MB9B310R datasheet(9/129 Pages) SPANSION

9 / 129 page

D a t a S h e e t

MB9B310R-DS706-00027-3v0-E, March 11, 2015

CONFIDENTIAL

 External Interrupt Controller Unit

 Up to 16 external interrupt input pin

 Include one non-maskable interrupt (NMI)

 Watchdog Timer (Two 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.

"Hardware" watchdog timer is clocked by low-speed internal CR oscillator. Therefore, "Hardware"

watchdog is active in any power consumption mode except Stop mode.

 CRC (Cyclic Redundancy Check) Accelerator

The CRC accelerator helps a verify data transmission or storage integrity.

CCITT CRC16 and IEEE-802.3 CRC32 are supported.

 CCITT CRC16 Generator Polynomial: 0x1021

 IEEE-802.3 CRC32 Generator Polynomial: 0x04C11DB7

 Clock and Reset

[Clocks]

Five clock sources (2 external oscillators, 2 internal CR oscillator, and Main PLL) that are dynamically

selectable.

 Main Clock:

4 MHz to 48 MHz

 Sub Clock:

32.768 kHz

 High-speed internal CR Clock:

4 MHz

 Low-speed internal CR Clock:

100 kHz

 Main PLL Clock

[Resets]

 Reset requests from INITX pin

 Power on reset

 Software reset

 Watchdog timers reset

 Low-voltage detector reset

 Clock supervisor reset

 Clock Super Visor (CSV)

Clocks generated by internal CR oscillators are used to supervise abnormality of the external clocks.

 External OSC clock failure (clock stop) is detected, reset is asserted.

 External OSC frequency anomaly is detected, interrupt or reset is asserted.

MB9B310R 데이터시트(PDF) 9 Page - SPANSION