NB2DSK01 - Common-Bus Flash Memory

Frozen Content

Modified by Admin on Sep 13, 2017

The NB2DSK01 includes Flash memory as part of the common-bus block of memory resources available to the NanoTalk Controller, or more specifically the firmware running within.

Figure 1. Common-bus Flash memory used by the
NB2DSK01s firmware.

The Flash memory is provided in the form of an S29GL256N11FFIV10 device (from Spansion). This Page Mode 256Mbit device is manufactured using 110nm MirrorBit™ technology and is organized as 16M x 16 bits (32MByte). It is powered by the NB2DSK01's 3.3V supply and offers a 110ns access time.

Location on Board

The common-bus Flash memory device (designated U24) is located on the component side of the board, to the right of the common-bus SDRAM and within the real estate that falls beneath the TFT LCD panel.

Schematic Reference

The common-bus Flash memory device can be found on Sheet 38 (FLASH_S29GL256N11FFIV10_16Mx16.SchDoc, entitled 16M x 16 Flash Memory (BGA)) of the motherboard schematics.

The common-bus memory block and interface wiring can be found on Sheet 36 (NB2_CommonMemory.SchDoc, entitled Common-Bus Memory Block).

Further Device Information

For more information on the S29GL256N11FFIV10 device, refer to the datasheet (s29gl-n_00_b3_e.pdf) available at www.spansion.com.