Inhaltsverzeichnis
Werbung
8. SERIAL INTERFACE
8.1 Specifications
(1) Synchronizing system
(2) Baud rate
(3) Configuration of one word
Start bits
Data bits
Parity bits
Stop bits
(4) Signal polarity
RS-232C
• Mark
• Space
(5) Received data (RXD signal)
RS-232C
• Mark
• Space
(6) Reception control (DTR signal)
• Mark
• Space
(7) Transmitted data (TXD signal)
• Mark
• Space
(8) Transmission control (DSR signal)
• Mark
• Space
(9) Transmission control (TXD signal: X-ON/X-OFF control)
• DC1 code(11H) X-ON
• DC3 code(13H) X-OFF
:
Asynchronous
:
1,200, 2,400, 4,800, 9,600, or 19,200 bps (User selectable)
:
1 bit
:
8 bits
:
Odd, even, or no parity (User selectable)
:
1 bit or more
= Logic "1"(−3 ∼ −12 V)
= Logic "0"(+3 ∼ +12 V)
= 1
= 0
:
Data transfer disabled (BUSY)
:
Data transfer enabled
= 1
= 0
:
TXD data transmission disabled
:
TXD data transmission enabled
:
Data reception enabled
:
Data reception disabled
34
CBM-292/293 User's Manual
CITIZEN
Werbung
Inhaltsverzeichnis
