Do 8. Mai 11:10:43 CEST 2025 - tcpip20250506 txt

 
(C) David Vajda
TCP/IP auswendig
2025-05-06

ASCII Code

NUL         Nullzeichen
STX         Start of Text
SOH         Start of Heading
ETX         End of Text
EOT         End of Transmission
ETB         End of Transmission Block
FF          Form Feed
LF          Line Feed
VT          Vertical Tab
HT          Horizontal Tab
CR          Carriage Return
DEL         Delete
ESC         Escape
CAN         Cancel
DC1         Device Controll 1
DC2         Device Controll 2
DC3         Device Controll 3
DC4         Device Controll 4
SO          Shift Out
SI          Shift In
BS          Backspace
...

RS-232

CCITT-5

MAX-232, bei Atmega8

Data-Signals
    GND     Ground
    TxD     Transmit Data
    RxD     Recieve Data
    CTS     Clear 2 Send
    RTS     Ready 2 Send
    DSR     Data Set Ready
    DTR     Data Terminal Ready

Sub-D-9 Stecker
    Mnnchen Stecker
    Weibchen Buchse

Gnd: 5/1 ??
TxD: 2
RxD: 3

sub-d-9

norden: 5
sden: 4
westen
osten: von westen nach osten 5:1

Terminal: Datenendgert
Modem: Datenbertragungsgert

SP - Stackpointer
SPH - Stackpointer High
SPL - Stackpointer Low

256 Byte

Attiny ...

UBRR

Ports, atmega8:
    UBRR - USART Baud Rate Register, bei 256 Byte Stack