MC68MH360AI33L Freescale Semiconductor, MC68MH360AI33L Datasheet - Page 147

• Manufacturer Part Number: MC68MH360AI33L
• Description: IC MPU QUICC 33MHZ 240-FQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68MH360AI33L

• Processor Type: M683xx 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 240-FQFP
• Family Name: M68xxx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 33MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 240
• Package Type: FQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Compliant

C.3.1.2 Deactivation Procedure
When the clock-master S/T interface is deactivated, the QUICC32 receives an interrupt
indicating the deactivation status (IRQ3 —register NR3 bit 3— meaning Info 0 of
Figure C-9 has been received). Then, if another S/T interface is active, its TCLK signal
must be selected to become the clock master; otherwise, the QUICC32 can select the BRG
to be the clock master.
As shown in Figure C-9, the TCLK signal is disabled about 72.8 s after the interruption.
Therefore, the QUICC32 has 72.8 s to react to the IRQ and to select another clock master.
Figure C-9. Timing Diagram for a Deactivation (Always Initiated by the NT)
Time
1: 500 ms (= 2 S/T Frames x 250 ms)
2: 72.8 ms (= 14 bit x 5.2 ms)
Appendix C. Connecting ISDN Multiple S/T or U Interfaces to QUICC32
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
TCLK
Disabled
IRQ3
(Rx Info 0)
TE
TX
RX
RX
TX
Info 3
Info 4
Info 0
Info 0
RX
RX
TX
TX
(Rx Info 0)
NT
IRQ3