Atmel XMEGA B, Руководство пользователя

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355 XMEGA B [DATASHEET]
8291B–AVR–01/2013
27.8.3 CTRLA – Control register A

Bit 7:2 – 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 1 – AC1OUT: Analog Comparator 1 Output
Setting this bit makes the output of AC1 available on pin 6 of the port.

Bit 0 – AC0OUT: Analog Comparator 0 Output
Setting this bit makes the output of AC0 available on pin 7 of the port.
27.8.4 CTRLB – Control register B

Bit 7:6 – 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 5:0 – SCALEFAC[5:0]: Voltage Scaling Factor
These bits define the scaling factor for the Vcc voltage scaler. The input to the analog comparator, V
SCALE
, is:
27.8.5 WINCTRL – Window Function Control register
 Bit 7:5 – 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 4 – WEN: Window Mode Enable
Setting this bit enables the analog comparator window mode.

Bits 3:2 – WINTMODE[1:0]: Window Interrupt Mode Settings
These bits configure the interrupt mode for the analog comparator window mode according to Table 27-5 .
Bit 7 6 5 4 3 2 1 0
+0x04
– – – – – – AC1OUT AC0OUT
Read/Write R R R R R R R/W R/W
Initial Value 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
+0x05
– – SCALEFAC[5:0]
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Initial Value 0 0 0 0 0 0 0 0
V
SCALE
V
CC
SCALEFAC 1 +
  
64
------------------------------------------------------------- =
Bit 7 6 5 4 3 2 1 0
+0x06
– – – WEN WINTMODE[1:0] WINTLVL[1:0]
Read/Write R R R R/W R/W R/W R/W R/W
Initial Value 0 0 0 0 0 0 0 0