Serial port programming

Lecture 38: Serial port programming

90 Questions65 MCQs22 Short Questions3 Long Questions

Showing 11 – 20 of 90 Questions

Page 2 of 9

Q11❓ MCQ📑 Lec 14Easy🔁Repeated⭐High-Yield💡Conceptual

How many prevalent calling conventions primarily exist in high-level language integration with assembly (e.g., C cdecl vs Pascal)?

💻 assembly Snippet

; C Calling Convention (cdecl): Caller cleans stack
; Pascal Calling Convention: Callee cleans stack

Q12❓ MCQ📑 Lec 14Easy🔁Repeated⭐High-Yield💡Conceptual

How many prevalent calling conventions primarily exist in high-level language integration with assembly (e.g., C vs Pascal)?

Q13❓ MCQ📑 Lec 14Easy🔁Repeated⭐High-Yield💡Conceptual

How many traditional calling conventions (e.g., cdecl, stdcall, pascal, fastcall) are commonly referenced in high-level language integration?

Q14📝 Short Q📑 Lec 14Easy⭐High-Yield💡Conceptual

Differentiate between serial communication and parallel communication.

💻 assembly Snippet

; Serial Port Initialization
mov ah, 0
mov al, 0xE3
xor dx, dx
int 0x14

Q15📝 Short Q📑 Lec 14Medium⭐High-Yield💡Conceptual

Differentiate between synchronous data transmission and asynchronous data transmission in serial communication.

Q16🧠 Long Problem📑 Lec 14Medium🔁Repeated⭐High-Yield💡Conceptual🌟Starred

Specify the required register parameters for calling the BIOS INT 14h service 'Write Character to Serial Port'.

💻 assembly Snippet

mov ah, 0x01
mov al, 'A'
mov dx, 0
int 0x14

Q17📝 Short Q📑 Lec 14Easy🔁Repeated⭐High-Yield

What is the minimum number of pins required for bidirectional serial communication, and what are their names?

Q18❓ MCQ📑 Lec 14Easy🔁Repeated⭐High-Yield

On a standard 9-pin RS-232 (DB-9) serial interface connector, which pin number is assigned to the Data Set Ready (DSR) signal?

Q19❓ MCQ📑 Lec 14Easy🔁Repeated⭐High-Yield

On a standard 9-pin DB-9 serial communications connector, which pin number is allocated to the Data Set Ready (DSR) hardware status line?

Q20❓ MCQ📑 Lec 14Easy🔁Repeated⭐High-Yield

On a standard 9-pin DB-9 serial communications connector, which pin number is assigned to the Clear To Send (CTS) hardware status signal?