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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TMP93CS44 датащи(PDF) 22 Page - Toshiba Semiconductor |
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TMP93CS44 датащи(HTML) 22 Page - Toshiba Semiconductor |
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22 / 224 page  TMP93CS44/S45 2004-02-10 93CS44-20 Clock setting example 2: Changing from the low frequency (fs) to the high frequency (fc). SYSCR0 EQU 006EH SYSCR1 EQU 006FH WDCR EQU 005DH WDMOD EQU 005CH RES 7, (WDMOD) ; LD (WDCR), B1H ; Disables watchdog timer. SET 4, (WDMOD) ; Sets warm-up time to 214/fc. SET 7, (SYSCR0) ; Enables high-frequency (fc). SET 2, (SYSCR0) ; Clears and starts warm-up timer. WUP: BIT 2, (SYSCR0) ; JR NZ, WUP ; Detects end of warm-up timer. SET 3, (SYSCR1) ; Changes fSYS from fs to fc. RES 6, (SYSCR0) ; Disables low-frequency oscillation. SET 7, (WDMOD) ; Enable watchdog timer. Counts up by fSYS <XEN> Counts up by fc Warm-up timer X1, X2 pins <XTEN> XT1, XT2 pins fs Disables low frequency Change fSYS from fs to fc End of warm-up timer Clears and starts warm-up timer Enables high frequency End of warm-up timer <SYSCK> System clock fSYS fc |
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