ハードウェア - DSカードポート


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DS card

Mask-ROM: Macronix MX23Lxxx08
Pinout
Pin Mark Name Description
1 > GND Ground
2 CLK Clock. High when idle. Data must be stable on rising edge.
3 N NC Unknown. Possibly to program encryption code.
4 i ROM /CS Selects ROM when low. 8 byte command is expected after pulling low. After that, direction is reversed and optional data is transferred.
5 n /RESET Reset line
6 t EEPROM /CS Selects EEPROM when low. 1 byte command is expected after pulling low. After that, optional data is transferred.
7 e IRQ Grounded in cartridge. Used to detect removal.
8 n +3V3 Power
9 d I/O0 Data
10 o I/O1 Data
11 I/O2 Data
12 C I/O3 Data
13 0 I/O4 Data
14 1 I/O5 Data
15 - I/O6 Data / SPI data from EEPROM
16 0 I/O7 Data / SPI data to EEPROM
17 1 GND Ground


   .--------------------.
GND | 1 44 | RES
VCC | 2 43 | GND
GND | 3 42 | IRQ
GND | 4 41 | GND
CLK | 5 40 | GND
GND | 6 39 | GND
GND | 7 38 | GND
GND | 8 37 | GND
GND | 9 36 | GND
GND | 10 35 | GND
GND | 11 34 | GND
GND | 12 33 | GND
GND | 13 32 | GND
GND | 14 31 | GND
GND | 15 30 | GND
GND | 16 29 | GND
CS | 17 28 | GND
IO0 | 18 27 | IO7
IO1 | 19 26 | IO6
IO2 | 20 25 | IO5
IO3 | 21 24 | IO4
GND | 22 23 | VCC
   '--------------------'


Specifications

   * Time between command and data: 3.5us (max) (4us when not counting last 3 command bytes)
   * Sequential access time: 140ns (max)
   * Dimensions: 32mm x 34mm
   * Contact pitch: 1.5mm 


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