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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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93LC66 Datasheet(PDF) 15 Page - Microchip Technology |
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93LC66 Datasheet(HTML) 15 Page - Microchip Technology |
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15 / 22 page  © 1994 Microchip Technology Inc. DS00560D-page 15 Using the 93LC56 and 93LC66 8 0253 0056 0A52 goto polltop ; no, check again 0254 0057 0525 bsf port_a,timeout; yes, set timeout LED and go on 0255 0058 0A5A goto badpoll ; 16c5x/7x Cross-Assembler V4.12 Released Mon Jun 06 10:49:00 1994 Page 6 Line PC Opcode 0256 0257 0059 0425 okpoll bcf port_a,timeout; clear the timeout LED 0258 005A 0486 badpoll bcf port_b,chpsel ; chip sel line back low 0259 005B 02AC incf addr ; increment address counter 0260 005C 02F3 decfsz bytcnt ; all bytes written? 0261 005D 0A3C goto topwr ; no, do another 0262 ; yes, go on 0263 ; 0264 ; Now continue on to the erase/write disable command 0265 ; 0266 ;**************************************************************** 0267 ; EWDS (Erase/Write Disable Routine) 0268 ; This routine executes the erase/write disable command 0269 ; which prevents the contents of the array from being 0270 ; written to. 0271 ; 0272 ;**************************************************************** 0273 EWDS 0274 ; 0275 005E 0907 call BSTART ; generate a start bit 0276 ; 0277 005F 0C02 movlw .2 ; set # bits to 2 0278 0060 0032 movwf bits ; 0279 0061 0C00 movlw b’00000000' ; get the opcode (00b) 0280 0062 0030 movwf txbuf ; into the output buffer 0281 0063 091C call TX ; and transmit it 0282 0064 0C08 movlw .8 ; set # bits to 8 0283 0065 0032 movwf bits ; 0284 0066 0C00 movlw b’00000000' ; get opcode and address 0285 ; (00XXXXXX) 0286 0067 0030 movwf txbuf ; into output buffer 0287 0068 091C call TX ; and transmit it 0288 0069 0486 bcf port_b,chpsel ; set chip select line low 0289 006A 0000 nop 0290 006B 0A2B goto EWEN ; start all over 0291 ; 0292 ; 0293 0294 0000 END 8-113 |
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