TI-99 RS232/PIO interface - mame (0286) machine

MAME: 0286 - Released: 2026-02-25T16:02:51 - Machines: 49738 - rom: 368235 - disk: 1396

machine

• XML • JSON • RUN

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
ti99_rs232	devices/bus/ti99/peb/ti_rs232.cpp		no	yes	no	no	TI-99 RS232/PIO interface

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
rs232pio_dsr.u1	4096	eab382fb	ee609a18a21f1a3ddab334e8798d5f2a0fcefa91	dsrrom	0	good	no

device_ref

tag	name
:_tmp:uart0	tms9902
:_tmp:uart1	tms9902
:_tmp:serdev0	ti99_rs232_atttached
:_tmp:serdev1	ti99_rs232_atttached
:_tmp:piodev	ti99_pio_attached
:_tmp:crulatch	ls259

device, instance

type	tag	interface	fixed_image	mandatory	name	briefname
serial	:serdev0				serial1	serl1
serial	:serdev1				serial2	serl2
parallel	:piodev				parallel	parl

device, extension

type	tag	interface	fixed_image	mandatory	extension_names
serial	:serdev0
serial	:serdev1
parallel	:piodev

configuration

Serial cable pin mapping

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Serial cable pin mapping	:SERIALMAP	3

setting

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
6-20	0	yes
8-20	1	no
5-20	2	no

dipswitch

TI-RS232 CRU base

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
TI-RS232 CRU base	:CRURS232	1

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
1300	0	yes
1500	1	no