167
XMEGA A [MANUAL]
8077I–AVR–11/2012
14.12.6 INTCTRLA – Interrupt Enable register A
Bit 7:4 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to zero
when this register is written.
Bit 3:2 – ERRINTLVL[1:0]:Timer Error Interrupt Level
These bits enable the timer error interrupt and select the interrupt level as described in “Interrupts and Programmable
Bit 1:0 – OVFINTLVL[1:0]:Timer Overflow/Underflow Interrupt Level
These bits enable the timer overflow/underflow interrupt and select the interrupt level as described in “Interrupts and
14.12.7 INTCTRLB – Interrupt Enable register B
Bit 7:0 – CCxINTLVL[7:0] - Compare or Capture x Interrupt Level:
These bits enable the timer compare or capture interrupt for channel x and select the interrupt level as described in
14.12.8 CTRLFCLR/CTRLFSET – Control register F Clear/Set
This register is mapped into two I/O memory locations, one for clearing (CTRLxCLR) and one for setting the register bits
(CTRLxSET) when written. Both memory locations will give the same result when read.
The individual status bit can be set by writing a one to its bit location in CTRLxSET, and cleared by writing a one to its bit
location in CTRLxCLR. This allows each bit to be set or cleared without use of a read-modify-write operation on a single
register.
14.12.8.1 CTRLFCLR – Control register F Clear
14.12.8.2 CTRLFSET – Control register F Set
Bit
76543210
+0x06
ERRINTLVL[1:0]
OVFINTLVL[1:0]
Read/Write
RRRR
R/W
Initial Value
00000000
Bit
7
65
43
2
1
0
+0x07
CCDINTLVL[1:0]
CCCINTLVL[1:0]
CCBINTLVL[1:0]
CCAINTLVL[1:0]
Read/Write
R/W
Initial Value
0
Bit
7
65
43
210
+0x08
–CMD[1:0]
LUPD
DIR
Read/Write
R
R/W
Initial Value
0
00
000
Bit
7
65
43
210
+0x09
–CMD[1:0]
LUPD
DIR
Read/Write
R
R/W
Initial Value
0
00
000
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