MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 211

• 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: -

MC68336/376
USER’S MANUAL
BQ2
00
39
P = PAUSE UNTIL NEXT TRIGGER
BYP = BYPASS
IST[1:0] = INPUT SAMPLE TIME
CHAN[5:0] = CHANNEL NUMBER AND END-OF-QUEUE CODE
The ten implemented bits of the CCW word can be read and written. Unimplemented
bits are read as zeros, and write operations have no effect. Each location in the CCW
table corresponds to a location in the result word table. When a conversion is complet-
ed for a CCW entry, the 10-bit result is written in the corresponding result word entry.
The beginning of queue 1 is the first location in the CCW table. The first location of
queue 2 is specified by the beginning of queue 2 pointer BQ2 in QACR2. To dedicate
the entire CCW table to queue 1, queue 2 is disabled, and BQ2 is programmed to any
value greater than 39. To dedicate the entire CCW table to queue 2, queue 1 is
disabled, and BQ2 is specified as the first location in the CCW table.
Figure 8-10 illustrates the operation of the queue structure.
9
P
CONVERSION COMMAND WORD
BYP
8
END OF QUEUE 1
END OF QUEUE 2
BEGIN QUEUE 1
BEGIN QUEUE 2
(CCW) TABLE
10-BIT CONVERSION COMMAND
7
IST[1:0]
6
WORD FORMAT
Figure 8-10 QADC Conversion Queue Operation
5
QUEUED ANALOG-TO-DIGITAL CONVERTER MODULE
4
CHAN[5:0]
3
2
SAMPLE, HOLD, AND
CHANNEL SELECT,
A/D CONVERSION
1
0
15
15
15
0
S
S = SIGN BIT
14
14
14
0
13
13
13
0
RIGHT JUSTIFIED, UNSIGNED RESULT
LEFT JUSTIFIED, UNSIGNED RESULT
12
12
12
0
LEFT JUSTIFIED, SIGNED RESULT
10-BIT RESULT, READABLE IN
11
11
11
RESULT
0
RESULT
THREE 16-BIT FORMATS
10
10
10
RESULT WORD TABLE
0
8
0
8
8
9
9
9
8
8
8
7
7
7
6
6
6
RESULT
5
5
0
5
0
4 3 2 1
4 3 2 1
0
4 3 2 1
0
0
0
MOTOROLA
0
0
0
0
0
0
0
0
0
QADC CQ
8-29
00
39