Editing Device numbers

== Overview ==
These are the device numbers of the "peripherals" connected to [[IOP/Deckard|IOP]].
=== DEV1 ===
The DVD player ROM (on SCPH-18000 and later). This is often physically a part of the same IC as the boot-ROM (DEV2).

=== DEV2 ===
The boot-ROM.

=== DEV3 ===
USB

=== DEV4 ===
[[SPU2]]

=== DEV5 ===
[[MechaCon]]

=== DEV6 ===
???

=== DEV7 ===
???

=== DEV8 ===

Originally, the parallel port of the PS1. on the PS2 it is unused on retail models, but even the DECKARD emulator still has code for handling DEV8. [https://israpps.github.io/PPC-Monitor/docs/IOP_devquirck/Dev8_Exp2.html seems to be recycled for PowerPC UART]. On DTL-T models, the DRP interface (for debugging with DECI2) is connected.

=== DEV9 ===
[[SSBUS controller]] (on SCPH-3XXXX and up) or PCMCIA controller (on SCPH-1x000) as well as devices connected to these ([[SPEED]]).