[Solved] Consider a chip design where AHB and APB buses are used. Which statement is true about their usage? — Ans: AHB is used for high-speed internal communication, APB for slower peripherals | ARM Architecture

ARM Architecture - Bus Architecture

Consider a chip design where AHB and APB buses are used. Which statement is true about their usage?

ABoth AHB and APB have the same speed and function

BAPB handles high-speed data transfer, AHB handles peripherals

CAHB is used for high-speed internal communication, APB for slower peripherals

DAHB is only for external devices, APB is for internal memory

Step-by-Step Solution

Solution:

Step 1: Recall bus roles
AHB is designed for high-speed internal communication, APB for slower peripherals.
Step 2: Check each option
APB handles high-speed data transfer, AHB handles peripherals reverses roles, C wrongly states equal speed, D misassigns bus functions.
Final Answer:
AHB is used for high-speed internal communication, APB for slower peripherals -> Option C
Quick Check:
AHB = fast, APB = slow peripherals [OK]

Quick Trick: AHB fast inside, APB slow peripherals [OK]

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Consider a chip design where AHB and APB buses are used. Which statement is true about their usage?