MC9S08RE16FDE Freescale Semiconductor, MC9S08RE16FDE Datasheet - Page 52
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MC9S08RE16FDE
Manufacturer Part Number
MC9S08RE16FDE
Description
IC MCU 16K FLASH 1K RAM 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS08r
Specifications of MC9S08RE16FDE
Core Processor
HCS08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
48-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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Memory
4.6.4
During reset, the contents of the nonvolatile location NVPROT is copied from FLASH into FPROT. Bits 0,
1, and 2 are not used and each always reads as 0. This register may be read at any time, but user program
writes have no meaning or effect. Background debug commands can write to FPROT at $1824.
1. Background commands can be used to change the contents of these bits in FPROT.
52
FPOPEN
KEYACC
FPS[2:0]
FPDIS
Field
Field
5:3
5
7
6
Reset
Reset
W
W
R
R
FLASH Protection Register (FPROT and NVPROT)
Enable Writing of Access Key — This bit enables writing of the backdoor comparison key. For more detailed
information about the backdoor key mechanism, refer to
0 Writes to $FFB0–$FFB7 are interpreted as the start of a FLASH programming or erase command.
1 Writes to NVBACKKEY ($FFB0–$FFB7) are interpreted as comparison key writes.
Open Unprotected FLASH for Program/Erase
0 Entire FLASH memory is block protected (no program or erase allowed).
1 Any FLASH location, not otherwise block protected or secured, may be erased or programmed.
FLASH Protection Disable
0 FLASH block specified by FPS2:FPS0 is block protected (program and erase not allowed).
1 No FLASH block is protected.
FLASH Protect Size Selects — When FPDIS = 0, this 3-bit field determines the size of a protected block of
FLASH locations at the high address end of the FLASH (see
locations cannot be erased or programmed.
FPOPEN
Reads of the FLASH return invalid data.
(1)
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
FPDIS
Figure 4-7. FLASH Configuration Register (FCNFG)
(1)
6
0
6
This register is loaded from nonvolatile location NVPROT during reset.
Figure 4-8. FLASH Protection Register (FPROT)
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
Table 4-8. FCNFG Field Descriptions
Table 4-9. FPROT Field Descriptions
KEYACC
FPS2
(1)
0
5
5
FPS1
(1)
4
0
4
Description
Description
Section 4.5,
FPS0
Table 4-10
(1)
0
3
3
“Security."
and
2
0
2
0
Table
4-11). Protected FLASH
Freescale Semiconductor
0
0
1
1
0
0
0
0
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