tx_data_cnt.vhd

8251的完整的功能的实现,可以进行编译,综合.

-- Altera Microperipheral Reference Design Version 0802
--**********************************************************************************************
--
--					System:	A8251
--				Component:	Tx Data Counter
--
--					  File:	tx_data_cnt.vhd
--				 Function:	Counts bits intransmitted characters
--											 Specification
--
-- This counter counts transmitted data bits and generates a terminal count signal when the
--	count is equal to the bit count programmed into the Mode Register.  
--
--************************************************************************************																		to better reflect function.
--
--Copyright