MC68HC908MR8CP Freescale Semiconductor, MC68HC908MR8CP Datasheet - Page 90

• Manufacturer Part Number: MC68HC908MR8CP
• Description: IC MCU 8K FLASH 8MHZ PWM 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR8CP

• 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 ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

System Integration Module (SIM)
7.2 Introduction
Technical Data
90
This section describes the system integration module (SIM). Together
with the central processor unit (CPU), the SIM controls all
microcontroller unit (MCU) activities. A block diagram of the SIM is
shown in
(I/O) registers.
The SIM is a system state controller that coordinates CPU and exception
timing. The SIM is responsible for:
•
•
•
•
•
Bus clock generation and control for CPU and peripherals:
– Stop, wait, reset, break entry, and recovery
– Internal clock control
Master reset control, including power-on reset (POR) and
computer operating properly (COP) timeout
Interrupt control:
– Acknowledge timing
– Arbitration control timing
– Vector address generation
CPU enable/disable timing
Modular architecture expandable to 128 interrupt sources
Figure
System Integration Module (SIM)
7-1.
Figure 7-2
is a summary of the SIM inout/output
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor