TWSI
|
Address |
ChipLoc |
PartNum |
Description |
Useful links
|
| TWSI |
0x1b |
u17 |
TC654 |
Microchip fan controller. |
Datasheet
|
| TWSI |
0x64 |
u15 |
PCF8563 |
RTC. |
Datasheet
|
| TWSI |
0x48 |
u16 |
LM75BIMM-3 |
temperature sensor. |
Datasheet
|
| TWSI |
0x51 |
? |
? |
Most likely U2 (custom bootrom, perhaps).
|
I don't think 0x51 is U2 (or indeed U1 or U3). These are identified below as programmable regulators, but
the interface on them is not I2C. B22824@prtnx.com 17:54, 20
June 2011 (UTC)
Other
| ChipLocation |
PartNumber |
Description |
Useful Links
|
| U10 |
88F6281 |
SoC |
|
| U18 |
88E1116R-NNC1 |
Gigabit Ethernet
|
| U6, U7 |
74hct132d |
Quad 2-input NAND Schmitt Trigger.
|
| U8, |
74hct74d |
Dual D-type flip-flop with set and reset.
|
| U1, U3 |
88PG8227 |
Programmable Voltage Regulators
|
| U11, U12 |
K4T51163QG |
64MB DDR2 SDRAM x 2
|
| T11 |
LAN3219 |
Transformer, NIC isolation
|
| Q4 |
78D05L |
5v regulator
|
| U14 |
K9F2G08U0B |
256MB NAND Memory
|
| U19 |
TPS2065 |
1 Amp solid state switch (controls power to the unit)
|
Unknown
| ChipLocation |
PartNumber |
Description
|
| Q3, Q5 |
BA9S1L? |
By the identifier assumed to be a transistor array or a fet. Maybe controls power up sequence.
|
| U2 |
MRVL H101 9251 |
This is the one we need to know. Made by Marvell.
It's a 88PH8101 voltage regulator.
|
| Q8 |
AJ3AF FDS 6678AZ |
Another FET.
|
