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| − | {{note|this page is horribly outdated and refers to GTA01v3. Please see
| + | #REDIRECT [[Philips_PCF50606]] |
| − | http://svn.openmoko.org/trunk/doc/hardware/ (*/pmu-voltage.txt) for up-to-date information. If somebody could put this in the wiki here, it would be great}}
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| − | [[Neo1973_Power_Management]] Seems to have updated information now, covering more than the pmu-voltage.txt file - and not derivable from there. Should this page be deleted?--[[User:Speedevil|Speedevil]] 01:39, 21 February 2007 (CET)
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| − | == Overview ==
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| − | The PCF50606 is the Power Management Unit used in GTA01. Apparently this unit is very popular in MP3 players, as the Rockbox project has talked a lot about writing a driver for it (but hasn't completed any, as far as we know).
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| − | Configuration of this PMU is done via an [[I2C]] bus from the [[S3C2410]].
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| − | The PMU also connects to EINT16 and thus can issue interrupts to the main CPU.
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| − | === Voltage Regulators ===
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| − | {| border="1" cellspacing="0" cellpadding="2"
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| − | |----- bgcolor="#eeeeff"
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| − | ! Name
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| − | ! Voltage
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| − | ! Users
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| − | |-
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| − | | DCD
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| − | | 3.3V
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| − | | NAND FLASH, SDRAM, S3C2410 Memory and IO
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| − | |-
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| − | | DCUD
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| − | | 1.8V
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| − | | S3C2410 Core
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| − | |-
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| − | | DCDFB
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| − | | 3.3V
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| − | | I/O 3.3V, [[LM4857]] Digital, Vibrator
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| − | |-
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| − | | D3
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| − | | 3.3V
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| − | | [[WM8976]] Audio Codec,
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| − | |-
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| − | | D2
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| − | | 0.9..3.3V (variable)
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| − | | microSD Slot
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| − | |-
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| − | | D1
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| − | | 3.3V
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| − | | VRF (GSM RF ?)
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| − | |-
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| − | | IO
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| − | | 2.8V
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| − | | VTCXO
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| − | |-
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| − | | LP
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| − | | 3.3V
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| − | | LP LCM + Panel?
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| − | |}
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| − | === Register dump after bootup ===
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| − | Since [[u-boot]] has built-in I2C support for the S3C2410, we can read out the register set of the PC50606 using a simple command:
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| − | <pre>
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| − | GTA01 # imd 0x08 0x00 0x3c
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| − | 0000: 4d 7b 48 01 00 00 00 00 64 05 43 23 00 00 01 01 M{H.....d.C#....
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| − | 0010: 00 7f 7f 3f 07 3f 1f ff 00 00 ff d0 c8 00 30 88 ...?.?........0.
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| − | 0020: 00 83 30 f8 c2 c4 90 f8 01 05 14 10 55 13 00 00 ..0.........U...
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| − | 0030: 00 00 00 00 0e 80 4d 4d 04 00 00 00 ......MM....
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| − | </pre>
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| − | [[Category:Neo1973 Hardware]] | + | |
