MC68340AG25E Freescale Semiconductor, MC68340AG25E Datasheet - Page 100

• Manufacturer Part Number: MC68340AG25E
• Description: IC MPU 32BIT 25MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG25E

• Processor Type: M683xx 32-Bit
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• No. Of I/o's: 16
• Cpu Speed: 25MHz
• No. Of Timers: 2
• Embedded Interface Type: UART
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: M683xx
• Core: CPU32
• Maximum Clock Frequency: 25 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Details

4.2.2 System Configuration and Protection Operation
The SIM40 allows the user to control certain features of system configuration by writing
bits in the module configuration register (MCR). This register also contains read-only
status bits that show the state of the SIM40.
All M68000 family members are designed to provide maximum system safeguards. As an
extension of the family, the MC68340 promotes the same basic concepts of safeguarded
design present in all M68000 members. In addition, many functions that normally must be
provided by external circuits are incorporated in this device. The following features are
provided in the system configuration and protection function:
SIM40 Module Configuration
Reset Status
MOTOROLA
The SIM40 allows the user to configure the system to the particular requirements. The
functions include control of FREEZE and show cycle operation, the function of the CS
signals, the access privilege of the supervisor/user registers, the level of interrupt
arbitration, and automatic vectoring for external interrupts.
The reset status register provides the user with information on the cause of the most
recent reset. The possible causes of reset include: external, power-up, software
watchdog, double bus fault, loss of clock, and RESET instruction.
NOTE: $XXXXX is the value contained in the MBAR bits BA31-BA12.
($0003FF00
FC=0111)
MBAR
Figure 4-1. SIM40 Module Register Block
Freescale Semiconductor, Inc.
RELOCATABLE
(TYPICAL)
MC68340
MODULE
For More Information On This Product,
BLOCK
RAM
MC68340 USER’S MANUAL
Go to: www.freescale.com
$00000000
$FFFFFFFF
$XXXXXFFF
$XXXXX000
TIMER MODULES
SERIAL PORTS
SIM 40
DMA
$FFF
$7BF
$780
$721
$700
.
$67F
$600
$07F
$000
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