HIGH-SPEED DALLAS SEMICONDUCTOR

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(). . , , , ( ). 51- .

"High Speed" Dallas Semiconductor MCS51. . , . (OTP EPROM) , (UV EPROM). , - DS87C520 DS87C530.

"High Speed" . , , . , DS80C320 DS80C323 , DS83C520 16 , DS87C520 DS87C530 - . , - - DS87C530.

HIGH-SPEED   DALLAS SEMICONDUCTOR
( )



"High Speed" , 12 , 8751, . DS8xC5xx , 51. , 33 DS87C520 DS87C530 121 , 8751 100 . - 2,5 . , "High Speed" , 8751.



, , . . , . , SFR- ROMSIZE - 0, 1, 2, 4, 8 16 . .

DS87C520/530 256 , 8752, 1 . MOVX. , , . 0000 03FF. 03FF , . - , MCS-51.

DS87C520/530 . MOVX , , . "" . .



DPTR, DPTR0, 82H 83H, "High Speed" 8751. , 84H 85H, DPTR1. DPTR / SFR- 86H. "" "", .



Idle Power Down, , Power Management Mode (PMM). - , . 16 256 ( 1 2 ). 11059,2 "High Speed" 15,5, 1 - 4,8, 2 - 4 , ( , 8751/52 Idle, ). , DS87C520/530 , 2...4 . , , .

. "High Speed" , .

, ALE , .



DS87C520 DS87C530 , 8751, 1.2 (RXD1) 1.3 (TXD1), SCON1 (C0H) SBUF1 (C1H). , . /.

, 12. , 3, SFR CKCON.

, . , , . . , 17, 20, 23 26- . ( ) 512 .

,

, 4,13 , , , . . 4,38 ( ).

DS87C520 DS87C530 : , 8751, . , - INT2 INT4 , INT3 INT5 - . 8752. , .

(Real Time Clock, RTC), DS87C530, , , , , . 32,768 . RTC (ALARM) , , , .

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