Table of Contents

NeoFlash MK6/R6 (NDS) programming

SPI commands

Read response (9F FF FF FF)

Responds with a dummy byte, then three response bytes.

Lock? (FE FD FB F5)

Unlock? (FE FD FB F7)

Mode: accelerometer (DS Motion Card) (FE FD FB F8)

Mode: 4kbit EEPROM (FE FD FB F9)

Mode: 512kbit EEPROM (FE FD FB FA)

Mode: 2/4/8mbit FLASH (FE FD FB FB)

TODO: Responds with 20 80 14?

ROM commands

Set card chip ID? (B9 01 00 00 dd cc bb aa)

Set card chip ID to aa bb cc dd.

? (D7 50 ?? 00 00 00 00 00)

Part of the TF card initialization process? ?? is 00 or 80 - maybe controls TF card reset?

TF: Write command byte (D7 57 xx 00 00 00 00 00)

TF: Read command bits (D7 6x 00 00 00 00 00 00)

TF: Read data, 1024 x 4 bits (D7 4E 00 00 00 00 00 00)

Returns 1024 bytes; each byte has bits 0-3 set to the 4 bits read.

TF: Write data, 4 bits (D7 38 0x 00 00 00 00 00)

Read halfword (F1 tt aa aa aa aa 00 00)

Returns 2 bytes, little endian.

Write halfword (F3 0t aa aa aa aa dd dd)

aa and dd are specified in reverse endianness.