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-rw-r--r--src/mame/drivers/votrhv.cpp80
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 */