:
1 68000?
2 BIC 68000 ?
3 . 2 ?
4 ?
5 68000?
() (²), , MC 68000 , :
, ;
, , , , , ;
, ² MC 68000. ³ -, ().
² 68000 . 11.6. ² . . 11.4.
(RST) , . 11.7. 88916 Motorola. Z 1. ϳ ; 璺 , . .
11.6
² 68000
11.7
² MC 68000 , . - 74 F 245, 8- . ʳ ² MC 68000 16, 74 F 245, , . , . UDS, LDS, . PDEN0, PDEN1. . 11.8.
. , , . FPGA, , . FPGA . 11.9. FPGA.
|
|
, BYTE0 (1,3) UDS, LDS, . 11.5. , . BYTE0 , , BYTE 1 , .
11.8
11.5
LDS | UDS | |
BACK 1 (2, 3, 4, 5) , , , . . , BACK 1 , BACK 2 , BACK 3 -, BACK 4 , BACK 5 .
FPGA, , , . 11.9.
11.9 ² FPGA
:
1 68000 ?
2 ?
3 88916?
:
1 BACK 5 BACK 1?
2 FPGA A 17 A 13?
3 BERR, FPGA?
4 UDS, LDS?
5 FC 2... FC 0 ?