Texas Instruments 4000M - Manual (Page 266)

15-Pin Micro MIDI/Joy
Connector
Pin Number Signal Name
1, 8, 9, 15 VCC
2 DC4
3 TMRD
4, 5, 12 GND
6 TMRC
7 D5
10 D6
11 TMRB
13 TMRA
14 D7
9-Pin Serial Port
Connector
Pin Signal Name Abbreviation
1 Carrier Detect DCD
2 Receive Data RXD
3 Transmit Data TXD
4 Data Terminal Ready DTR
5 Ground GND
6 Data Set Ready DSR
7 Request to Send RTS
8 Clear to Send CTS
9 Ring Indicator RI
Connector Pin Assignments
Connector Pin Assignments G-3