MotorolaC123 » History » Version 19
laforge, 02/19/2016 10:49 PM
link to pcb page
1 | 19 | laforge | {{>toc}} |
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2 | 1 | laforge | |
3 | 19 | laforge | h1. Motorola C123 |
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6 | 1 | laforge | 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. |
7 | |||
8 | The internal name of the hardware is E88 |
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9 | |||
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11 | 19 | laforge | h2. Specifications |
12 | |||
13 | * GSM 900 / GSM 1800 dual-band |
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14 | * 101x45x21 mm, 86 grams |
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15 | * no GPRS |
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16 | * 920mAh Li-Ion battery |
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17 | * Ti Calypso/Iota/Rita chipset |
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18 | |||
19 | |||
20 | h2. Hardware |
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21 | |||
22 | 1 | laforge | [[Image(MotorolaC123:c123_pcb.jpg, right, 33%)]] |
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25 | 19 | laforge | h3. Schematics |
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28 | 1 | laforge | The schematics (part of the Level 3 Service Manual) can be found at various mobile phone related |
29 | websites, including http://www.uydudoktoru.com/dosyalar/gsmschema/20061016154029.rar |
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32 | 19 | laforge | h3. GSM Chipset |
33 | 1 | laforge | |
34 | |||
35 | 19 | laforge | * DBB: Ti Calypso Baseband, D751749ZHH model (Calypso Lite G2), includes 256kBytes of internal SRAM |
36 | * ABB: Ti TWL3025BZGR |
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37 | * RF: TRF6151C |
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38 | * RF PA: SKY77324-12 |
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39 | 1 | laforge | |
40 | |||
41 | 19 | laforge | h3. NOR Flash |
42 | |||
43 | * Intel 28F160C3TD (16Mbits, i.e. 2 MByte) Advanced+ Boot Block Flash Memory (C3) |
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44 | * Data sheet will be in git |
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45 | |||
46 | |||
47 | h3. SRAM |
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48 | |||
49 | * ESMT M24L2161128SA-70BE (128k x16, i.e. 256kByte) |
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50 | * Data sheet "available from vendor":http://www.esmt.com.tw/DB/manager/upload/M24L216128SA.pdf |
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51 | |||
52 | |||
53 | h3. Display |
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54 | |||
55 | |||
56 | 1 | laforge | The display is a 96x64 pixels monochrome LCD, attached via I2C bus to the Calypso DBB chip. |
57 | |||
58 | 19 | laforge | The LCD controller inside the display is a "Sitronix ST7558":http://www.sitronix.com.tw/sitronix/product.nsf/Doc/ST7558?OpenDocument, |
59 | 1 | laforge | for which the data sheet is available. There is a community-based |
60 | 19 | laforge | "driver implemented in PIC16 assembly":https://calypso.gnumonks.org/trac/browser/phone/motorola_compal/C115/example_project (in our git repository) |
61 | 1 | laforge | |
62 | |||
63 | 19 | laforge | h3. Test Points |
64 | 1 | laforge | |
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66 | |||
67 | 19 | laforge | h4. Test points surrounding Iota |
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69 | |||
70 | * TP4 -- BS_TDO, the JTAG TDO signal of the Iota (connected to TDI of Calypso) |
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71 | * TP5 -- Iota:TESTV pin |
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72 | * TP7 -- Uita:CK13M, connected from Calypso:CLK13M_OUT |
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73 | * TP29 -- Iota:ADIN1 (VADCID) |
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74 | * TP111 -- Iota:UDR (USP Rx), connects to Calypso:MCUDO |
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75 | * TP110 -- Iota:UEN (USP Enable), connects to Calypso:MCUEN0 |
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76 | * TP112 -- Iota:ONNOFF |
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77 | * TP114 -- Intoa:ITWAKEUP, connects to Calypso:RTC_ALARM |
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78 | * TP113 -- Iota:RESPWONZ, connects to Calypso:RTSPWRONZ |
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79 | * TP116 -- Iota:TEST3 |
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80 | * TP117 -- Iota:TEST4 |
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81 | |||
82 | |||
83 | h4. Test points surrounding Calypso |
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84 | |||
85 | * TP11 -- Calypso:DSR_MODEM |
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86 | * TP12 -- Calypso:RTS_MODEM |
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87 | * TP23 -- Calypso:nCS4 |
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88 | * TP46 -- Calypso:CLK32K_OUT, connects to Iota:CK32K |
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89 | * TP118 -- Calypso:EXT_IRQ, connects to Iota:INT2 |
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90 | * TP115 -- Calypso:EXT_FIQ, connects to Iota:INT1 |
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91 | * TP45 -- Calypso:SCLK (I2C) |
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92 | * TP30 -- Calypso:nSCS1 (I2C) |
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93 | * TP44 -- Calypso:SDO (I2C) |
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94 | * TP34 -- Calyspo:nCS2 |
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95 | * TP48 -- Calypso:nCS3/INT4N |
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96 | * TP49 -- Calypso:VRDBB_1.5V |
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97 | * J2 -- Calypso NM_DAI_INTERFACE (MCSI_TXD, MCSI_CLK, MCSI_RXD, MCSI_RSYNCH, GND) |
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98 | ** [[Image(MotorolaC123:mcsi_pinout.jpg, 20%)]] |
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99 | |||
100 | |||
101 | h4. Test points accessible from battery compartment |
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102 | |||
103 | 5 | laforge | [[Image(MotorolaC123:compal_testpads.png)]] |
104 | 11 | vogelchr | |
105 | On the C123 the following pads are usable |
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106 | 19 | laforge | * TP27 -- DLPWR (download power on), connects to Iota:RPWON |
107 | * TP14 -- RxD Modem |
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108 | * TP13 -- TxD Modem |
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109 | * TP9 -- CTS Modem |
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110 | * TP39 -- GND |
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111 | 12 | vogelchr | |
112 | 15 | steve-m | On most phones other pads are grounded and not usable (like in the scan above). |
113 | Known exceptions |
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114 | 19 | laforge | * C115 and C117 have all test pads |
115 | * C155 has JTAG but not IRDA UART test pads |
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116 | 1 | laforge | |
117 | 18 | laforge | |
118 | 19 | laforge | h3. Charger Connector |
119 | |||
120 | |||
121 | 1 | laforge | 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. |
122 | |||
123 | [[Image(MotorolaC123:c123_charger_connector.jpg, 33%)]] |
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124 | |||
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126 | 19 | laforge | h3. Antenna Connector |
127 | 1 | laforge | |
128 | |||
129 | 19 | laforge | The antenna connector is a "MS-147":http://www.hirose-connectors.com/connectors/H205SeriesGaiyou.aspx?c1=MS-147&c3=3. |
130 | 1 | laforge | |
131 | 19 | laforge | |
132 | h3. PCB photographs |
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133 | |||
134 | |||
135 | Available from "Pictures of each individual PCB layer can be found here: [http://www.steve-m.de/pictures/compal_e88/":http://laforge.gnumonks.org/photoalbum/devices/motorola_compal/c123] or at [[MotorolaC123PCB]] |