MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 426
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MMC2114
Manufacturer Part Number
MMC2114
Description
M CORE Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MMC2114.pdf
(654 pages)
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Queued Analog-to-Digital Converter (QADC)
Advance Information
426
19.8.5
19.8.5.1
19.8.5.2
19.8.5.3
19.8.6
19.8.6.1
19.8.6.2
19.8.7
19.8.8
19.8.8.1
19.8.8.2
19.8.8.3
19.9
19.9.1
19.9.2
19.9.2.1
19.9.2.2
19.9.3
19.9.3.1
19.9.3.2
19.9.3.3
19.9.3.4
19.9.3.5
19.9.3.6
19.9.3.7
19.9.3.8
19.9.3.9
19.10 Digital Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .478
19.10.1 Queue Priority Timing Examples . . . . . . . . . . . . . . . . . . . . 478
19.10.1.1
19.10.1.2
19.10.2 Boundary Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492
19.10.3 Scan Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493
19.10.4 Disabled Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494
19.10.5 Reserved Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494
19.10.6 Single-Scan Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494
19.10.6.1
Freescale Semiconductor, Inc.
For More Information On This Product,
Queued Analog-to-Digital Converter (QADC)
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470
Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .442
Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .453
Conversion Command Word Table (CCW) . . . . . . . . . . . . 463
Result Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .468
Result Coherency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470
External Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471
Analog Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474
QADC Control Register 0 (QACR0) . . . . . . . . . . . . . . . . 442
QADC Control Register 1 (QACR1) . . . . . . . . . . . . . . . . 445
QADC Control Register 2 (QACR2) . . . . . . . . . . . . . . . . 448
QADC Status Register 0 (QASR0). . . . . . . . . . . . . . . . . 453
QADC Status Register 1 (QASR1). . . . . . . . . . . . . . . . . 462
Right-Justified Unsigned Result Register (RJURR) . . . . 468
Left-Justified Signed Result Register (LJSRR) . . . . . . . 469
Left-Justified Unsigned Result Register (LJURR) . . . . . 470
External Multiplexing Operation . . . . . . . . . . . . . . . . . . .471
Module Version Options. . . . . . . . . . . . . . . . . . . . . . . . . 473
Analog-to-Digital Converter Operation . . . . . . . . . . . . . .474
Conversion Cycle Times . . . . . . . . . . . . . . . . . . . . . . . . 475
Channel Decode and Multiplexer . . . . . . . . . . . . . . . . . . 476
Sample Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .476
Digital-to-Analog Converter (DAC) Array . . . . . . . . . . . . 476
Comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477
Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477
Successive Approximation Register. . . . . . . . . . . . . . . . 477
State Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .477
Queue Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .478
Queue Priority Schemes . . . . . . . . . . . . . . . . . . . . . . . . 481
Software-Initiated Single-Scan Mode. . . . . . . . . . . . . . . 495
Go to: www.freescale.com
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
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