編程 mcq
Question 1: How many pins does the 8255 PPI IC contains?
問題1:8255 PPI IC包含多少個引腳?
24
24
20
20
32
32
40
40
Answer: d. 40
答案:d。 40
Question 2: In which mode do all the Ports of the 8255 PPI work as Input-Output units for data transfer?
問題2:8255 PPI的所有端口都在哪種模式下用作數據傳輸的輸入輸出單元?
BSR mode
BSR模式
Mode 0 of I/O mode
I / O模式的模式0
Mode 1 of I/O mode
I / O模式的模式1
Mode 2 of I/O mode
I / O模式的模式2
Answer: b. Mode 0 of I/O mode
答案:b。 I / O模式的模式0
?Question 3: Which of the following pins are responsible for handling the on the Read Write control logic unit of the 8255 PPI?
問題3:以下哪個引腳負責處理8255 PPI的讀寫控制邏輯單元?
CS'
CS'
RD'
RD'
WR'
WR'
ALL of the above
上述所有的
Answer: d. All of the above
答案:d。 上述所有的
Question 4: In which of the following modes is the 8255 PPI capable of transferring data while handshaking with the interfaced device?
問題4:8255 PPI在以下哪種模式下能夠與接口設備握手時傳輸數據?
BSR mode
BSR模式
Mode 0 of I/O mode
I / O模式的模式0
Mode 1 of I/O mode
I / O模式的模式1
Mode 2 of I/O mode
I / O模式的模式2
Answer: c. Mode 1 of I/O mode
答:c。 I / O模式的模式1
Question 5: How many bits of data can be transferred between the 8255 PPI and the interfaced device at a time? or What is the size of internal bus of the 8255 PPI?
問題5:一次可以在8255 PPI和接口設備之間傳輸多少位數據? 或8255 PPI的內部總線大小是多少?
16 bits
16位
12 bits
12位
8 bits
8位
None of the above
以上都不是
Answer: c. 8 bits
答:c。 8位
Question 6: Which port of the 8255 PPI is capable of performing the handshaking function with the interfaced devices?
問題6:8255 PPI的哪個端口能夠與接口設備執行握手功能?
Port A
港口A
Port B
港口B
Port C
C口
All of the above
上述所有的
Answer: c. Port C
答:c。 C口
Question 7: In which of the following modes of the 8255 PPI, only port C is taken into consideration?
問題7:在8255 PPI的以下哪種模式下,僅考慮端口C?
BSR mode
BSR模式
Mode 0 of I/O mode
I / O模式的模式0
Mode 1 of I/O mode
I / O模式的模式1
Mode 2 of I/O mode
I / O模式的模式2
Answer: a. BSR mode
答: BSR模式
Question 8: In mode 2 of I/O mode, which of the following ports are capable of transferring the data in both the directions?
問題8:在I / O模式的模式2中,以下哪個端口能夠雙向傳輸數據?
Port A
港口A
Port B
港口B
Port C
C口
All of the above
上述所有的
Answer: a. Port A
答: 港口A
Question 9: In which of the following modes we do not consider the D6, D5 and D4 bits of the control word?
問題9:在以下哪種模式下,我們不考慮控制字的D6,D5和D4位?
BSR mode
BSR模式
Mode 0 of I/O mode
I / O模式的模式0
Mode 1 of I/O mode
I / O模式的模式1
Mode 2 of I/O mode
I / O模式的模式2
Answer: a. BSR mode
答: BSR模式
Question 10: How many data lines in total are there in the 8255 PPI IC?
問題10:8255 PPI IC中總共有多少條數據線?
8 data lines
8條數據線
32 data lines
32條數據線
24 data lines
24條數據線
None of the above
以上都不是
Answer: c. 24 data lines
答:c。 24條數據線
翻譯自: https://www.includehelp.com/embedded-system/mcq-8255-ppi-programmable-peripheral-interface.aspx
編程 mcq