Jameco-electronics Rabbit 3000 Manual do Utilizador descarregar pdf (Página 117)

108 Rabbit 3000 Microprocessor

Table 7-20. Input Capture Control Register

Input Capture Control Register (ICCR) (Address = 0x57)

Bit(s) Value Description

7:2 These bits are ignored.

1:0 00 Input Capture interrupts are disabled.

01 Input Capture interrupt use Interrupt Priority 1.

10 Input Capture interrupt use Interrupt Priority 2.

11 Input Capture interrupt use Interrupt Priority 3.

Table 7-21. Input Capture Trigger x Register

Input Capture Trigger x Register (ICT1R) (Address = 0x58)

(ICT2R) (Address = 0x5C)

Bit(s) Value Description

7:6 00 Disable the counter.

01 The counter runs from the Start condition until the Stop condition.

10 The counter runs continuously.

11 The counter runs continuously, until the Stop condition.

5:4 00 Disable the count latching function.

01 Latch the count on the Stop condition only.

10 Latch the count on the Start condition only.

11 Latch the count on either the Start or Stop condition.

3:2 00 Ignore the starting input.

01 The Start condition is the rising edge of the starting input.

10 The Start condition is the falling edge of the starting input.

11 The Start condition is either edge of the starting input.

1:0 00 Ignore the ending input.

01 The Stop condition is the rising edge of the ending input.

10 The Stop condition is the falling edge of the ending input.

11 The Stop condition is either edge of the ending input.

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Jameco-electronics Rabbit 3000 Manual do Utilizador Página 117