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Zakładka z wyszukiwarką danych komponentów |
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MC13233C Arkusz danych(PDF) 10 Page - Freescale Semiconductor, Inc |
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MC13233C Arkusz danych(HTML) 10 Page - Freescale Semiconductor, Inc |
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10 / 36 page  MC1323x Advance Information, Rev. 1.2 10 Freescale Semiconductor — Direct — Operand in memory at 0x0000–0x00FF — Extended — Operand anywhere in 64-KB address space — Indexed relative to H:X — Five submodes including auto increment — Indexed relative to SP — Improves C efficiency dramatically • Memory-to-memory data move instructions with four address mode combinations • Overflow, half-carry, negative, zero, and carry condition codes support conditional branching on the results of signed, unsigned, and binary-coded decimal (BCD) operations • Efficient bit manipulation instructions • Fast 8-bit by 8-bit multiply and 16-bit by 8-bit divide instructions • STOP and WAIT instructions to invoke low-power operating modes 5 System Clocks The primary system reference frequency is a 32 MHz crystal oscillator. The crystal requirements for the oscillator and oscillator performance must support a +/-40 ppm frequency accuracy to meet the IEEE 802.15.4 Standard requirements. All system clocks are generated from this source. Features of the clock system include: • The 32 MHz reference oscillator has onboard programmable capacitive loading that allows software tuning of frequency accuracy • CPU clock as high as 32 MHz • Bus clock (and peripheral clock) equals 1/2 CPU clock • Clocks to individual peripherals can be independently disabled for best power management. • CPU clock can be lowered to 500 kHz for lower power (250 kHz bus clock) An optional 32.768 kHz crystal oscillator is available for accurate low power timing and the Real Time Clock (RTC). Also, an onboard, low accuracy 1 kHz oscillator is available for sleep timing wake-up. 6Memory The MC1323x memory resources consist of RAM, FLASH program memory for nonvolatile data storage, and control/status registers for I/O, peripherals, management, and the transceiver. Features include: • 80 KB FLASH (81920dec) bytes organized as 80 segments of 1024 byte/segment) • 5 KB RAM • Security circuitry to prevent unauthorized access to RAM and FLASH contents |
Podobny numer części - MC13233C |
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Podobny opis - MC13233C |
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