Step 9: Name the Pins

To name the input and output pins, follow these steps:

1. With the Selection and Smart Drawing Tool, double-click the default pin_name pin name of the first input pin symbol you entered.

2. To rename the pin_name default block name, type clkx2 and press Enter.

   You can also specify the pin name by double-clicking the pin, and then specifying the pin name in the General tab of the Pin Properties dialog box.

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3. Repeat steps 1 and 2 to rename each of the pins with the following names:

   Pin Type:	Rename As:	Description:
   INPUT	clkx2 (already entered)	Derived clock for the FIR filter.
   INPUT	clk	Base clock for the FIR filter.
   INPUT	d[7..0]	Data input to the FIR filter.
   INPUT	reset	Reset signal for the FIR filter.
   INPUT	newt	Input signal that loads the data input d[7..0] into the taps function.
   OUTPUT	yn_out[7..0]	The FIR filter output data.
   OUTPUT	yvalid	Indicates that the yn[7..0] filter output of the acc function is valid.
   OUTPUT	next	Indicates that the FIR filter is ready for the next 8-bit data input.




4. Move the INPUT and OUTPUT pin symbols so they line up with the appropriate symbols or blocks, as shown in the following illustration:

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5. Choose Save (File menu).