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Commit | Line | Data |
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9174ab02 MC |
1 | ------------------------------------------------------------------------------- |
2 | SEGA Maple bus | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This is a set of dumps of the SEGA Dreamcast Maple bus. | |
6 | ||
7 | For details see: | |
8 | http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6,324,603.PN.&OS=PN/6,324,603&RS=PN/6,324,603 | |
9 | ||
10 | ||
11 | Logic analyzer setup | |
12 | -------------------- | |
13 | ||
14 | The logic analyzer used was a genuine Saleae Logic16 (at 20 MHz): | |
15 | ||
16 | Probe Maple bus | |
17 | --------------------- | |
18 | 1 SDCKA | |
19 | 5 SDCKB | |
20 | ||
21 | ||
22 | Data | |
23 | ---- | |
24 | ||
25 | Three different peripherals (a controller, a memory card, and a rumble | |
26 | pack) are probed using "Device Request" packets, each of which is | |
27 | replied to with a "Device status" packet. | |
28 |