MC68HC908RF2CFA Freescale Semiconductor, MC68HC908RF2CFA Datasheet - Page 127

• Manufacturer Part Number: MC68HC908RF2CFA
• Description: IC MCU W/UHF TX 2K FLASH 32LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908RF2CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: LVD, POR, PWM, RF Mod
• Number Of I /o: 12
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

10.7.2 SIM Reset Status Register
MC68HC908RF2 — Rev. 4.0
MOTOROLA
This register contains six flags that show the source of the last reset. The status
register will clear automatically after reading it. A power-on reset sets the POR bit.
POR — Power-On Reset Bit
PIN — External Reset Bit
COP — Computer Operating Properly Reset Bit
ILOP — Illegal Opcode Reset Bit
ILAD — Illegal Address Reset Bit (opcode fetches only)
LVI — Low-Voltage Inhibit Reset Bit
Address:
Read:
Write:
POR:
1 = Last reset caused by POR circuit
0 = Read of SRSR
1 = Last reset caused by external reset pin (RST)
0 = Read of SRSR
1 = Last reset caused by COP counter
0 = Read of SRSR
1 = Last reset caused by an illegal opcode
0 = Read of SRSR
1 = Last reset caused by an opcode fetch from an illegal address
0 = Read of SRSR
1 = Last reset was caused by the LVI circuit
0 = Read of SRSR
Freescale Semiconductor, Inc.
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POR
Bit 7
1
Figure 10-18. SIM Reset Status Register (SRSR)
System Integration Module (SIM)
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= Unimplemented
PIN
X
6
COP
5
X
X = Indeterminate
ILOP
4
X
ILAD
X
3
System Integration Module (SIM)
X
2
0
LVI
X
1
SIM Registers
Data Sheet
Bit 0
X
0
127