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Commit	Line	Data
	1	Sony NEWS keyboard converter
	2	============================
	3	Sony NEWS is a BSD workstation with 68K/MIPS released in 1987 in Japan.
	4
	5	- http://en.wikipedia.org/wiki/Sony_NEWS
	6	- https://www.sony.net/SonyInfo/CorporateInfo/History/SonyHistory/2-12.html#block3
	7
	8	This converter allows NEWS keyboard to be connected to modern PC via USB. It works with NWP-5461 and NWP-411A.
	9
	10	How DIP switches work is unknown and you may need to turn all switches off with this converter.
	11
	12	Limitations:
	13	- Speaker/Buzzer is not supported.
	14	- LEDs on NWP-5461 is not supported.
	15
	16	Pics:
	17	- http://imgur.com/a/JyMzw
	18
	19	Discussion:
	20	- https://geekhack.org/index.php?topic=25759
	21
	22
	23
	24	Protocol
	25	--------
	26	NEWS keyboard protocol is a usual asynchronous serial communication. You can receive data from the keyboard easily with UART of micro controller.
	27
	28	- TTL level
	29	- 9600bps
	30	- 1-start bit
	31	- 8-data bit
	32	- non-parity
	33	- 1-stop bit.
	34
	35	Its scan code is one byte consists of 1-bit release(break) flag at MSB and 7-bit code.
	36	For example 0x29 is sent when 'a' key is pressed and 0xA9 when released.
	37
	38	MSB LSB
	39	7 6 5 4 3 2 1 0 bit
	40	\| \| \| \| \| \| \| \|
	41	\| +-+-+-+-+-+-+-- scan code(00-7F)
	42	+---------------- break flag: sets when released
	43
	44
	45	Scan Codes
	46	----------
	47	### NWP-5461
	48
	49	,---. ,------------------------, ,------------------------. ,---------.
	50	\|Pow\| \| F1 \| F2 \| F3 \| F4 \| F5 \| \| F6 \| F7 \| F8 \| F9 \| F10\| \| F11\| F12\| ,-----------.
	51	`---' `------------------------' `------------------------' `---------' \| *\| /\| +\|
	52	,-------------------------------------------------------------. ,---. ,---------------\|
	53	\|Esc\| 1\| 2\| 3\| 4\| 5\| 6\| 7\| 8\| 9\| 0\| -\| =\| \\| BS \| \|Hlp\| \| 7\| 8\| 9\| -\|
	54	\|-------------------------------------------------------------\| \|---\| \|---------------\|
	55	\|Tab \| Q\| W\| E\| R\| T\| Y\| U\| I\| O\| P\| [\| ]\|Del\| \| \|Ins\| \| 4\| 5\| 6\| ,\|
	56	\|---------------------------------------------------------' \| \|---\| \|---------------\|
	57	\|Ctrl \| A\| S\| D\| F\| G\| H\| J\| K\| L\| ;\| '\| `\|Return\| \|Clr\| \| 1\| 2\| 3\| \|
	58	\|-------------------------------------------------------------\| \|---\| \|-----------\|Ent\|
	59	\|Shift \| Z\| X\| C\| V\| B\| N\| M\| ,\| ,\| /\| \|Shift \| \|PgU\| \| 0\| .\| Up\| \|
	60	\|-------------------------------------------------------------\| \|---\| \|---------------\|
	61	\|Alt \|Gui \|Alt \| Space \| \|Gui\|App\|Ctrl \| \|PgD\| \|Tab\|Lef\|Dow\|Rig\|
	62	`-------------------------------------------------------------' `---' `---------------'
	63
	64	,---. ,------------------------, ,------------------------. ,---------.
	65	\| 7A\| \| 01 \| 02 \| 03 \| 04 \| 05 \| \| 06 \| 07 \| 08 \| 09 \| 0A \| \| 68 \| 69 \| ,-----------.
	66	`---' `------------------------' `------------------------' `---------' \| 64\| 65\| 52\|
	67	,-------------------------------------------------------------. ,---. ,---------------\|
	68	\| 0B\| 0C\| 0D\| 0E\| 0F\| 10\| 11\| 12\| 13\| 14\| 15\| 16\| 17\| 18\| 19 \| \| 6A\| \| 4B\| 4C\| 4D\| 4E\|
	69	\|-------------------------------------------------------------\| \|---\| \|---------------\|
	70	\| 1A \| 1B\| 1C\| 1D\| 1E\| 1F\| 20\| 21\| 22\| 23\| 24\| 25\| 26\| 27\| \| \| 6B\| \| 4F\| 50\| 51\| 56\|
	71	\|---------------------------------------------------------' \| \|---\| \|---------------\|
	72	\| 28 \| 29\| 2A\| 2B\| 2C\| 2D\| 2E\| 2F\| 30\| 31\| 32\| 33\| 34\| 35 \| \| 6C\| \| 53\| 54\| 55\| \|
	73	\|-------------------------------------------------------------\| \|---\| \|-----------\| 5A\|
	74	\| 36 \| 37\| 38\| 39\| 3A\| 3B\| 3C\| 3D\| 3E\| 3F\| 40\| 41\| 42 \| \| 6D\| \| 57\| 59\| 58\| \|
	75	\|-------------------------------------------------------------\| \|---\| \|---------------\|
	76	\| 43 \| 44 \| 45 \| 46 \| 47 \| 48\| 49\| 4A \| \| 6E\| \| 66\| 5B\| 5C\| 5D\|
	77	`-------------------------------------------------------------' `---' `---------------'
	78
	79
	80
	81	Pinouts
	82	-------
	83	### NWP-5461
	84
	85	-------------
	86	\ 1 2 3 x 5 /
	87	\ 6 7 8 9 /
	88	---------
	89	1 VCC
	90	2 BZ(Speaker)
	91	3 Keyboard Data(from keyboard MCU TxD)
	92	4 NC
	93	5 GND
	94	6 Keyboard Command?(to MCU RxD via two schmitt triggers of Z8 74LS14)
	95	7 Mouse Data(from Mouse Ext connector)
	96	8 Power switch(directly to the switch via diode)
	97	9 FG
	98
	99	I have three NWP-5461s and GND and FG is connected in one of them for some reason.
	100	- Serial No.14178(EH0100 5 04 04 0173) GND and FG is not tied.
	101	- Serial No.14580(EH0100 5 09 12 0211) GND and FG is not tied.
	102	- Serial No.17458(EH0100 7 09 08 0104) GND and FG is not tied.
	103
	104
	105	### NWP-411A
	106
	107	-------------
	108	\ 1 2 3 x 5 /
	109	\ x 7 x 9 /
	110	---------
	111	1 VCC
	112	2 BZ(Speaker)
	113	3 Keyboard Data(from keyboard MCU TxD)
	114	4 NC
	115	5 GND
	116	6 NC
	117	7 Mouse Data(from Mouse Ext connector)
	118	8 NC
	119	9 FG
	120	NOTE: These are just from my guess and not confirmed.