MC68EN360AI25VL Freescale, MC68EN360AI25VL Datasheet - Page 281

• Manufacturer Part Number: MC68EN360AI25VL
• Manufacturer: Freescale

Specifications of MC68EN360AI25VL

• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 25MHz
• Instruction Set Architecture: RISC
• Operating Supply Voltage (max): 3.3V
• Operating Supply Voltage (min): 2.7V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 240
• Package Type: FQFP
• Lead Free Status / RoHS Status: Compliant

DBFE—Double Bus Fault Monitor Enable
BME—Bus Monitor External Enable
BMT1–BMT0—Bus Monitor Timing
6.9.3.6 PERIODIC INTERRUPT CONTROL REGISTER (PICR). The PICR contains the
interrupt level and the vector number for the periodic interrupt request. This register can be
read or written at any time. Bits 15–11 are unimplemented and always return zero; a write
to these bits has no effect.
PIRQL2–PIRQL0—Periodic Interrupt Request Level
RESET:
These bits select the timeout period for the bus monitor (see Table 6-5).
15
These bits contain the periodic interrupt request level. Table 6-6 lists which interrupt re-
quest level is asserted during an interrupt acknowledge cycle when a periodic interrupt is
generated. The PIT continues to run when the interrupt is disabled.
0
0
1 = Enable the double bus fault monitor function. (Default)
0 = Disable the double bus fault monitor function.
For more information, see 6.3.1.2.3 Double Bus Fault Monitor and Section 5 CPU32+.
0 = Enable bus monitor function for the external bus cycles.
1 = Disable bus monitor function for the external bus cycles. (Default)
For more information see 6.3.1.2.1 Bus Monitor.
14
0
0
When the SWP and SWT bits are modified to select a software
timeout other than the default, the software service sequence
($55 followed by $AA written to the software service register)
must be performed before the new timeout period takes effect.
Use caution with a level 7 interrupt encoding due to the SIM60
interrupt servicing order. See 6.3.1.2 Simultaneous SIM60 Inter-
rupt Sources for the servicing order.
13
0
0
12
0
0
BMT1
Freescale Semiconductor, Inc.
11
0
0
1
1
0
0
For More Information On This Product,
PIRQL2 PIRQL1 PIRQL0
10
0
Table 6-5. BMT Encoding
BMT0
MC68360 USER’S MANUAL
Go to: www.freescale.com
0
1
0
1
9
0
1K System Clocks (CLKO1 Clocks)
512 System Clocks
256 System Clocks
128 System Clocks
NOTE
NOTE
8
0
Bus Monitor Timeout Period
PIV7
7
0
PIV6
6
0
PIV5
System Integration Module (SIM60)
5
0
PIV4
4
0
PIV3
3
1
PIV2
2
1
SUPERVISOR ONLY
PIV1
1
1
PIV0
0
1