MC9S08RE16FDE Freescale Semiconductor, MC9S08RE16FDE Datasheet - Page 68
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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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Resets, Interrupts, and System Configuration
5.8.4
This register may be read at any time. Bits 3 and 2 are unimplemented and always read 0. This is a
write-once register so only the first write after reset is honored. Any subsequent attempt to write to SOPT
(intentionally or unintentionally) is ignored to avoid accidental changes to these sensitive settings. SOPT
must be written during the user’s reset initialization program to set the desired controls even if the desired
settings are the same as the reset settings.
68
BKGDPE
STOPE
RSTPE
COPE
COPT
Field
7
6
5
1
0
Reset
W
R
System Options Register (SOPT)
COP Watchdog Enable — This write-once bit defaults to 1 after reset.
0 COP watchdog timer disabled.
1 COP watchdog timer enabled (force reset on timeout).
COP Watchdog Timeout — This write-once bit defaults to 1 after reset.
0 Short timeout period selected (2
1 Long timeout period selected (2
Stop Mode Enable — This write-once bit defaults to 0 after reset, which disables stop mode. If stop mode is
disabled and a user program attempts to execute a STOP instruction, an illegal opcode reset is forced.
0 Stop mode disabled.
1 Stop mode enabled.
Background Debug Mode Pin Enable — The BKGDPE bit enables the PTD0/BKGD/MS pin to function as
BKGD/MS. When the bit is clear, the pin will function as PTD0, which is an output only general purpose I/O. This
pin always defaults to BKGD/MS function after any reset.
0 BKGD pin disabled.
1 BKGD pin enabled.
RESET Pin Enable — The RSTPE bit enables the PTD1/RESET pin to function as RESET. When the bit is clear,
the pin will function as PTD1, which is an output only general purpose I/O. This pin always defaults to RESET
function after any reset.
0 RESET pin disabled.
1 RESET pin enabled.
COPE
1
7
= Unimplemented or Reserved
COPT
6
1
Figure 5-5. System Options Register (SOPT)
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
Table 5-5. SOPT Field Descriptions
STOPE
0
5
20
18
cycles of BUSCLK).
cycles of BUSCLK).
4
1
Description
0
0
3
2
0
0
BKGDPE
Freescale Semiconductor
1
1
RSTPE
0
1
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