MC68HC908JB8JDW Freescale Semiconductor, MC68HC908JB8JDW Datasheet - Page 93

• Manufacturer Part Number: MC68HC908JB8JDW
• Description: IC MCU 8K FLASH 3MHZ 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB8JDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: USB
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Technical Data — MC68HC908JB8•MC68HC08JB8•MC68HC08JT8
8.1 Contents
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
8.2
8.3
8.3.1
8.3.2
8.3.3
8.4
8.4.1
8.4.2
8.4.2.1
8.4.2.2
8.4.2.3
8.4.2.4
8.4.2.5
8.4.2.6
8.4.2.7
8.5
8.5.1
8.5.2
8.5.3
8.6
8.6.1
8.6.1.1
8.6.1.2
8.6.2
8.6.2.1
8.6.3
8.6.4
8.6.5
Section 8. System Integration Module (SIM)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
SIM Bus Clock Control and Generation . . . . . . . . . . . . . . . . . . 96
Reset and System Initialization. . . . . . . . . . . . . . . . . . . . . . . . . 97
SIM Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Exception Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Bus Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Clock Startup from POR or LVI Reset . . . . . . . . . . . . . . . . . 97
Clocks in Stop Mode and Wait Mode . . . . . . . . . . . . . . . . . . 97
External Pin Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Active Resets from Internal Sources . . . . . . . . . . . . . . . . . . 99
SIM Counter During Power-On Reset . . . . . . . . . . . . . . . . 103
SIM Counter During Stop Mode Recovery . . . . . . . . . . . . . 104
SIM Counter and Reset States. . . . . . . . . . . . . . . . . . . . . . 104
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Interrupt Status Registers. . . . . . . . . . . . . . . . . . . . . . . . . . 108
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Status Flag Protection in Break Mode . . . . . . . . . . . . . . . . 110
System Integration Module (SIM)
Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
Computer Operating Properly (COP) Reset. . . . . . . . . . 101
Illegal Opcode Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Illegal Address Reset . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Low-Voltage Inhibit (LVI) Reset . . . . . . . . . . . . . . . . . . . 102
Universal Serial Bus Reset . . . . . . . . . . . . . . . . . . . . . . 102
Registers Values After Different Resets. . . . . . . . . . . . . 102
Hardware Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
SWI Instruction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Interrupt Status Register 1 . . . . . . . . . . . . . . . . . . . . . . . 109
Technical Data
93