MPC5604B/C Microcontroller Reference Manual, Rev. 8
608 Freescale Semiconductor
Address:
Base + 0x0000 Access: User read/write
0123456789101112131415
R
OWREN
WLSIDE
MODE
0000
NSTART
0
JTRGEN
JEDGE
JSTART
00
CTUEN
0
W
Reset0000000000000000
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R0000000
ADCLK
SEL
ABORT
CHAIN
ABORT
ACKO
0000
PWDN
W
Reset0000000000000001
Figure 25-8. Main Configuration Register (MCR)
Table 25-7. MCR field descriptions
Field Description
OWREN Overwrite enable
This bit enables or disables the functionality to overwrite unread converted data.
0 Prevents overwrite of unread converted data; new result is discarded
1 Enables converted data to be overwritten by a new conversion
WLSIDE Write left/right-aligned
0 The conversion data is written right-aligned.
1 Data is left-aligned (from 15 to (15 – resolution + 1)).
The WLSIDE bit affects all the CDR registers simultaneously. See Figure 25-35 and Figure 25-35.
MODE One Shot/Scan
0 One Shot Mode—Configures the normal conversion of one chain.
1 Scan Mode—Configures continuous chain conversion mode; when the programmed chain
conversion is finished it restarts immediately.
NSTART Normal Start conversion
Setting this bit starts the chain or scan conversion. Resetting this bit during scan mode causes the
current chain conversion to finish, then stops the operation.
This bit stays high while the conversion is ongoing (or pending during injection mode).
0 Causes the current chain conversion to finish and stops the operation
1 Starts the chain or scan conversion
JTRGEN Injection external trigger enable
0 External trigger disabled for channel injection
1 External trigger enabled for channel injection
JEDGE Injection trigger edge selection
Edge selection for external trigger, if JTRGEN = 1.
0 Selects falling edge for the external trigger
1 Selects rising edge for the external trigger
JSTART Injection start
Setting this bit will start the configured injected analog channels to be converted by software.
Resetting this bit has no effect, as the injected chain conversion cannot be interrupted.
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