|
楼主 |
发表于 2007-7-8 20:36
|
显示全部楼层
iPod线脚定义
收藏一下..这个肯定会有需要的时候罗$ _5 e9 e' ~) [. v2 S5 q9 H& O
2 b& d3 r5 U% P- ]6 FApple iPod dock interface pinout | connector wiring scheme | used in 3rd and later generation iPods for charging,connecting to a PC via USB or Firewire, to a stereo via line-out, to aserial device (controlled via the Apple Accessory Protocol). Thisconnector exists in all Apple iPod MP3 player (iPod 1G, 2G, 3G, 4G, 5G,Nano)6 \. _3 E1 x5 m. U7 x4 C5 N
3 \( n$ c! C% `3 [, u- a+ C9 U9 o
/ n% d: X+ a3 ]! A( h' l
5 {0 X Z. g8 j1 e" W; W$ Z
30pin线脚图 at the player ( white side up)
! }9 i8 H, F3 s) A; T
4 a& h+ R2 [% L0 {6 a6 @% x0 c- A' J2 A( i+ s" R8 {4 z
Pin | Signal | Description | 1 | GND | Ground (-), internaly connected with Pin 2 on iPod motherboard | 2 | GND | Audio & Video ground (-), internaly connected with Pin 2 on iPod motherboard | 3 | Right | Line Out - R (+) (Audio output, right channel) | 4 | Left | Line Out - L(+) (Audio output, left channel) | 5 | Right In | Line In - R (+) | 6 | Left In | Line In - L (+) | 8 | Video Out | Composite video output (only when slideshow active on iPod Photo) | 9 | S-Video Chrominance output | for iPod Color, Photo only | 10 | S-Video Luminance output | for iPod Color, Photo only | 11 | GND | Serial GND | 12 | Tx | ipod sending line, Serial TxD | 13 | Rx | ipod receiving line, Serial RxD | 15 | GND | Ground (-), internaly connected with pin 16 on iPod motherboard | 16 | GND | USB GND (-), internaly connected with pin 15 on iPod motherboard | 18 | 3.3V | 3.3V Power (+) % u6 I- Y+ q2 N) D& `
Stepped up to provide +5 VDC to USB on iPod Camera Connector. If iPod is put to sleep while Camera Connector is present, +5 VDC at this pin slowly drains back to 0 VDC. | 19,20 | +12V | Firewire Power 12 VDC (+) | 21 | Accessory Indicator/Serial enable | Different resistances indicate accessory type:, l0 W" B- L A/ O- h2 J! k
1kOhm - iPod docking station, beeps when connected
% E7 q. M( L6 `4 J/ | 10kOhm - Takes some iPods into photo import mode- y# g( t& M [5 c) B# L
500kOhm - related to serial communication / used to enable serial communications Used in Dension Ice Link Plus car interface) b2 x1 M. M9 M" K
1MOhm - Belkin auto adaptor, iPod shuts down automatically when powerdisconnected Connecting pin 21 to ground with a 1MOhm resistor doesstop the ipod when power (i.e. Firewire-12V) is cut. Looks to be thatwhen this pin is grounded it closes a switch so that on loss of powerthe Ipod shuts off. Dock has the same Resister. | 22 | TPA (-) | FireWire Data TPA (-) | 23 | 5 VDC (+) | USB Power 5 VDC (+) | 24 | TPA (+) | FireWire Data TPA (+) | 25 | Data (-) | USB Data (-) | 26 | TPB (-) | FireWire Data TPB (-) | 27 | Data (+) | USB Data (+)! _/ B' P1 w3 \6 a* r
Pins 25 and 27 may be used in different manner. To force the iPod 5G to charge in any case, when 'USB Power 5 VDC' (pin 23) is fed, 25 must be connected to 5V through a 10kOhm resistor, and 27 must be connected to the Ground (for example: pin 1) with a 10kOhm resistor. | 28 | TPB (+) | FireWire Data TPB (+) | 29,30 | GND | FireWire Ground (-) | Back side of dock connector;
3 F! J1 t; q9 y7 a, s* y8 Y 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
* P- k K6 |2 ~& O 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29Pins 1,2 connected on motherboard.( v2 f# S1 \+ b- }
Pins 15,16 connected on motherboard.
3 \1 `! C4 _( I7 U( Y& x& g, zPins 19,20 connected on motherboard.
7 [* u7 j( ]5 W% UPins 29,30 connected on motherboard.. \* j- U, K$ g' e' T# A
If you disassemble the original apple-ipod-dock-connector-cable andlook at the connector itself, on the back side, where it is soldered,you can see the number 1 and 30 (e.g. pin 1 and 30). In thisdescription NUMBERING is INVERSED: pin 1 is pin 30 and pin 30 is pin 2,so, don't look at numbers on connector. & u8 N& T- Z) a8 M# i2 Z; z" j' ~
The remote control, iTalk and other serial devices use AppleAccessory Protocol for communication with iPOD. This protocol wasintroduced with the 3rd generation iPods, and is also compatible withthe 4th generation iPods and mini iPods. The connections uses astandard 8N1 (one startbit 8 data bits 1 Stopbit) serial protocol,19200 baud (higher rates up to 57600 also possible, but speed fasterthan 38400 may cause problems with large amounts of data), delay of 12microseconds inserted between end of the stopbit and the beginning ofthe next startbit (also working without this delay).
; [" u6 M8 D8 T) j. r9 [Electrical: high +3,3V low 0V
7 F `9 y5 z3 T2 i6 Ddefault line state: high. Codes used for communication with peripherals are here3 g8 w2 u1 \* |2 P
This device may be connected to the firewire computer port by straight cable (TPB+/-, TPA +/- shoulde be twisted pairs in cable)
L' a" Q; k0 y: w9 a7 q( T* ?) I |
/ q' C5 i4 N9 p A, \0 [" R
http://pinouts.ru/Devices/ipod_pinout.shtml |
|