diff options
Diffstat (limited to 'src/mame/drivers/votrhv.cpp')
-rw-r--r-- | src/mame/drivers/votrhv.cpp | 80 |
1 files changed, 40 insertions, 40 deletions
diff --git a/src/mame/drivers/votrhv.cpp b/src/mame/drivers/votrhv.cpp index 2b3fea5b6e7..398de89d918 100644 --- a/src/mame/drivers/votrhv.cpp +++ b/src/mame/drivers/votrhv.cpp @@ -7,46 +7,46 @@ * ******************************************************************************/ /* - The HC-110 and HC-120 both consist of 3 boards: - 1. An 'embedded system' 6800 board with two output latches, one input - latch, and two 'resume/reset' latches which pull the 6800 is out of - reset on a rising edge, as a form of power saving. (pcb 1816?) - 2. A keyboard handler pcb; this is different on the HC-110 (where it is - made by a 3rd party company for the 128-key input) and the HC-120 - (where it was made by votrax/phonic mirror, pcb 1817?) - 3. The voice synthesizer pcb 1818c, encased in epoxy. It is a discrete - synthesizer roughly equivalent to an SC-01 or VSK, it has external - pins to allow control of speech pitch and rate in addition to the - typical 2 inflection pins. - - Notes: Electronic Arrays, Inc. who made the EA8316 CMOS mask ROMs was - bought out by NEC in 1978. - - TODO: 1818c discrete speech synth device - - The 1818C SYNTHESIZER BOARD is mentioned as one of two speech - synthesizers described in US Patent 4,130,730 in figures 3, 4a and 4b - (the Votrax VSK/VSL is the other device, described in figures 1, 2a, - and 2b) - The 1818C uses three Motorola MCM14524 256x4 CMOS MASK ROMs to hold - the phoneme parameters. - (This is mentioned in 4,130,730 column 11 line 31.) - - Motorola MCM14524: - +---..---+ - /CLK -> | 1 16 | -- VDD (up to 18v) - CE -> | 2 15 | <- A0 - B0 <- | 3 14 | <- A1 - B1 <- | 4 13 | <- A7 - B2 <- | 5 12 | <- A6 - B3 <- | 6 11 | <- A5 - A2 -> | 7 10 | <- A4 - (0v)VSS -- | 8 9 | <- A3 - +--------+ - see http://bitsavers.org/components/motorola/_dataBooks/1978_Motorola_CMOS_Data_Book.pdf - page 488 - - TODO: make the two latcha/b flops combine together using input_merger + The HC-110 and HC-120 both consist of 3 boards: + 1. An 'embedded system' 6800 board with two output latches, one input + latch, and two 'resume/reset' latches which pull the 6800 is out of + reset on a rising edge, as a form of power saving. (pcb 1816?) + 2. A keyboard handler pcb; this is different on the HC-110 (where it is + made by a 3rd party company for the 128-key input) and the HC-120 + (where it was made by votrax/phonic mirror, pcb 1817?) + 3. The voice synthesizer pcb 1818c, encased in epoxy. It is a discrete + synthesizer roughly equivalent to an SC-01 or VSK, it has external + pins to allow control of speech pitch and rate in addition to the + typical 2 inflection pins. + + Notes: Electronic Arrays, Inc. who made the EA8316 CMOS mask ROMs was + bought out by NEC in 1978. + + TODO: 1818c discrete speech synth device + + The 1818C SYNTHESIZER BOARD is mentioned as one of two speech + synthesizers described in US Patent 4,130,730 in figures 3, 4a and 4b + (the Votrax VSK/VSL is the other device, described in figures 1, 2a, + and 2b) + The 1818C uses three Motorola MCM14524 256x4 CMOS MASK ROMs to hold + the phoneme parameters. + (This is mentioned in 4,130,730 column 11 line 31.) + + Motorola MCM14524: + +---..---+ + /CLK -> | 1 16 | -- VDD (up to 18v) + CE -> | 2 15 | <- A0 + B0 <- | 3 14 | <- A1 + B1 <- | 4 13 | <- A7 + B2 <- | 5 12 | <- A6 + B3 <- | 6 11 | <- A5 + A2 -> | 7 10 | <- A4 + (0v)VSS -- | 8 9 | <- A3 + +--------+ + see http://bitsavers.org/components/motorola/_dataBooks/1978_Motorola_CMOS_Data_Book.pdf + page 488 + + TODO: make the two latcha/b flops combine together using input_merger */ /* Core includes */ |