MC908AS60ACFN Freescale Semiconductor, MC908AS60ACFN Datasheet - Page 53
MC908AS60ACFN
Manufacturer Part Number
MC908AS60ACFN
Description
IC MCU 60K FLASH 8.4MHZ 52PLCC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AZ60ACFUER.pdf
(414 pages)
Specifications of MC908AS60ACFN
Core Processor
HC08
Core Size
8-Bit
Speed
8.4MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
42
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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4.3.2 FLASH-1 Block Protect Register
The FLASH-1 Block Protect Register (FL1BPR) is implemented as a byte within the FLASH-1 memory
and therefore can only be written during a FLASH programming sequence. The value in this register
determines the starting location of the protected range within the FLASH-1 memory.
FL1BPR[7:0] — Block Protect Register Bit 7 to Bit 0
FLASH-1 Protected Ranges
Freescale Semiconductor
These eight bits represent bits [14:7] of a 16-bit memory address. Bit 15 is logic 1 and bits [6:0] are
logic 0s.
The resultant 16-bit address is used for specifying the start address of the FLASH-1 memory for block
protection. FLASH-1 is protected from this start address to the end of FLASH-1 memory at $FFFF.
With this mechanism, the protect start address can be $XX00 and $XX80 (128 byte page boundaries)
within the FLASH-1 array.
Address:
Read:
Write:
Start address of FLASH block protect
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
$FF80
Figure 4-2. FLASH-1 Block Protect Register (FL1BPR)
BPR7
Bit 7
Figure 4-3. FLASH-1 Block Protect Start Address
FL1BPR[7:0]
$FF
$FE
$FD
$0B
$0A
$09
$08
$04
$03
$02
$01
$00
BPR6
6
BPR5
5
1
BPR4
4
FLBPR value
Protected Range
$FE80 – $FFFF
$FF00 – $FFFF
$8580 – $FFFF
$8500 – $FFFF
$8480 – $FFFF
$8400 – $FFFF
$8200 – $FFFF
$8180 – $FFFF
$8100 – $FFFF
$8080 – $FFFF
$8000 – $FFFF
16-bit memory address
No Protection
BPR3
3
FLASH-1 Control and Block Protect Registers
BPR2
0 0 0 0 0 0 0
2
BPR1
1
BPR0
Bit 0
53
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