MC68340PV16VE Freescale Semiconductor, MC68340PV16VE Datasheet - Page 124

• Manufacturer Part Number: MC68340PV16VE
• Description: IC MCU 32BIT 16MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340PV16VE

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

PIV7–PIV0—Periodic Interrupt Vector Bits 7–0
4.3.2.7 PERIODIC INTERRUPT TIMER REGISTER (PITR). The PITR contains control for
prescaling the software watchdog and periodic timer as well as the count value for the
periodic timer. This register can be read or written at any time. Bits 15–10 are not
implemented and always return zero when read. A write does not affect these bits.
PITR
Bits 15–10—Reserved
SWP—Software Watchdog Prescale
PTP—Periodic Timer Prescaler Control
PITR7–PITR0—Periodic Interrupt Timer Register Bits 7–0
MOTOROLA
RESET:
15
These bits contain the value of the vector generated during an IACK cycle in response
to an interrupt from the periodic timer. When the SIM40 responds to the IACK cycle, the
periodic interrupt vector from the PICR is placed on the bus. This vector number is
multiplied by four to form the vector offset, which is added to the vector base register to
obtain the address of the vector.
0
0
This bit controls the software watchdog clock source as shown in 4.3.2.5 System
Protection Control Register (SYPCR).
The SWP reset value is the inverse of the MODCK bit state on the rising edge of reset.
This bit contains the prescaler control for the periodic timer.
The PTP reset value is the inverse of the MODCK bit state on the rising edge of reset.
The remaining bits of the PITR contain the count value for the periodic timer. A zero
value turns off the periodic timer.
1 = Software watchdog clock prescaled by a value of 512.
0 = Software watchdog clock not prescaled.
1 = Periodic timer clock prescaled by a value of 512.
0 = Periodic timer clock not prescaled.
14
0
0
13
0
0
12
0
0
Freescale Semiconductor, Inc.
11
0
0
For More Information On This Product,
10
0
0
MC68340 USER’S MANUAL
Go to: www.freescale.com
MODCK MODCK
SWP
9
PTP
8
PITR7
0
7
PITR6
0
6
PITR5
0
5
PITR4
0
4
PITR3
0
3
PITR2
Supervisor Only
0
2
PITR1
0
1
$024
PITR0
4- 27
0
0