From iPodLinux
The Portal Player PP5002 is used in the 1st, 2nd and 3rd generation iPods.
Overview
| location | description
|
| 0x28000000 | SDRAM (32MB)
|
| 0x40000000 | Fast RAM, also called IRAM (96KB)
|
| 0xf0000000 | Cache Control
|
CPU ID
| location | description
|
| 0xc4000000 | Processor ID
|
| | 0x55 CPU
|
| | 0xaa COP
|
Interrupt Controller
| location | description
|
| 0xcf001000 | CPU interrupt status
|
| | 0x1 IDE0
|
| | 0x10 ser0
|
| | 0x20 i2c
|
| | 0x80 ser1
|
| | 0x800 timer1
|
| | 0x4000 GPIO
|
| 0xcf00101c | forced interrupt clear
|
| 0xcf001020 | CPU interrupt enable mask status
|
| 0xcf001024 | CPU interrupt enable mask set
|
| 0xcf001028 | CPU interrupt enable mask clear
|
| 0xcf001030 | COP interrupt enable mask status
|
| 0xcf001034 | COP interrupt enable mask set
|
| 0xcf001038 | COP interrupt enable mask clear
|
Timer Controller
| location | description
|
| 0xcf001100 | timer1 config
|
| 0xcf001104 | timer1 present value
|
| 0xcf001108 | timer2 config
|
| | 0xe0000000 config bits, rest are counter value
|
| | 0x80000000 enable?
|
| 0xcf00110c | timer2 present value
|
| 0xcf001110 | microsecond timer
|
Device Controller
| location | description
|
| 0xcf005030 | device reset
|
| | 0x4 (2) system
|
| | 0x100 (8) i2c
|
| 0xcf005000 | clock enable
|
CPU Controller
| location | description
|
| 0xcf004054 | sleep CPU
|
| | 0xce to wake up CPU
|
| | 0xca to sleep CPU
|
| 0xcf004058 | sleep COP
|
| | 0xce to wake up COP
|
| | 0xca to sleep COP
|
GPIO Controller
| location | description
|
| 0xcf000000 | GPIO port A enable
|
| 0xcf000004 | GPIO port B enable
|
| 0xcf000008 | GPIO port C enable
|
| 0xcf00000c | GPIO port D enable
|
| 0xcf000010 | GPIO port A output enable
|
| 0xcf000020 | GPIO port A output value
|
| 0xcf000030 | GPIO port A input value
|
| 0xcf000040 | GPIO port A interrupt status
|
| 0xcf000050 | GPIO port A interrupt enable
|
| 0xcf000060 | GPIO port A interrupt level
|
| 0xcf000070 | GPIO port A interrupt clear
|
LCD Controller
| location | description
|
| 0xc0001000 | LCD control
|
| | 0x2 backlight
|
| | 0x8000 LCD busy
|
Serial Controller
| location | description
|
| 0xc0006000 | ser0
|
| 0xc0006040 | ser1
|
