MC68332ACFC25 Freescale Semiconductor, MC68332ACFC25 Datasheet - Page 225

• 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.2.13 PICR — Periodic Interrupt Control Register
PIRQL[2:0] — Periodic Interrupt Request Level
PIV[7:0] — Periodic Interrupt Vector
D.2.14 PITR — Periodic Interrupt Timer Register
PTP — Periodic Timer Prescaler Control
PITM[7:0] — Periodic Interrupt Timing Modulus
D.2.15 SWSR — Software Service Register
D.2.16 TSTMSRA — Master Shift Register A
D.2.17 TSTMSRB — Master Shift Register B
MC68332
USER’S MANUAL
15
15
15
0
0
0
0
Contains information concerning periodic interrupt priority and vectoring. PICR[10:0]
can be read or written at any time. PICR[15:11] are unimplemented and always return
zero.
This field determines the priority of periodic interrupt requests.
The bits of this field contain the interrupt vector number supplied by the SIM when the
CPU acknowledges an interrupt request.
Contains the count value for the periodic timer. This register can be read or written at
any time.
This is the 8-bit timing modulus used to determine periodic interrupt rate. Use the fol-
lowing expression to calculate timer period.
When the software watchdog is enabled, a service sequence must be written to this
register within a specific interval. When read, SWSR always returns $00. Register
shown with read value.
Register is used for factory test only.
Register is used for factory test only.
RESET:
RESET:
RESET:
0 = Periodic timer clock not prescaled
1 = Periodic timer clock prescaled by a value of 512
14
14
0
0
0
0
13
13
0
0
0
0
NOT USED
12
12
0
0
0
0
Freescale Semiconductor, Inc.
11
11
For More Information On This Product,
0
0
0
0
10
10
0
0
0
Go to: www.freescale.com
REGISTER SUMMARY
PIRQL
0
9
0
0
MODCLK
8
0
8
PTP
8
7
0
7
0
0
7
0
0
6
0
0
0
0
5
0
0
0
0
4
0
0
PIV
0
PITM
1
3
0
0
0
1
2
0
0
0
$YFFA22
$YFFA24
$YFFA27
$YFFA30
$YFFA32
1
1
0
0
0
D-11
0
1
0
0
0
0
0