XC886/888CLM
Analog-to-Digital Converter
User’s Manual
16-14
V1.3, 2010-02
ADC, V 1.0
16.4.5
Parallel Request Source
A parallel request source generates one or more channel conversion requests in parallel.
The requests are always treated one after the other in a pre-defined sequence (higher
channel numbers before lower channel numbers).
The parallel source register description can be found in
16.4.5.1
Overview
The parallel request source at arbitration slot 1 generates one or more conversion
requests for channel numbers between 4 and 7 in parallel. The requests are always
treated one after the other (in separate arbitration rounds) in a predefined sequence
(higher channel numbers before lower channel numbers).
The parallel request source consists of a conversion request control register (CRCR1),
a conversion request pending register (CRPR1) and a conversion request mode register
(CRMR1). The contents of the conversion request control register are copied (overwrite)
to the conversion request pending register when a selected load event (LDE) occurs.
The type of the event defines the behavior and the trigger of the request source.
The activation of a conversion request to the arbiter may be started if the content of the
conversion pending register is not 0. The highest bit position number among the pending
bits with values equal to 1 specifies the channel number for conversion. To take part in
the source arbitration, both the REQCHNRV and REQPND signals must be 1.
Refer to
for description of the parallel request source registers.
*
Содержание XC886CLM
Страница 1: ...User s Manual V1 3 2010 02 Microcontrollers 8 Bit XC886 888CLM 8 Bit Single Chip Microcontroller...
Страница 3: ...User s Manual V1 3 2010 02 Microcontrollers 8 Bit XC886 888CLM 8 Bit Single Chip Microcontroller...
Страница 324: ...XC886 888CLM Serial Interfaces User s Manual 12 52 V1 3 2010 02 Serial Interfaces V 1 0...
Страница 663: ...w w w i n f i n e o n c o m Published by Infineon Technologies AG...