MC68F375BGMZP33 Freescale Semiconductor, MC68F375BGMZP33 Datasheet - Page 110

• Manufacturer Part Number: MC68F375BGMZP33
• Description: IC MPU 32BIT 33MHZ 217-PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68F375BGMZP33

• Processor Type: M683xx 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 217-PBGA
• Processor Series: M683xx
• Core: CPU32
• Data Bus Width: 32 bit
• Program Memory Type: Flash
• Program Memory Size: 256 KB
• Data Ram Size: 10 KB
• Interface Type: SPI, SCI, CAN
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 16
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Lead Free Status / Rohs Status: No

4.4.6.1 Software Watchdog Service Register
SWSR — Software Watchdog Service Register
4.4.7 Periodic Interrupt Timer
MC68F375
REFERENCE MANUAL
EXTAL
NOTES:
OSCILLATOR
CRYSTAL
1. This register is shown with a read value.
This register can be read or written at any time. Bits [15:8] are reserved and will always
read zero.
The periodic interrupt timer (PIT) allows the generation of interrupts of specific priority
at predetermined intervals. This capability is often used to schedule control system
tasks that must be performed within time constraints. The PIT consists of a prescaler,
a modulus counter, and registers that determine interrupt timing, priority and vector
assignment. Refer to
about interrupt exception processing.
7
0
XTAL
Figure 4-8 Periodic Interrupt Timer and Software Watchdog Timer
WATCHDOG
SOFTWARE
LPSTOP
RESET
SWT1
SWT0
SWE
6
0
128
SINGLE-CHIP INTEGRATION MODULE 2 (SCIM2E)
Freescale Semiconductor, Inc.
For More Information On This Product,
SOFTWARE WATCHDOG TIMER
4.8.1 Interrupt Exception Processing
(2
15
5
0
CLOCK SELECT
AND DISABLE
DIVIDER CHAIN — 4 TAPS)
Go to: www.freescale.com
Rev. 25 June 03
4
0
SWSR
SWSR[7:0]
FREEZE
FASTREF/PF0
V
DDSYN
1
2
9
3
0
PRESCALER
/MODCLK
PERIODIC INTERRUPT TIMER
(8-BIT MODULUS COUNTER)
PICR
2
0
16 PIT/WATCHDOG BLOCK
for further information
PITR
SELECT
CLOCK
1
0
4
0xYF FA27
MOTOROLA
PIT
INTERRUPT
LSB
SWP
PTP
0
0
4-28