MC68376BAMFT20 Freescale Semiconductor, MC68376BAMFT20 Datasheet - Page 199

• Manufacturer Part Number: MC68376BAMFT20
• Manufacturer: Freescale Semiconductor

Specifications of MC68376BAMFT20

• Cpu Family: 68K/M683xx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 20MHz
• Interface Type: QSPI/SCI
• Program Memory Type: ROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 7.5KB
• # I/os (max): 18
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• On-chip Adc: 16-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 160
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

MC68336/376
USER’S MANUAL
occur for queue 1 and queue 2
Queue 1 active/trigger event
Queue 2 active/trigger event
Simultaneous trigger events
Figure 8-7 shows the CCW format and an example of using pause to create sub-
queues. Queue 1 is shown with four CCWs in each subqueue and queue 2 has two
CCWs in each subqueue.
Subqueues paused
occurs for queue 2
occurs for queue 1
Queue State
Inactive
QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE
Table 8-3 Queue 1 Priority Assertion
A trigger event for queue 1 or queue 2 causes the corresponding queue execution
to begin.
Queue 2 cannot begin execution until queue 1 reaches completion or the paused
state. The status register records the trigger event by reporting the queue 2 status
as trigger pending. Additional trigger events for queue 2, which occur before exe-
cution can begin, are recorded as trigger overruns.
The current queue 2 conversion is aborted. The status register reports the queue
2 status as suspended. Any trigger events occurring for queue 2 while queue 2 is
suspended are recorded as trigger overruns. Once queue 1 reaches the comple-
tion or the paused state, queue 2 begins executing again. The programming of the
resume bit in QACR2 determines which CCW is executed in queue 2.
Queue 1 begins execution and the queue 2 status is changed to trigger pending.
The pause feature can be used to divide queue 1 and/or queue 2 into multiple sub-
queues. A subqueue is defined by setting the pause bit in the last CCW of the sub-
queue.
Result
MOTOROLA
8-17