MC908GR32AVFAE Freescale Semiconductor, MC908GR32AVFAE Datasheet - Page 52
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MC908GR32AVFAE
Manufacturer Part Number
MC908GR32AVFAE
Description
IC MCU 8BIT 32K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GR32ACFJE.pdf
(314 pages)
Specifications of MC908GR32AVFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
48-LQFP
Controller Family/series
HC08
No. Of I/o's
37
Ram Memory Size
1.5KB
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08GR
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
ESCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
53
Number Of Timers
8
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 24 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GR32AVFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Memory
Decreasing the value in FL2BPR by one increases the protected range by one page (128 bytes).
However, programming the block protect register with $FE protects a range twice that size, 256 bytes, in
the corresponding array. $FE means that locations $7F00–$7FFF are protected in FLASH-2.
The FLASH memory does not exist at some locations. The block protection range configuration is
unaffected if FLASH memory does not exist in that range. Refer to
desired locations are protected.
2.7.3 FLASH-2 Block Protection
Due to the ability of the on-board charge pump to erase and program the FLASH memory in the target
application, provision is made for protecting blocks of memory from unintentional erase or program
operations due to system malfunction. This protection is done by using the FLASH-2 block protection
register (FL2BPR). FL2BPR determines the range of the FLASH-2 memory which is to be protected. The
range of the protected area starts from a location defined by FL2BPR and ends at the bottom of the
FLASH-2 memory ($7FFF). When the memory is protected, the HVEN bit can not be set in either ERASE
or PROGRAM operations.
When the FLASH-2 block protect register is programmed with all 0’s, the entire memory is protected from
being programmed and erased. When all the bits are erased (all 1’s), the entire memory is accessible for
program and erase.
52
In performing a program or erase operation, the FLASH-2 block protect
register must be read after setting the PGM or ERASE bit and before
asserting the HVEN bit.
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
START ADDRESS OF FLASH
BLOCK PROTECT
Figure 2-9. FLASH-2 Block Protect Start Address
FL2BPR[7:0]
$FF
$FE
$FD
$0B
$0A
Table 2-3. FLASH-2 Protected Ranges
$09
$08
$04
$03
$02
$01
$00
↓
↓
0
FLBPR VALUE
NOTE
16-BIT MEMORY ADDRESS
Protected Range
$7E80–$7FFF
$7F00–$7FFF
$0580–$7FFF
$0500–$7FFF
$0480–$7FFF
$0462–$7FFF
$0462–$7FFF
$0462–$7FFF
$0462–$7FFF
$0462–$7FFF
$0462–$7FFF
No Protection
↓
↓
0 0 0 0 0 0 0
Figure 2-1
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Freescale Semiconductor
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