第二章单元测试
- In internal RAM, only one of the four register banks is in used at any time when the program is running. （ ）
- When using an external crystal for the 8051 clock, what values of capacitors should be connected to it? （ ）
- On the 8051 what is the storage size (in bits) of accumulator A? ( )
Which port has alternate function pins? ( )
Which type of memory organization is used by the MCS-51 microcontrollers?
A:对 B:错
答案:对
A:30 pF
B:30 nF
C:300 F
D:3 pF
答案:30 pF
A:16 bit B:32 bit C:8 bit D:12 bit
答案:8 bit
A:Port 3
B:Port 2 C:Port 0 D:Port 1
答案:Port 3
A:
London
B:Von Neumann C:Shandong D:Harvard答案:Harvard
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