S9S08SG8E2VTG Freescale Semiconductor, S9S08SG8E2VTG Datasheet - Page 65

• Manufacturer Part Number: S9S08SG8E2VTG
• Description: 8-bit Microcontrollers - MCU 9S08 UC W/ 8K 0.25UM SGF
• Manufacturer: Freescale Semiconductor

Specifications of S9S08SG8E2VTG

• Rohs: yes
• Core: S08
• Processor Series: MC9S08SG8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 5.5 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: TSSOP-16
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 12
• Interface Type: SCI, SPI
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 2.7 V

Chapter 5 
Resets, Interrupts, and General System Control
5.1
This section discusses basic reset and interrupt mechanisms and the various sources of reset and interrupt
in the MC9S08SG8. Some interrupt sources from peripheral modules are discussed in greater detail within
other sections of this data sheet. This section gathers basic information about all reset and interrupt sources
in one place for easy reference. A few reset and interrupt sources, including the computer operating
properly (COP) watchdog are not part of on-chip peripheral systems with their own chapters.
5.2
Reset and interrupt features include:
5.3
Resetting the MCU provides a way to start processing from a known set of initial conditions. During reset,
most control and status registers are forced to initial values and the program counter is loaded from the
reset vector (0xFFFE:0xFFFF). On-chip peripheral modules are disabled and I/O pins are initially
configured as general-purpose high-impedance inputs with pull-up devices disabled. The I bit in the
condition code register (CCR) is set to block maskable interrupts so the user program has a chance to
initialize the stack pointer (SP) and system control settings. SP is forced to 0x00FF at reset.
The MC9S08SG8 has the following sources for reset:
Each of these sources, with the exception of the background debug forced reset, has an associated bit in
the system reset status register (SRS).
Freescale Semiconductor
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Multiple sources of reset for flexible system configuration and reliable operation
Reset status register (SRS) to indicate source of most recent reset
Separate interrupt vector for each module (reduces polling overhead) (see
Power-on reset (POR)
External pin reset (PIN)
Low-voltage detect (LVD)
Computer operating properly (COP) timer
Illegal opcode detect (ILOP)
Illegal address detect (ILAD)
Background debug forced reset
Introduction
Features
MCU Reset
MC9S08SG8 MCU Series Data Sheet, Rev. 7
Table
5-2)
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