Texas Instruments Extensa 660 Series Maintenance Manual page 25

Characteristic
RS-232-D Serial Port:
Method:
Type:
Bits per second:
Parity: Transmit:
Receive:
Line control:
Data word:
16550 UART Support
Selectable Serial Port
(BIOS Setup)
Parallel Port
Connector Type
Fast I/R Port
Transfer Data Rate
Expansion Bus Port
Table 1-6 Extensa 660 Specifications
Model
9-Pin, male, sub-D-type connector
EIA RS-232-D
Asynchronous transmission
110, 200, 300, 600, 1200, 2400,
4800, 9600, 19200
Odd, even, mark, space
Data check: odd, even
READY/BUSY, DC1/DC3
7- or 8-bit
Yes
COM1 (IRQ4, 3F8h)
COM2 (IRQ3, 2F8h)
COM3 (IRQ4, 3E8h)
COM4 (IRQ4, 2E8h)
Disable
EPP/ECP Bidirectional
25-Pin, DB-25 Connector
Yes
4 Mb/s
Yes
660CD
9-Pin, male, sub-D-type connector
EIA RS-232-D
Asynchronous transmission
110, 200, 300, 600, 1200, 2400,
4800, 9600, 19200
Odd, even, mark, space
Data check: odd, even
READY/BUSY, DC1/DC3
7- or 8-bit
Yes
COM1 (IRQ4, 3F8h)
COM2 (IRQ3, 2F8h)
COM3 (IRQ4, 3E8h)
COM4 (IRQ4, 2E8h)
Disable
EPP/ECP Bidirectional
25-Pin, DB-25 Connector
Yes
4 Mb/s
Yes
Model 660CDT
General Description 1-17