From bfbd9ff1326ef986f42233ee4c939012099d648b Mon Sep 17 00:00:00 2001 From: ClawGrip Date: Wed, 7 Aug 2019 15:45:22 +0200 Subject: ml20.cpp: Add small note (mw) --- src/mame/drivers/ml20.cpp | 71 ++++++++++++++++++++++++----------------------- 1 file changed, 37 insertions(+), 34 deletions(-) diff --git a/src/mame/drivers/ml20.cpp b/src/mame/drivers/ml20.cpp index 17c29d14c2d..a2a4bfc663a 100644 --- a/src/mame/drivers/ml20.cpp +++ b/src/mame/drivers/ml20.cpp @@ -6,40 +6,43 @@ Access control device with dot-matrix display - ML20/232 - ____________________________________________________ - | ________ ________ ________ ______ __ | - | |74HC04N|M74HC139B1 |__DP1__| |_XT1_| : CN7 | - |__ _______________ ____________ JP2 | - ||C||IC4 M27C512 || |D70320L-8 | (CN4)__ | - ||N||_____________|| |NEC V25 | ______ |C| | - ||2|_______________ | | |BATT | |N| | - ||_||KM681000CLP-7L| | | |_____| |6| | - |__ |______________| |___________| o <- LED | - ||C| ________ ________ .. <- JP1 | - ||N||_M6242B_| MAX693CPE __ | - ||8| ________ |C|__ | - | ULN2003A |N|| || - | :<-JP4 ________ ____ |3||_|<- LM2575T - | ________ SN74HC05N TLP504A |_| | - |__ MAX232CPE | - || | MEISEI ________ | - || | ________ P12 P12 MAX232CPE | - ||_| 26LS32ACN __ | - | :: <-JP5 |F|| - | ____________ ________ ________ |U|| - | |___CN10____| |_CN11__| |_______| ________ |S|| - | |___________| |_____ | |_CN9___| |_CN1___| E | - |___________________________________________________| - - XT1 = 16.000 MHz - DP1 = 8 dipswitches - CN4 = Speaker - CN9 = RS232 - CN8 = Power Out - CN6 = Magnetic stripe reader - CN2 = Display (dot-matrix, 2 lines x 16 characters, 5x7 each character) - CN7 = Keypad + ML20/232 + ____________________________________________________ + | ________ ________ ________ ______ __ | + | |74HC04N|M74HC139B1 |__DP1__| |_XT1_| : CN7 | + |__ _______________ ____________ JP2 | + ||C||IC4 M27C512 || |D70320L-8 | (CN4)__ | + ||N||_____________|| |NEC V25 | ______ |C| | + ||2|_______________ | | |BATT | |N| | + ||_||KM681000CLP-7L| | | |_____| |6| | + |__ |______________| |___________| o <- LED | + ||C| ________ ________ .. <- JP1 | + ||N||_M6242B_| MAX693CPE __ | + ||8| ________ |C|__ | + | XT2 ULN2003A |N|| || + | :<-JP4 ________ ____ |3||_|<- LM2575T + | ________ SN74HC05N TLP504A |_| | + |__ MAX232CPE :<-JP8 | + || | MEISEI ________ | + || | ________ P12 P12 MAX232CPE | + ||_| 26LS32ACN __ | + | :: <-JP5 |F|| + | ____________ ________ ________ |U|| + | |___CN10____| |_CN11__| |_______| ________ |S|| + | |___________| |_____ | |_CN9___| |_CN1___| E | + |___________________________________________________| + + XT1 = 16.000 MHz + XT2 = S873 + DP1 = 8 dipswitches + CN4 = Speaker + CN9 = RS232 + CN8 = Power Out + CN6 = Magnetic stripe reader + CN2 = Display (dot-matrix, 2 lines x 16 characters, 5x7 each character) + CN7 = Keypad + + Display = Hyundai HC16203-A (Hitachi HD44780A00 based). Status: - Shows current date and time, then presumably waits for keypad input -- cgit v1.2.3