Solutions to Fill in the Blanks Questions

Chapter 3

Q. Answers

1

codes and constants

2

register banks

3

INT0 and INT1

4

Carry and 0x0D2

5

Parity = 1 and F0= 1

6

P3.1 and P3.0

7

external memory chips mot used

8

latching the address; middle of S1 and middle of S2

9

Timer 1/Counter; WR and RD

10

two 8 bit timers TL0 and TH0 are used. T1, if set to run in mode 2 then, used for serial bit transmission or reception in case serial mode 1 or 3 used

11

using T1 and T0 as counters in mode 0

12

TF1,TR1,TF0 and TR0 = 0s, IT1, IE1, IT0 and IE0 = 0s for the timers and external interrupts

13

synchronous communication; 1

14

mode 1 serial transmission, receiver disable, TI and RI flags reset

15

2s/(256– TH1) where s means PCON.7 ...

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