MB9A140NB Datasheet, PDF(7/121 Page) SPANSION – The MB9A140NB Series are highly integrated

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MB9A140NB Datasheet, PDF (7/121 Pages) SPANSION – The MB9A140NB Series are highly integrated

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DataSheet

ï¬ HDMI-CEC/Remote Control Receiver (Up to 2 channels)

ï HDMI-CEC transmitter

ï Header block automatic transmission by judging Signal free

ï Generating status interrupt by detecting Arbitration lost

ï Generating START, EOM, ACK automatically to output CEC transmission by setting 1 byte data

ï Generating transmission status interrupt when transmitting 1 block (1 byte data and EOM/ACK)

ï HDMI-CEC receiver

ï Automatic ACK reply function available

ï Line error detection function available

ï Remote control receiver

ï 4 bytes reception buffer

ï Repeat code detection function available

ï¬ Real-time clock (RTC)

The Real-time clock can count Year/Month/Day/Hour/Minute/Second/A day of the week from 01 to 99.

ï The interrupt function with specifying date and time (Year/Month/Day/Hour/Minute/Second/A day of

the week.) is available. This function is also available by specifying only Year, Month, Day, Hour or

Minute.

ï Timer interrupt function after set time or each set time.

ï Capable of rewriting the time with continuing the time count.

ï Leap year automatic count is available.

ï¬ Watch Counter

The Watch counter is used for wake up from sleep and timer mode.

Interval timer: up to 64 s (Max) @ Sub Clock : 32.768 kHz

ï¬ External Interrupt Controller Unit

ï Up to 16 external interrupt input pins

ï Include one non-maskable interrupt (NMI) input pin

ï¬ Watchdog Timer (2 channels)

A watchdog timer can generate interrupts or a reset when a time-out value is reached.

This series consists of two different watchdogs, a Hardware watchdog and a Software watchdog.

The Hardware watchdog timer is clocked by the built-in low-speed CR oscillator. Therefore, the Hardware

watchdog is active in any low-power consumption modes except RTC, Stop, Deep Standby RTC and Deep

Standby Stop modes.

ï¬ CRC (Cyclic Redundancy Check) Accelerator

The CRC accelerator calculates the CRC which has a heavy software processing load, and achieves a

reduction of the integrity check processing load for reception data and storage.

CCITT CRC16 and IEEE-802.3 CRC32 are supported.

ï CCITT CRC16 Generator Polynomial: 0x1021

ï IEEE-802.3 CRC32 Generator Polynomial: 0x04C11DB7

MB9A140NB_DS706-00040-4v0-E, June 10, 2015

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