Editing Card Adapter
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=== Sony Playstation Memory Card (SCPH-1020) === | === Sony Playstation Memory Card (SCPH-1020) === | ||
[[File:LC86F8604A-2.jpg|thumbnail|Package pinouts and dimensions of the standard LC86F8604A chip]] | [[File:LC86F8604A-2.jpg|thumbnail|Package pinouts and dimensions of the standard LC86F8604A chip]] | ||
The "SONY CXD8732AQ" chip is installed on memory cards with "SPC02K1020B" boards, however, the text layer on the board says that it's an "LC86F8604A" chip. So, the CXD8732AQ is most probably a standard LC86F8604A chip with a Sony Memory Card BIOS ROM on it. | The "SONY CXD8732AQ" chip is installed on memory cards with "SPC02K1020B" boards, however, the text layer on the board says that it's an "LC86F8604A" chip. So, the CXD8732AQ is most probably a standard LC86F8604A chip (more on that below) with a Sony Memory Card BIOS ROM on it. | ||
The "SONY CXD8732AQ" comes in a huge 64 QFP pin package, but it connects only to: | The "SONY CXD8732AQ" comes in a huge 64 QFP pin package, but it connects only to: | ||
5 = /IRQ7 (via 22 ohm) 2 = /RESET (from U2) | 5 = /IRQ7 (via 22 ohm) 2 = /RESET (from U2) | ||
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13 = JOYDAT (via 22 ohm) All other pins = Not connected | 13 = JOYDAT (via 22 ohm) All other pins = Not connected | ||
Aside from that chip, the board additionally contains some resistors, capacitors, z-diodes (for protection against too high voltages), a 6MHz oscillator (for the CPU), and a 5pin reset generator (on the cart edge connector, the supply pins are slightly longer than the data signal pins, so when inserting the cartridge, power/reset gets triggered first; the 7.5V supply pin is left unconnected, only 3.5V are used). | |||
Caution: The "diagonal edge" at the upper-left of the CXD8732AQ chip is Pin 49 (not pin 1), following the pin numbers on the board (and the Sanyo datasheet pinouts), pin 1 is at the lower-left (near the dot mark) and follow a counterclockwise move notation. | Caution: The "diagonal edge" at the upper-left of the CXD8732AQ chip is Pin 49 (not pin 1), following the pin numbers on the board (and the Sanyo datasheet pinouts), pin 1 is at the lower-left (near the dot mark) and follow a counterclockwise move notation. |