MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 108

• Manufacturer Part Number: MC908MR8MPE
• Description: IC MCU 8BIT 8K FLASH 28-PDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908MR8MPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

System Integration Module (SIM)
7.7.4 SIM Reset Status Register
Technical Data
108
The SIM reset status register (SRSR) contains six flags that show the
source of the last reset. Clear the SRSR by reading it. A power-on reset
sets the POR bit and clears all other bits in the register.
Reset:
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
dress:
Read:
Write:
Ad-
1 = Last reset caused by POR circuit
0 = Read of SRSR
1 = Last reset caused by external reset pin (RST)
0 = POR or read of SRSR
1 = Last reset caused by COP counter
0 = POR or read of SRSR
1 = Last reset caused by an illegal opcode
0 = POR or read of SRSR
1 = Last reset caused by an opcode fetch from an illegal address
0 = POR or read of SRSR
1 = Last reset was caused by the LVI circuit
0 = POR or read of SRSR
$FE01
POR
BIt 7
R
R
1
Figure 7-16. SIM Reset Status Register (SRSR)
System Integration Module (SIM)
= Reserved
PIN
R
6
0
COP
R
5
0
ILOP
R
4
0
ILAD
R
3
0
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
R
2
0
0
LVI
R
1
0
Bit 0
R
0
0