:
, ;
, , ;
(SCON), , ;
, ;
, , , ;
(IE), .
-51 :
0. RxD. TxD . -8 . f/12, f ;
1. TxD, RxD. 10 . / /1;
2. TxD, RxD. 11 . / f/32 f/64;
3. 2 /, /1.
5 ( , , , .. ):
INT0 (0003H);
- 0 (000BH);
INT1 (00013H);
- 1 (0001BH);
(00023H).
IE ( A8H) IP ( B8H). . 3. . IE - , IP . 5 ( ), ( ). IP . , , IP . .
3.
IE = A8H
| EA | ------- | ------- | ES | ET1 | EX1 | ET0 | EX0 |
| EX0 | / 0. INT0. | - | |
| ET0 | / /. / 0. | - | |
| EX1 | / 1. INT1. | - | |
| ET1 | / /. / 1. | - | |
| ES | / . TI, RI. | - | |
| EA | / . , , . | - |
IP = B8H
|
|
|
| ------ | ------- | ------- | PS | PT1 | PX1 | PT0 | PX0 |
| PX0 | 0. / (/) INT0 | - | |
| PT0 | / 0. / (/) / 0. | - | |
| PX1 | 1. / (/) INT1 | - | |
| PT1 | / 1. /- (/) / 1. | - | |
| PS | . /- (/) | - |
(PSW)
(PSW) . 4 5.
4
5
