Samsung S3C2442B

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

Documentation

The data sheet for this processor does not currently seem to be available online, but 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
size).

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].

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

Documentation

The data sheet for this processor does not currently seem to be available online, but 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
size).

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].