MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
14-1
Chapter 14
QADC64E Enhanced Mode Operation
The two queued analog-to-digital converter (QADC) modules on the MPC561/MPC563 devices are
10-bit, unipolar, successive approximation converters. The modules can be configured to operate in one of
two modes, legacy mode (for MPC555 compatibility) and enhanced mode. This chapter describes how the
module operates in enhanced mode. Refer to
Chapter 13, “QADC64E Legacy Mode Operation
,” for
information regarding the QADC64E functionality in legacy mode.
For this revision of the QADC, the name QADC64E implies the enhanced version of the QADC64
module, not just enhanced mode of operation. For simplicity, the names QADC and QADC64E may be
used interchangeably throughout this document.
14.1
QADC64E Block Diagram
displays the major components of the QADC64E modules on the MPC561/MPC563.
Figure 14-1. QADC64E Block Diagram
Queues OF 10-BIT Conversion
Command Words (CCW), 64 Entries
BUS INTERFACE UNIT
DIGITAL
CONTROL
10-bit RESULT Table,
64 Entries
10-bit to 16-bit
RESULT Alignment
10-bit ANALOG to DIGITAL CONVERTER
ANALOG Input Multiplexor and
DIGITAL Signal Functions
EXTERNAL
Triggers
EXTERNAL
MUX Address
Up to 16 ANALOG
Input Signals
REFERENCE
Inputs
ANALOG POWER
Inputs
IMB3
(BIU)
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...