MC68376BAMFT20 Freescale Semiconductor, MC68376BAMFT20 Datasheet - Page 354

• 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

TOR2 — Queue 2 Trigger Overrun
QS[3:0] — Queue Status
CWP[5:0] — Command Word Pointer
D-36
MOTOROLA
TOR2 indicates that an unexpected queue 2 trigger event has occurred. TOR2 can be
set when queue 2 is in the active, suspended, and trigger pending states.
A trigger event generated by a transition on ETRIG2 or by the periodic/interval timer
may be recorded as a trigger overrun. TOR2 can only be set when using an external
trigger mode or a periodic/interval timer mode. Trigger overruns cannot occur when
the software initiated single-scan mode and the software initiated continuous-scan
mode are selected.
This 4-bit read-only field indicates the current condition of queue 1 and queue 2.
QS[3:2] are associated with queue 1, and QS[1:0] are associated with queue 2. Since
the queue priority scheme interlinks the operation of queue 1 and queue 2, the status
bits should be considered as one 4-bit field.
Table D-27 shows the bit encodings of the QS field.
CWP indicates which CCW is executing at present, or was last completed. The CWP
is a read-only field; writes to it have no effect. The CWP allows software to monitor the
progress of the QADC scan sequence. The CWP field is a CCW word pointer with a
valid range of 0 to 39.
0 = No unexpected queue 1 trigger events have occurred.
1 = At least one unexpected queue 1 trigger event has occurred.
0 = No unexpected queue 2 trigger events have occurred.
1 = At least one unexpected queue 2 trigger event has occurred.
QS[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Table D-27 Queue Status
REGISTER SUMMARY
Queue 1 idle, Queue 2 idle
Queue 1 idle, Queue 2 paused
Queue 1 idle, Queue 2 active
Queue 1 idle, Queue 2 trigger pending
Queue 1 paused, Queue 2 idle
Queue 1 paused, Queue 2 paused
Queue 1 paused, Queue 2 active
Queue 1 paused, Queue 2 trigger pending
Queue 1 active, Queue 2 idle
Queue 1 active, Queue 2 paused
Queue 1 active, Queue 2 suspended
Queue 1 active, Queue 2 trigger pending
Reserved
Reserved
Reserved
Reserved
Description
USER’S MANUAL
MC68336/376