ps2_host_keyboard

Files
file	ps2_host_keyboard.cdl
	PS2 interface converter for keyboard as host.

Detailed Description

Modules

module ps2_host_keyboard::ps2_host_keyboard	(	clock	clk,
		input bit	reset_n,
		input t_ps2_rx_data	ps2_rx_data,
		output t_ps2_key_state	ps2_key
	)

Module to convert from PS2 receive data, from a host PS2 receive module, in to keyboard data (up/down, extended key).

An incoming valid byte helps build the result. An 0xe0 sets the extended bit. A 0xf0 sets the released bit. The rest set the key field, and valid out. valid is made in to a single cycle pulse.

Parameters

[in]	clk	Clock
[in]	reset_n	Active low reset
[in]	ps2_rx_data	Receive data from a ps2_host module
[out]	ps2_key	PS2 key decoded