Part I. CLOSE BOOK: Answer directly on the exam sheet. A. True or false. If your answer is false, please explain your reasons. (24%) 1. AD-type Flip-Flop can be used as a latch that buffers the input signal. 2. All microcontrollers integrate CPU and IO ports on a chip. 3. 8051 has only 8K memory space. 4. ()8051 must connect to a crystal of 11.0592 MHz. Crystals of other frequency are not allowed. 5. Upon power-up, the 8051 fetches the first opcode from ROM address location 00FOH. 6. ()The 2's complement of FFH is 00H 7. Ifa CPU has 24 address lines, and each address is for a byte; then 2G bytes can be directly addressed by the CPU. 8. A third-party vendor of a chip is a supplier that outside the (original) chip manufacturer, and the second manufacturer of the chip. That is, it is the third company (vendor) that can supply the chip 9. If a conditional jump is not taken, the next instruction to be executed is the instruction that directly follows the jump instruction. 10. In the 8051, four ports are reserved for LO ports. 11 A tri-state buffer enters the low-impedance mode when it is not enabled. 12. In a given byte-addressable computer, memory locations 1000H to 9FFFH are available for user programs. The total number of bytes for user programs is 8FFFH (in decimal). Part I. CLOSE BOOK: Answer directly on the exam sheet. A. True or false. If your answer is false, please explain your reasons. (24%) 1. AD-type Flip-Flop can be used as a latch that buffers the input signal. 2. All microcontrollers integrate CPU and IO ports on a chip. 3. 8051 has only 8K memory space. 4. ()8051 must connect to a crystal of 11.0592 MHz. Crystals of other frequency are not allowed. 5. Upon power-up, the 8051 fetches the first opcode from ROM address location 00FOH. 6. ()The 2's complement of FFH is 00H 7. Ifa CPU has 24 address lines, and each address is for a byte; then 2G bytes can be directly addressed by the CPU. 8. A third-party vendor of a chip is a supplier that outside the (original) chip manufacturer, and the second manufacturer of the chip. That is, it is the third company (vendor) that can supply the chip 9. If a conditional jump is not taken, the next instruction to be executed is the instruction that directly follows the jump instruction. 10. In the 8051, four ports are reserved for LO ports. 11 A tri-state buffer enters the low-impedance mode when it is not enabled. 12. In a given byte-addressable computer, memory locations 1000H to 9FFFH are available for user programs. The total number of bytes for user programs is 8FFFH (in decimal)