GAP8 (Modified)

The original GAP8 design offers limited memory capacity, making it challenging to efficiently tile memory blocks for transformer architectures—particularly when implementing KV caches. To address this, we adjusted several memory configuration parameters in the simulated environment prior to composing the real RTL design for testing purposes.

Noticeable changes

- Increased Cluster L1 size: 64 KB -> 128 KB
    - Address Space 0x10000000 - 0x1001FFFF

- Increased FC L1 size: 16 KB -> 64 KB
    - Address Space 0x1B000000 - 0x1B00FFFF

- Modified L2
    - L2 intereleaver features 4 -> 5 128 KB blocks working independently depending on its power mode.

Memory Map

Aliased Memory Area

Area	Address space	Alternative	Size
Aliased memory map area	0x00000000 - 0x003FFFFF		4 MiB

Aliased Memory Area (FC)

Area	Address space	Alternative	Size
✅ FC L1 RAM (64KiB)	0x00000000 - 0x0000FFFF	0x1B000000 - 0x1B00FFFF	64 KiB
FC control unit registers	0x00200000 - 0x002003FF	0x1B200000 - 0x1B2003FF	1 KiB
FC timer registers	0x00200400 - 0x002007FF	0x1B200400 - 0x1B2007FF	1 KiB
FC event unit registers (FC private)	0x00204000 - 0x002043FF		1 KiB
FC event unit registers (Global)		0x1B200800 - 0x1B200FFF	2 KiB
⚠️ FC Memory protection unit registers	0x00204400 - 0x002047FF		1 KiB
FC instruction cache control unit registers	0x00201400 - 0x002017FF	0x1B201400 - 0x1B2017FF	1 KiB
FC Core 0 (Debug Unit)	0x00300000 - 0x00307FFF	0x1B300000 - 0x1B307FFF	32 KiB

Aliased Memory Area (Cluster)

Area	Address space	Alternative	Size
✅ Cluster L1 RAM (128KiB)	0x00000000 - 0x0001FFFF	0x10000000 - 0x1001FFFF	128 KiB
Cluster L1 memory test and set unit	0x00100000 - 0x0010FFFF	0x10100000 - 0x1010FFFF	64 KiB
Cluster control unit registers	0x00200000 - 0x002003FF	0x10200000 - 0x102003FF	1 KiB
Cluster timer registers	0x00200400 - 0x002007FF	0x10200400 - 0x102007FF	1 KiB
Cluster event unit registers (Global)		0x10200800 - 0x10200FFF	2 KiB
⚠️ Cluster event unit registers (Cluster private)	0x00204000 - 0x002047FF		2 KiB
Cluster instruction cache control unit	0x00201400 - 0x002017FF	0x10201400 - 0x102017FF	1 KiB
⚠️ Hardware convolution engine	0x00201800 - 0x00201BFF	0x10201800 - 0x10201BFF	1 KiB
⚠️ DMA CMD	0x00204400		-
⚠️ DMA Status	0x00204404		-
Cluster Core 0 (Debug Unit)	0x00300000 - 0x00307FFF	0x10300000 - 0x10307FFF	32 KiB
Cluster Core 1 (Debug Unit)	0x00308000 - 0x0030FFFF	0x10308000 - 0x1030FFFF	32 KiB
Cluster Core 2 (Debug Unit)	0x00310000 - 0x00317FFF	0x10310000 - 0x10317FFF	32 KiB
Cluster Core 3 (Debug Unit)	0x00318000 - 0x0031FFFF	0x10318000 - 0x1031FFFF	32 KiB
Cluster Core 4 (Debug Unit)	0x00320000 - 0x00327FFF	0x10320000 - 0x10327FFF	32 KiB
Cluster Core 5 (Debug Unit)	0x00328000 - 0x0032FFFF	0x10328000 - 0x1032FFFF	32 KiB
Cluster Core 6 (Debug Unit)	0x00330000 - 0x00337FFF	0x10330000 - 0x10337FFF	32 KiB
Cluster Core 7 (Debug Unit)	0x00338000 - 0x0033FFFF	0x10338000 - 0x1033FFFF	32 KiB

Cluster Subsystem

Area	Address space	Alternative	Size
✅ Cluster L1 RAM (128KiB)	0x10000000 - 0x1001FFFF	0x00000000 - 0x0001FFFF	128 KiB
✅ Cluster L1 memory test and set unit	0x10100000 - 0x1010FFFF	0x00100000 - 0x0010FFFF	64 KiB
Cluster control unit	0x10200000 - 0x102003FF	0x00200000 - 0x002003FF	1 KiB
Cluster timer registers	0x10200400 - 0x102007FF	0x00200400 - 0x002007FF	1 KiB
Cluster event unit registers (Global)	0x10200800 - 0x10200FFF		2 KiB
Cluster event unit registers (Cluster private)		0x00204000 - 0x002047FF	2 KiB
Cluster instruction cache control unit	0x10201400 - 0x102017FF	0x00201400 - 0x002017FF	1 KiB
Hardware convolution engine	0x10201800 - 0x10201BFF	0x00201800 - 0x00201BFF	1 KiB
Cluster Core 0 (Debug Unit)	0x10300000 - 0x10307FFF	0x00300000 - 0x00307FFF	32 KiB
Cluster Core 1 (Debug Unit)	0x10308000 - 0x1030FFFF	0x00308000 - 0x0030FFFF	32 KiB
Cluster Core 2 (Debug Unit)	0x10310000 - 0x10317FFF	0x00310000 - 0x00317FFF	32 KiB
Cluster Core 3 (Debug Unit)	0x10318000 - 0x1031FFFF	0x00318000 - 0x0031FFFF	32 KiB
Cluster Core 4 (Debug Unit)	0x10320000 - 0x10327FFF	0x00320000 - 0x00327FFF	32 KiB
Cluster Core 5 (Debug Unit)	0x10328000 - 0x1032FFFF	0x00328000 - 0x0032FFFF	32 KiB
Cluster Core 6 (Debug Unit)	0x10330000 - 0x10337FFF	0x00330000 - 0x00337FFF	32 KiB
Cluster Core 7 (Debug Unit)	0x10338000 - 0x1033FFFF	0x00338000 - 0x0033FFFF	32 KiB

ROM Memory

Area	Address space	Alternative	Size
✅ ROM (8kB)	0x1A000000 - 0x1A001FFF		8 KiB

SoC Peripherals Subsystem

Area	Address space	Size
SoC FLL	0x1A100000 - 0x1A1007FF	2 KiB
Cluster FLL	0x1A100800 - 0x1A100FFF	2 KiB
GPIO	0x1A101000 - 0x1A101FFF	4 KiB
SoC control unit	0x1A104000 - 0x1A104FFF	4 KiB
Advanced timer	0x1A105000 - 0x1A105FFF	4 KiB
SoC event generator	0x1A106000 - 0x1A106FFF	4 KiB
PMU DLC bridge	0x1A107000 - 0x1A107FFF	4 KiB
RealTime Counter	0x1A108000 - 0x1A108FFF	4 KiB
Efuse	0x1A109000 - 0x1A109FFF	4 KiB

uDMA Subsystem

Area	Address space	Size
uDMA LVDS interface	0x1A102000 - 0x1A10207F	128 B
SPI Master Channel 0	0x1A102080 - 0x1A1020FF	128 B
SPI Master Channel 1	0x1A102100 - 0x1A10217F	128 B
uDMA Hyperbus interface	0x1A102180 - 0x1A1021FF	128 B
uDMA UART interface	0x1A102200 - 0x1A10227F	128 B
I2C Channel 0	0x1A102280 - 0x1A1022FF	128 B
I2C Channel 1	0x1A102300 - 0x1A10237F	128 B
uDMA MEMCPY interface	0x1A102380 - 0x1A1023FF	128 B
uDMA I2S interface	0x1A102400 - 0x1A10247F	128 B
uDMA CPI interface	0x1A102480 - 0x1A1024FF	128 B
uDMA control unit	0x1A102780 - 0x1A1027FF	128 B

Fabric Controller Subsystem

Area	Address space	Alternative	Size
✅ FC L1 RAM (64KiB)	0x1B000000 - 0x1B00FFFF	0x00000000 - 0x0000FFFF	64 KiB
FC control unit registers	0x1B200000 - 0x1B2003FF	0x00200000 - 0x002003FF	1 KiB
FC timer	0x1B200400 - 0x1B2007FF	0x00200400 - 0x002007FF	1 KiB
FC event unit (Global)	0x1B200800 - 0x1B200FFF		2 KiB
FC event unit (FC private)		0x00204000 - 0x002043FF	1 KiB
FC instruction cache control unit	0x1B201400 - 0x1B2017FF	0x00201400 - 0x002017FF	1 KiB
FC Core 0 (Debug Unit)	0x1B300000 - 0x1B307FFF	0x00300000 - 0x00307FFF	32 KiB

L2 Memory

Area	Address space	Alternative	Size
✅ L2 RAM (512kB)	0x1C000000 - 0x1C080000		512 KiB