“SticKey” – “sticks + keys” - Input controller (RP2354B), pronounced “Sticky”

CPU overclocked from (1x) 150Mhz (1.1v) to (2x) 300Mhz (1.2v), possibly to (3x) 460Mhz (1.5v) – other have driven the RP2350/4B to over 600Mhz (2v).

SticKey has 2MB flash built-in and no ps-ram. Pin 8 is used for FRAM access.

SticKey is an I/O controller that supports:

Four Atari/Sega DP9 stick ports, (6 button sticks, analog paddles, 9 pin mice). Port A can optionally be a HS TX connection. All ports are 5v logic.

Internal USB keyboard connector. If (internally) a hub has been added then "debug" storage is available to Demon via the SPI slave interface.

The 2MB internal flash memory is used to boot SticKey.

Each port can be configured for 5v I2C SDA/SCL (pins 1 and 2) - Wii Nunchuck/SNES classic

Each port can be configured for Data, clock, latch (pins 1, 2 and 3) - SNES original

Each port can be configured for Data, clock, ATT, CMD, ACK (pins 1, 2, 3, 4 and 6) - PSX/PS2

Each port can be configured for serial port TX/RX (pins 7 and 9)

Each port can be configured for PC PS2 keyboard/mouse (pins 1,2,3,4 and 5)

FRAM16 map (000000-FFFFFF)

Start address	End address	Size	Description
000000	3FFFFF	400000	4MB SRAM
040000	7FFFFF	400000	Reserved

GPIO	Function	GPIO	Function
0	SPI0 RX - Demon slave (controller + key output)	29	stick B pin 6, ACK
1	SPI0 CSn	30	stick B pin 7 - Atari +V, PIO TX
2	SPI0 SCK	31	stick B pin 9 – Analog A1, PIO RX
3	SPI0 TX	32	stick C pin 1, PIO I2C SDA, DATA1
4	I2C0 SDA –5v analog SDA	33	stick C pin 2, PIO I2C SCL, CLOCK1
5	I2C0 SCL - 5v analog SCL	34	stick C pin 3, Latch/ATT, DATA2
6	I2C1 SDA – Razz slave (controller + key output)	35	stick C pin 4, CMD, CLOCK2
7	I2C1 SCL – Razz slave	36	stick C pin 5 – Analog B2 / Sega +V, +V
8	FRAM	37	stick C pin 6, ACK
9	Controller interrupt out	38	stick C pin 7 - Atari +V, PIO TX
10	SPI1 SCK – SG2002 slave	39	stick C pin 9 - Analog A2, PIO RX
11	SPI1 TX/MOSI – SG2002 slave	40	stick D pin 1, PIO I2C SDA, DATA1
12	HS TX 0 - SPI1 RX/MISO – SG2002 slave	41	stick D pin 2, PIO I2C SCL, CLOCK1
13	HS TX 1 - SPI1 CSn – SG2002 slave	42	stick D pin 3, Latch/ATT, DATA2
14	HS TX 2 – TX0 to Jazz	43	stick D pin 4, CMD, CLOCK2
15	HS TX 3 – I2C Alert/Ready input	44	stick D pin 5 – Analog B3 / Sega +V, +V
16	HS TX 4 – stick A pin 1, PIO I2C SDA, DATA1	45	stick D pin 6, ACK
17	HS TX 5 – stick A pin 2, PIO I2C SCL, CLOCK1	46	stick D pin 7 - Atari +V, PIO TX
18	HS TX 6 - stick A pin 3, Latch/ATT, DATA2	47	stick D pin 9 – Analog A3, PIO RX
19	HS TX 7 - stick A pin 4, CMD, CLOCK2	SWDIO	Connected to DeMon to
20	CLK0 IN - stick A pin 5 – Analog B0 / Sega +V, +V	SWDCLK	allow debug/programming
21	stick A pin 6, ACK	ADCREF
22	stick A pin 7 - Atari +V, PIO TX	3V3
23	stick A pin 9 - Analog A0, PIO RX	BOOTSEL
24	stick B pin 1, PIO I2C SDA, DATA1	USB D-	Internal keyboard USB master port
25	stick B pin 2, PIO I2C SCL, CLOCK1	USB D+
26	stick B pin 3, Latch/ATT, DATA2	RUN	Connected to DeMon
27	stick B pin 4, CMD, CLOCK2	3V3 EN
28	stick B pin 5 – Analog B1 / Sega +V, +V	VBUS