View source for Samsung S3C2442B

From Openmoko

Jump to: navigation, search

You do not have permission to edit this page, for the following reasons:

  • The action you have requested is limited to users in the group: Administrators.
  • You must confirm your email address before editing pages. Please set and validate your email address through your user preferences.

You can view and copy the source of this page:

Template used on this page:

Return to Samsung S3C2442B.

Personal tools

The Samsung S3C2442B is the CPU of the Neo1973 GTA02. It is based on an ARM920T core.

The datasheet for this is at this link.

One difference is that the CPU voltage limits are specified variably from 400Mhz (1.5V) to 50Mhz (1V) the current at these speeds is not mentioned.

Harald Welte wrote in an e-mail to the neo1973-hardware mailing list:

apart from two differences, [the S3C2442B] is software/register-wise exactly
identical to the s3c2440.  Hardware-wise it is packaged with 64MByte
(x32) SDRAM and depending on the type, 128/256MByte NAND flash (2k page

The differences are:

1) all pull-up resistors (GPBUP, ...) are now pull-down
2) the default initializers for the PLL have changed

The data sheet for the S3C2440A seems to be available at [1]. Samsung's page with more superficial information on the S3C2440 is at [2].