MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 354

• Manufacturer Part Number: MC68376BGMAB20
• Description: IC MCU 32BIT 8K ROM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68376BGMAB20

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Type: ROMless
• Ram Size: 7.5K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 160-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

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