MC68332ACFC25 Freescale Semiconductor, MC68332ACFC25 Datasheet - Page 224

• Manufacturer Part Number: MC68332ACFC25
• Description: IC MCU 32BIT 25MHZ 132-PQFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68332ACFC25

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SCI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Type: ROMless
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 132-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

D.2.12 SYPCR — System Protection Control Register
SWE — Software Watchdog Enable
SWP — Software Watchdog Prescale
SWT[1:0] — Software Watchdog Timing
HME — Halt Monitor Enable
BME — Bus Monitor External Enable
BMT[1:0] — Bus Monitor Timing
D-10
15
RESET:
SYPCR controls system monitor functions, software watchdog clock prescaling, and
bus monitor timing. This register can be written once following power-on or reset.
This field selects software watchdog time-out period.
This field selects bus monitor time-out period.
0 = Software watchdog disabled
1 = Software watchdog enabled
0 = Software watchdog clock not prescaled
1 = Software watchdog clock prescaled by 512
0 = Disable halt monitor function
1 = Enable halt monitor function
0 = Disable bus monitor function for an internal to external bus cycle.
1 = Enable bus monitor function for an internal to external bus cycle.
NOT USED
Freescale Semiconductor, Inc.
For More Information On This Product,
BMT
00
01
10
11
SWP
0
0
0
0
1
1
1
1
Go to: www.freescale.com
Software Watchdog Ratio
REGISTER SUMMARY
Bus Monitor Period
Bus Monitor Time-out Period
8
SWT
64 System Clocks
32 System Clocks
16 System Clocks
00
01
10
11
00
01
10
11
8 System Clocks
SWE
7
1
MODCLK
SWP
6
Ratio
2
2
2
2
2
2
2
2
11
13
15
18
20
22
24
9
5
0
SWT
4
0
HME
3
0
USER’S MANUAL
BME
2
0
$YFFA21
1
0
MC68332
BMT
0
0