Hardware/Latte IRQs

Latte IRQs
Access
Espresso	Partial
Starbuck	Full
Registers
Base	0x0d800030, 0x0d800440
Length	0x10, 0x48
Access size	32 bits
Byte order	Big Endian

IRQ Sources

IRQ	Description
0	Starbuck Timer
1	NAND Interface
2	AES Engine
3	SHA-1 Engine
4	USB Host Controller (EHCI)
5	USB Host Controller (OHCI0)
6	USB Host Controller (OHCI1)
7	SD Host Controller
8	802.11 Wireless
9	Unknown
10	Latte GPIOs (Espresso)
11	Latte GPIOs (Starbuck)
12	Unknown
13	Undefined
14	Undefined
15	Undefined
16	Undefined
17	Power button (reset)
18	Drive Interface (DI)
19	Undefined
20	Unknown
21	Undefined
22	Undefined
23	Undefined
24	Undefined
25	Undefined
26	Undefined
27	Undefined
28	Unknown
29	Undefined
30	IPC (Espresso)
31	IPC (Starbuck)

Register List

The Latte IRQ engine has two different register blocks: a global block compatible with the old Wii hardware (Wood), and a new SMP block split across the three Wii U's (Latte) PPC cores and the ARM core. Each core's region of the SMP block has registers equivalent to the old global block.

Compat block

Global compat block
Address	Bits	Name	Description
0x0d800030	32	LT_INTSR_PPC_COMPAT	Triggered IRQs for the PPC in vWii
0x0d800034	32	LT_INTMR_PPC_COMPAT	Allowed IRQs for the PPC in vWii
0x0d800038	32	LT_INTSR_ARM_COMPAT	Triggered IRQs for the ARM in vWii
0x0d80003c	32	LT_INTMR_ARM_COMPAT	Allowed IRQs for the ARM in vWii
0x0d800040	32	LT_INTMR_ARM2x_COMPAT	Unknown

SMP block

SMP block - PPC core 0
Address	Bits	Name	Description
0x0d800440	32	LT_INTSR_AHBALL_PPC0	Triggered AHB IRQs for PPC core 0 (all)
0x0d800444	32	LT_INTSR_AHBLT_PPC0	Triggered AHB IRQs for PPC core 0 (Latte only)
0x0d800448	32	LT_INTMR_AHBALL_PPC0	Allowed AHB IRQs for PPC core 0 (all)
0x0d80044c	32	LT_INTMR_AHBLT_PPC0	Allowed AHB IRQs for PPC core 0 (Latte only)

SMP block - PPC core 1
Address	Bits	Name	Description
0x0d800450	32	LT_INTSR_AHBALL_PPC1	Triggered AHB IRQs for PPC core 1 (all)
0x0d800454	32	LT_INTSR_AHBLT_PPC1	Triggered AHB IRQs for PPC core 1 (Latte only)
0x0d800458	32	LT_INTMR_AHBALL_PPC1	Allowed AHB IRQs for PPC core 1 (all)
0x0d80045c	32	LT_INTMR_AHBLT_PPC1	Allowed AHB IRQs for PPC core 1 (Latte only)

SMP block - PPC core 2
Address	Bits	Name	Description
0x0d800460	32	LT_INTSR_AHBALL_PPC2	Triggered AHB IRQs for PPC core 2 (all)
0x0d800464	32	LT_INTSR_AHBLT_PPC2	Triggered AHB IRQs for PPC core 2 (Latte only)
0x0d800468	32	LT_INTMR_AHBALL_PPC2	Allowed AHB IRQs for PPC core 2 (all)
0x0d80046c	32	LT_INTMR_AHBLT_PPC2	Allowed AHB IRQs for PPC core 2 (Latte only)

SMP block - ARM core
Address	Bits	Name	Description
0x0d800470	32	LT_INTSR_AHBALL_ARM	Triggered AHB IRQs for ARM core (all)
0x0d800474	32	LT_INTSR_AHBLT_ARM	Triggered AHB IRQs for ARM core (Latte only)
0x0d800478	32	LT_INTMR_AHBALL_ARM	Allowed AHB IRQs for ARM core (all)
0x0d80047c	32	LT_INTMR_AHBLT_ARM	Allowed AHB IRQs for ARM core (Latte only)
0x0d800480	32	LT_INTMR_AHBALL_ARM2x	Unknown (all)
0x0d800484	32	LT_INTMR_AHBLT_ARM2x	Unknown (Latte only)