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CS5535-UDC Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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CS5535-UDC Datasheet(HTML) 3 Page - National Semiconductor (TI) |
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3 / 555 page  Revision 0.8 3 www.national.com Features (Continued) Audio Codec 97 (AC97) Controller ■ AC97 specification v2.1 compliant interface to multiple audio codecs: Serial In, Serial Out, Sync Out, Bit Clock In ■ Legacy “PC Beep” support ■ Eight-channel buffered GeodeLink mastering interface ■ ASMI and IRQ support ■ Multiple codec support ■ Surround sound support Diverse Device ■ 82xx Legacy Devices: — Two 8259A-equivalent PICs: – Shadow registers allow reading of internal registers — One 8254-equivalent PIT — Two 8237A-equivalent DMA controllers: – 8-bit DMA supported (only) — Serial Ports 1 and 2: – Port 1 is shared with an IR port – 16550A and 16450 software compatible – Shadow register support for write-only bit monitoring – UART data rates up to 115.2 kbps ■ IR (Infrared) Communication Port: — Shared with Serial Port 1 — 16550A and 16450 software compatible — Shadow register support for write-only bit monitoring — Consumer-IR (TV-Remote) mode — Data rate up to 115.2 kbps (SIR) — HP-SIR (same as SIR above) — Selectable internal or external modulation/demodula- tion (Sharp-IR) — ASK-IR option of SHARP-IR — DASK-IR option of SHARP-IR — Consumer Remote Control supports RC-5, RC-6, NEC, RCA, and RECS 80 ■ System Management Bus (SMB) Controller: — Compatible with Intel System Management Bus, Phillips I2C, and ACCESS.bus — Bus master and slave operation ■ LPC (Low Pin Count) Port: — Based on Intel LPC Interface specification v1.0 — Serial IRQ support — Serial DMA support (8-bit only) — Boot source typically off external LPC — Supports firmware hub protocol — External bus masters not supported ■ General Purpose I/Os (GPIOs): — Programmable: In, Out, I/O, Open-Drain, Pull- Up/Down, and Invert — Parallel bit read and write — Individual bit access eliminates Read-Modify-Write cycles — Input Conditioning Functions (ICF): – Input debounce/filter — Input event counter — Input edge detect ■ Multi-Function General Purpose Timers (MFGPTs): — Eight MFGPTs - two are multiplexed with GPIOs for external usage — Two MFGPTs are powered by Standby power and can be used as wakeups — Watchdog timer generates reset, IRQ, ASMI, or NMI — Pulse Width Modulation (PWM) — Pulse Density Modulation (PDM) — Blink ■ Real-Time Clock (RTC) with CMOS RAM: — Battery backed-up century calendar in days, day of the week, date of month, months, years and century, with automatic leap-year adjustment — Battery backed-up time of day in seconds, minutes, and hours that allows a 12 or 24 hour format and adjustments for daylight savings time — BCD or binary format for time keeping — DS1287, MC146818, and PC87911 compatibility — Selective lock mechanisms for the RTC RAM — Real-time alarm —VBAT or VSTANDBY power sources with automatic switching between them — 242 bytes of battery-backed CMOS RAM in two banks ■ Power Management Controller: — ACPI (Advanced Configuration Power Interface) specification v2.0 compliant timer and register set — Supports APM (Advanced Power Management) and Legacy PM — PME (power management event) from GPIOs and/or on-chip sources — Working, Sleep, and Standby states — Wakeup circuits powered by Standby power rails while rest of component and system powered off — Automatic clock-off gating reduces power to inactive blocks — Flexible power supply controls including On/Off and Sleep button inputs — Generic Sleep output controls — ACPI-compliant four second fail-safe off — Low-voltage detect function for battery-powered applications — Suspend/Acknowledge handshake with GX2 — System over-temperature support — Low Voltage Detect (LVD) provides Power On Reset (POR) as well as continuous voltage monitoring for automatic system reset on a low voltage condition |
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Similar Description - CS5535-UDC |
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