The FLASH is protected from this start address to the end of FLASH memory, at $FFFF.
With this mechanism, the protect start address can be $XX00, $XX40, $XX80, and $XXC0 (64 bytes
page boundaries) within the FLASH memory.
Standby mode is the power saving mode of the FLASH module in which all
internal control signals to the FLASH are inactive and the current
consumption of the FLASH is at a minimum.
START ADDRESS OF FLASH
$FC (1111 1100)
$FD (1111 1101)
$FE (1111 1110)
$01 (0000 0001)
$02 (0000 0010)
$03 (0000 0011)
$04 (0000 0100)
BPR[7:0]
Table 2-2. Examples of Protect Address Ranges
Figure 2-6. FLASH Block Protect Start Address
$FF
$00
BLOCK PROTECT
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
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The entire FLASH memory is not protected.
$C0C0 (1100 0000 1100 0000) — $FFFF
$C040 (1100 0000 0100 0000) — $FFFF
$C080 (1100 0000 1000 0000) — $FFFF
$C100 (1100 0001 0000 0000) — $FFFF
$FF40 (1111 1111 0100 0000) — $FFFF
The entire FLASH memory is protected.
$FF00 (1111 1111 0000 0000) — FFFF
$FF80 (1111 1111 1000 0000) — FFFF
and so on...
FLBPR and vectors are protected
NOTE
Addresses of Protect Range
FLBPR VALUE
16-BIT MEMORY ADDRESS
Vectors are protected
0 0 0 0 0 0
FLASH Memory (FLASH)
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