DSPIC30F6015 Microchip Technology Inc., DSPIC30F6015 Datasheet - Page 92
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DSPIC30F6015
Manufacturer Part Number
DSPIC30F6015
Description
High-performance, 16-bit Digital Signal Controllers
Manufacturer
Microchip Technology Inc.
Datasheet
1.DSPIC30F6015.pdf
(236 pages)
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dsPIC30F6010A/6015
14.7.2
When the CPU is placed in the Idle mode and the QEI
module is configured in the 16-bit Timer mode, the
16-bit
(QEICON<13>) = 0. This bit defaults to a logic ‘0’ upon
executing POR and BOR. For halting the timer module
during the CPU Idle mode, QEISIDL should be set
to ‘1’.
If the QEISIDL bit is cleared, the timer will function
normally, as if the CPU Idle mode had not been
entered.
DS70150C-page 90
timer
TIMER OPERATION DURING CPU
IDLE MODE
will
operate
if
the
QEISIDL
bit
14.8
The Quadrature Encoder Interface has the ability to
generate an interrupt on occurrence of the following
events:
• Interrupt on 16-bit up/down position counter
• Detection of qualified index pulse, or if CNTERR
• Timer period match event (overflow/underflow)
• Gate accumulation event
The QEI Interrupt Flag bit, QEIIF, is asserted upon
occurrence of any of the above events. The QEIIF bit
must be cleared in software. QEIIF is located in the
IFS2 STATUS register.
Enabling an interrupt is accomplished via the respec-
tive enable bit, QEIIE. The QEIIE bit is located in the
IEC2 Control register.
rollover/underflow
bit is set
Quadrature Encoder Interface
Interrupts
© 2007 Microchip Technology Inc.