MotorolaC123 » History » Version 12
vogelchr, 02/19/2016 10:48 PM
(fixed minor error in Image() tag)
1 | 6 | laforge | [[PageOutline]] |
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2 | 1 | laforge | = Motorola C123 = |
3 | |||
4 | The C123 seems to be one of many ODM phones that Motorola bought from Compal communications in Taiwan. It seems (nearly?) identical with the C118. |
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5 | |||
6 | 4 | laforge | The internal name of the hardware is E88 |
7 | |||
8 | 2 | laforge | == Specifications == |
9 | * GSM 900 / GSM 1800 dual-band |
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10 | * 101x45x21 mm, 86 grams |
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11 | * no GPRS |
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12 | * 920mAh Li-Ion battery |
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13 | * Ti Calypso/Iota/Rita chipset |
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14 | |||
15 | 1 | laforge | == Hardware == |
16 | 10 | laforge | [[Image(MotorolaC123:c123_pcb.jpg, right, 33%)]] |
17 | 2 | laforge | |
18 | 9 | laforge | === Schematics === |
19 | |||
20 | The schematics (part of the Level 3 Service Manual) can be found at various mobile phone related |
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21 | websites, including http://www.anysvc.net/downloadcenter/down/200610/20061016154029.rar |
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22 | |||
23 | 2 | laforge | === GSM Chipset === |
24 | |||
25 | 3 | laforge | * DBB: Ti Calypso Baseband, D751749ZHH model (Calypso Lite G2), includes 256kBytes of internal SRAM |
26 | 2 | laforge | * ABB: Ti TWL3025BZGR |
27 | * RF: TRF6151C |
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28 | * RF PA: SKY77324-12 |
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29 | |||
30 | === NOR Flash === |
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31 | * Intel 28F160C3TD (16Mbits, i.e. 2 MByte) Advanced+ Boot Block Flash Memory (C3) |
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32 | * Data sheet will be in git |
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33 | |||
34 | === SRAM === |
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35 | * ESMT M24L2161128SA-70BE (128k x16, i.e. 256kByte) |
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36 | * Data sheet [http://www.esmt.com.tw/DB/manager/upload/M24L216128SA.pdf available from vendor] |
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37 | |||
38 | === Display === |
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39 | |||
40 | The display is a 96x64 pixels monochrome LCD, attached via I2C bus to the Calypso DBB chip. |
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41 | |||
42 | The LCD controller inside the display is a [http://www.sitronix.com.tw/sitronix/product.nsf/Doc/ST7558?OpenDocument Sitronix ST7558], |
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43 | for which the data sheet is available. There is a community-based |
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44 | [https://calypso.gnumonks.org/trac/browser/phone/motorola_compal/C115/example_project driver implemented in PIC16 assembly] (in our git repository. We need a proper |
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45 | C language driver for it (any volunteers?) |
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46 | 1 | laforge | |
47 | === Test Points === |
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48 | |||
49 | ==== Test points surrounding Iota ==== |
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50 | |||
51 | * TP4 -- BS_TDO, the JTAG TDO signal of the Iota (connected to TDI of Calypso) |
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52 | * TP5 -- Iota:TESTV pin |
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53 | * TP7 -- Uita:CK13M, connected from Calypso:CLK13M_OUT |
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54 | * TP29 -- Iota:ADIN1 (VADCID) |
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55 | * TP111 -- Iota:UDR (USP Rx), connects to Calypso:MCUDO |
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56 | * TP110 -- Iota:UEN (USP Enable), connects to Calypso:MCUEN0 |
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57 | * TP112 -- Iota:ONNOFF |
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58 | * TP114 -- Intoa:ITWAKEUP, connects to Calypso:RTC_ALARM |
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59 | * TP113 -- Iota:RESPWONZ, connects to Calypso:RTSPWRONZ |
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60 | * TP116 -- Iota:TEST3 |
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61 | * TP117 -- Iota:TEST4 |
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62 | |||
63 | ==== Test points surrounding Calypso ==== |
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64 | * TP11 -- Calypso:DSR_MODEM |
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65 | * TP12 -- Calypso:RTS_MODEM |
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66 | * TP23 -- Calypso:nCS4 |
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67 | * TP46 -- Calypso:CLK32K_OUT, connects to Iota:CK32K |
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68 | * TP118 -- Calypso:EXT_IRQ, connects to Iota:INT2 |
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69 | * TP115 -- Calypso:EXT_FIQ, connects to Iota:INT1 |
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70 | * TP45 -- Calypso:SCLK (I2C) |
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71 | * TP30 -- Calypso:nSCS1 (I2C) |
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72 | * TP44 -- Calypso:SDO (I2C) |
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73 | * TP34 -- Calyspo:nCS2 |
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74 | * TP48 -- Calypso:nCS3/INT4N |
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75 | * TP49 -- Calypso:VRDBB_1.5V |
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76 | * J2 -- Calypso NM_DAI_INTERFACE (MCSI_TXD, MCSI_CLK, MCSI_RXD, MCSI_RSYNCH, GND) |
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77 | |||
78 | ==== Test points accessible from battery compartment ==== |
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79 | 7 | laforge | [[Image(MotorolaC123:compal_testpads.png)]] |
80 | 1 | laforge | |
81 | 8 | laforge | On the C123 the following pads are usable |
82 | 1 | laforge | * TP27 -- DLPWR (download power on), connects to Iota:RPWON |
83 | * TP14 -- RxD Modem |
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84 | * TP13 -- TxD Modem |
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85 | * TP9 -- CTS Modem |
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86 | * TP39 -- GND |
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87 | 8 | laforge | |
88 | On most phones other pads are grounded and not usable (like in the scan above). |
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89 | Known exceptions |
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90 | * C115 and C117 have all test pads |
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91 | * C155 has JTAG but not IRDA UART test pads |
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92 | 5 | laforge | |
93 | 11 | vogelchr | === Charger Connector === |
94 | |||
95 | The charger connector is a barrel-type with 3mm diameter and a segmented shaft. The top ring is not connected, the lower ring is GND. The top pin supplies +5V to the phone. |
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96 | |||
97 | 12 | vogelchr | [[Image(MotorolaC123:c123_charger_connector.jpg, 33%)]] |
98 | 11 | vogelchr | |
99 | |||
100 | 5 | laforge | === PCB photographs === |
101 | 1 | laforge | |
102 | 6 | laforge | Available from [http://laforge.gnumonks.org/photoalbum/devices/motorola_compal/c123] |