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  1. SMART Technologies SMART Response(TM) XE Circuit Board Pads/Pinouts
  2. Document Version 2017-08-03T03:02Z
  3. Markings On Case - Model No: 03-00182, FCCID: QCISRP03, ID: 4302A-SRP03
  4. Markings On Board - 25-00188-20-A0
  5. =======================================================
  6.  
  7. -------------------------------------------------------
  8. Test Points (grouped, external access available through battery compartment)
  9. TCK top left if oriented with SW1 on top of board
  10. Layout: TCK TMS TDO TDI
  11. RST MISO
  12. SCK GND VCC MOSI
  13. TCK - ATmega128RFA1 pin 3 [PF4:ADC4:TCK]
  14. SCK - ATmega128RFA1 pin 37 [PB1:SCK:PCINT1]
  15. TMS - ATmega128RFA1 pin 4 [PF5:ADC5:TMS]
  16. GND - GND
  17. RST - ATmega128RFA1 pin 12 [RSTN]
  18. TDO - ATmega128RFA1 pin 5 [PF6:ADC6:TDO]
  19. VCC - VCC (3.3V)
  20. MISO - ATmega128RFA1 pin 39 [PB3:MISO:PDO:PCINT3]
  21. TDI - ATmega128RFA1 pin 6 [PF7:ADC7:TDI]
  22. MOSI - ATmega128RFA1 pin 38 [PB2:MOSI:PDI:PCINT2]
  23. -------------------------------------------------------
  24. Test Points (not in above group) SCL, SDA, CLK0
  25. SCL - ATMega128RFA1 pin 25 [PD0:SCL:INT0], U5 pin 6
  26. SDA - ATMega128RFA1 pin 26 [PD1:SDA:INT1], U5 pin 7
  27. CLK0 - ATmega128RFA1 pin 53 [PE7:ICP3:INT7:CLKO], R29 to Display pin 6
  28. -------------------------------------------------------
  29. ISP Pads
  30. Pin 1 top left if oriented with SW1 on top of board
  31. Layout: 1 2
  32. 3 4
  33. 5 6
  34. 1 - MISO, ATmega128RFA1 pin 39 [PB3:MISO:PDO:PCINT3]
  35. 2 - VCC (3.3V)
  36. 3 - SCK, ATmega128RFA1 pin 37 [PB1:SCK:PCINT1]
  37. 4 - MOSI, ATmega128RFA1 pin 38 [PB2:MOSI:PDI:PCINT2]
  38. 5 - RST, ATmega128RFA1 pin 12 [RSTN]
  39. 6 - GND
  40. -------------------------------------------------------
  41. JTAG Pads
  42. Pin 1 bottom left if oriented with SW1 on top of board
  43. Layout: 2 4 6 8 10
  44. 1 3 5 7 9
  45. 1 - TCK, ATmega128RFA1 pin 3 [PF4:ADC4:TCK]
  46. 2 - GND
  47. 3 - TDO, ATmega128RFA1 pin 5 [PF6:ADC6:TDO]
  48. 4 - VCC (3.3V)
  49. 5 - TMS, ATmega128RFA1 pin 4 [PF5:ADC5:TMS]
  50. 6 - RST, ATmega128RFA1 pin 12 [RSTN]
  51. 7 -
  52. 8 -
  53. 9 - TDI, ATmega128RFA1 pin 6 [PF7:ADC7:TDI]
  54. 10 - GND
  55. -------------------------------------------------------
  56. RS232 pads
  57. Pin 1 top left if oriented with SW1 on top of board
  58. Layout: 1 2
  59. 3 4
  60. 5 6
  61. 1 - U6 pin 13
  62. 2 - R36 to GND, U6 pin 1
  63. 3 - U6 pin 8
  64. 4 - R35 to VCC (3.3V)
  65. 5 - GND, RS232 pad 6
  66. 6 - GND, RS232 pad 5
  67. -------------------------------------------------------
  68. Keyboard
  69. Logical Layout (SK# are screen keys: top to bottom 1-5 on left, 6-10 on right):
  70. ROW1|ROW2|ROW3|ROW4|ROW5|ROW6|ROW7|ROW8|ROW9|ROW10
  71. COL1 1| 2| 3| 4| 5| 6| 7| 8| 9| 10
  72. COL2 Q| W| E| R| T| Y| U| I| O| P
  73. COL3 A| S| D| F| G| H| J| K| L| Bksp
  74. COL4 Shft| Z| X| C| V| B| N| M|Entr| Up
  75. COL5 Sym|Frac|Root| Exp| Spc| ,| .|Down|Left|Right
  76. COL6 SK1| SK2| SK3| SK4| SK5| SK6| SK7| SK8| SK9| SK10
  77.  
  78. COL1 - ATmega128RFA1 pin 26 [PD1:SDA:INT1], ATmega128RFA1 pin 52 [PE6:T3:INT6]
  79. COL2 - ATmega128RFA1 pin 43 [PB7:OC0A:OC1C:PCINT7]
  80. COL3 - ATmega128RFA1 pin 42 [PB6:OC1B:PCINT6]
  81. COL4 - ATmega128RFA1 pin 41 [PB5:OC1A:PCINT5]
  82. COL5 - ATmega128RFA1 pin 40 [PB4:OC2A:PCINT4]
  83. COL6 - ATmega128RFA1 pin 46 [PE0:RXD0:PCINT8], U6 (unpopulated) pin 9
  84. ROW1 - ATmega128RFA1 pin 50 [PE4:OC3B:INT4]
  85. ROW2 - ATmega128RFA1 pin 64 [PF1:ADC1]
  86. ROW3 - ATmega128RFA1 pin 2 [PF3:ADC3:DIG4]
  87. ROW4 - ATmega128RFA1 pin48 [PE2:XCK0:AIN0]
  88. ROW5 - ATmega128RFA1 pin 47 [PE1:TXD0], U6 (unpopulated) pin 11
  89. ROW6 - ATmega128RFA1 pin 32 [PD7:T0]
  90. ROW7 - ATmega128RFA1 pin 14 [PG0:DIG3]
  91. ROW8 - ATmega128RFA1 pin 19 [PG5:OC0B]
  92. ROW9 - ATmega128RFA1 pin 30 [PD5:XCK1]
  93. ROW10 - ATmega128RFA1 pin 29 [PD4:ICP1]
  94. -------------------------------------------------------
  95. Display (P3) marked "S028HN118A VER:A1" reportedly an ST7586S display chip driving a 384x160 LCD display
  96. Pin 1 on right if oriented with SW1 on top of board
  97. 1 - VPP pad
  98. 2 - ATmega128RFA1 pin 37 [PB1:SCK:PCINT1], ISP pad 3, Test Point SCK, U2 pin 6
  99. 3 - ATmega128RFA1 pin 38 [PB2:MOSI:PDI:PCINT2], ISP pad 4, Test Point MOSI, U2 pin 5
  100. 4 - R31 to ATmega128RFA1 pin 31 [PD6:T1]
  101. 5 - R30 to ATmega128RFA1 pin 16 [PG2:AMR]
  102. 6 - R29 to ATmega128RFA1 pin 53 [PE7:ICP3:INT7:CLKO], CLK0 pad
  103. 7 - EXT pad
  104. 8 - VCC
  105. 9 - C7 to C23 to Vin (6V)
  106. 10 - GND
  107. 11 - GND
  108. 12 - VCC
  109. 13 - C27 to C23 to Vin (6V)
  110. 14 - C6 to Display pin 15
  111. 15 - C6 to Display pin 14
  112. 16 - C28 to C23 to Vin (6V)
  113. -------------------------------------------------------
  114. SW1 (Power Switch), Normally Open
  115. Left and Right if oriented with SW1 on top of board
  116. L - GND
  117. R - ATmega128RFA1 pin 27 [PD2:RXD1:INT2], Z1 pin 1
  118. -------------------------------------------------------
  119. Speaker (unpopulated)
  120. Pin 1 top if oriented with SW1 on top of board)
  121. 1 - Speaker pin 2, Q1 (unpopulated) pin 2, R39 (unpopulated) to GND
  122. 2 - Speaker pin 1, Q1 (unpopulated) pin 2, R39 (unpopulated) to GND
  123. 3 - Speaker pin 4, R10 (unpopulated) to Q1 pin 1 + ATmega pin 49, R9 (unpopulated) to ?, C18 to GND
  124. 4 - Speaker pin 3, D1 (unpopulated) pin 3 (D1 pin 1 to GND)
  125. -------------------------------------------------------
  126. U1 (Marked "G4J") possible high-frequency (RF) SPDT switch uPG2214TB
  127. Pin 1 top right if oriented with SW1 on top of board
  128. 1 - C39 to ANT1 (GND when board unpowered)
  129. 2 - GND
  130. 3 - C16 to ANT2
  131. 4 - ATmega pin 15, C35 to GND
  132. 5 - unmarked Capactior (between U1 and C36) to C36 to GND - theoretically connected to ATMega pins 8 + 9 via a Balun, see ATmega datasheet section 9.8.3.2
  133. 6 - ATmega pin 1, unlabeled capacitor to GND
  134. -------------------------------------------------------
  135. U2 (Marked "ATMLH028 Z7H1164A") possible Two-Wire Serial EEPROM Atmel AT24C?
  136. Pin 1 top right if oriented with SW1 on top of board
  137. 1 - ATmega128RFA1 pin 28 [PD3:TXD1:INT3], CS_Flash pad
  138. 2 - ATmega128RFA1 pin 39 [PB3:MISO:PDO:PCINT3], ISP pad 1, Test Point MISO
  139. 3 - R17 to VCC (3.3V)
  140. 4 - GND
  141. 5 - ATmega128RFA1 pin 38 [PB2:MOSI:PDI:PCINT2], ISP pad 4, Test Point MOSI
  142. 6 - ATmega128RFA1 pin 37 [PB1:SCK:PCINT1], ISP pad 3, Test Point SCK
  143. 7 - R16 to C53 to GND
  144. 8 - VCC (3.3V)
  145. -------------------------------------------------------
  146. U4 (Marked "PHNI") 5-pin package, possible TPS62203DBV 3.3V DC-DC converter
  147. Pin 1 bottom left if oriented with SW1 on top of board
  148. Layout: 5 4
  149. 1 2 3
  150. 1 - Vin (battery pack +, 6VDC nominal)
  151. 2 - C23 to Vin (battery pack +, 6VDC nominal)
  152. 3 - Vin (battery pack +, 6VDC nominal)
  153. 4 - L3 to VCC (3.3V)
  154. 5 - VCC (3.3V)
  155. -------------------------------------------------------
  156. U5 10-pin package outline
  157. Pin 1 top left if oriented with SW1 on top of board
  158. 1 - GND
  159. 2 -
  160. 3 - R13 (unpopulated) to U5 pin 5 + atmega pin 51
  161. 4 - GND
  162. 5 - ATmega128RFA1 pin 51 [PE5:OC3C:INT5], R13 (unpopulated) to U5 pin 3
  163. 6 - ATMega128RFA1 pin 25 [PD0:SCL:INT0], SCL test point, R7 (4.7 KOhm) to VCC
  164. 7 - ATMega128RFA1 pin 26 [PD1:SDA:INT1], ATmega128RFA1 pin 52 [PE6:T3:INT6], SDA test point
  165. 8 - GND
  166. 9 - VCC (3.3V), C19 to GND
  167. 10 -
  168. -------------------------------------------------------
  169. U6 16-pin package outline (possibly intended to be a MAX3232 chip, but some pins are mixed up?)
  170. Pin 1 bottom right if oriented with SW1 on top of board
  171. 1 - R36 to GND, RS232 pad 2
  172. 2 - C33 to pin 4
  173. 3 - C41 to GND
  174. 4 - C33 to pin 2
  175. 5 - C42 to pin 6
  176. 6 - C42 to pin 5
  177. 7 - C43 to GND
  178. 8 - RS232 pad 3
  179. 9 - ATmega128RFA1 pin 46 [PE0:RXD0:PCINT8] *** Also used for Keyboard COL6
  180. 10 - not connected ?
  181. 11 - ATmega128RFA1 pin 47 [PE1:TXD0] *** Also used for Keyboard ROW5
  182. 12 - pin 16
  183. 13 - RS232 pad 1
  184. 14 - C30 to pin 15
  185. 15 - C30 to pin 14
  186. 16 - pin 12, R37 to VCC (3.3V)
  187. -------------------------------------------------------
  188. U3 ATmega128RFA1
  189. Pin 1 top right if oriented with SW1 on top of board
  190. 1 - [PF2:ADC2:DIG2] - U1 pin 6 (possible RF switch)
  191. 2 - [PF3:ADC3:DIG4] - Keyboard ROW3
  192. 3 - [PF4:ADC4:TCK] - JTAG Pad 1, Test Point TCK
  193. 4 - [PF5:ADC5:TMS] - JTAG Pad 5, Test Point TMS
  194. 5 - [PF6:ADC6:TDO] - JTAG Pad 3, Test Point TDO
  195. 6 - [PF7:ADC7:TDI] - JTAG Pad 9, Test Point TDI
  196. 7 - [AVSS_RFP] - GND
  197. 8 - [RFP] - theoretically connected to Balun to antenna switch, see ATmega datasheet section 9.8.3.2
  198. 9 - [RFN] - theoretically connected to Balun to antenna switch, see ATmega datasheet section 9.8.3.2
  199. 10 - [AVSS_RFN] - GND
  200. 11 - [TST] -
  201. 12 - [RSTN] - ISP Pad 5, JTAG Pad 6, Test Point RST
  202. 13 - [RSTON] -
  203. 14 - [PG0:DIG3] - Keyboard ROW7
  204. 15 - [PG1:DIG1] - U1 pin 4 (possible RF switch)
  205. 16 - [PG2:AMR] - Display pin 5
  206. 17 - [PG3:TOSC2] - Y2 (32.768KHz crystal)
  207. 18 - [PG4:TOSC1] - Y2 (32.768KHz crystal)
  208. 19 - [PG5:OC0B] - Keyboard ROW8
  209. 20 - [DVSS:DSVSS] - GND
  210. 21 - [DVDD] -
  211. 22 - [DVDD] -
  212. 23 - [DEVDD] - VCC (3.3V)
  213. 24 - [DVSS] - GND
  214. 25 - [PD0:SCL:INT0] - U5 (unpopulated) pin 6, Test Point SCL
  215. 26 - [PD1:SDA:INT1] - Keyboard COL1, U5 (unpopulated) pin 7, Test Point SDA *** Also pin 52
  216. 27 - [PD2:RXD1:INT2] - SW1 Right Side (SW1 NO, closes to GND)
  217. 28 - [PD3:TXD1:INT3] - U2 pin 1, CS_Flash
  218. 29 - [PD4:ICP1] - Keyboard ROW10
  219. 30 - [PD5:XCK1] - Keyboard ROW9
  220. 31 - [PD6:T1] - Display pin 4
  221. 32 - [PD7:T0] - Keyboard ROW6
  222. 33 - [CLKI] -
  223. 34 - [DEVDD] - VCC (3.3V)
  224. 35 - [DVSS] - GND
  225. 36 - [PB0:SSN:PCINT0] -
  226. 37 - [PB1:SCK:PCINT1] - Display pin 2, ISP Pad 3, U2 Pin 6, Test Point SCK
  227. 38 - [PB2:MOSI:PDI:PCINT2] - Display Pin 3, ISP Pad 4, U2 Pin 5, Test Point MOSI
  228. 39 - [PB3:MISO:PDO:PCINT3] - ISP Pad 1, U2 pin 2, Test Point MISO
  229. 40 - [PB4:OC2A:PCINT4] - Keyboard COL5
  230. 41 - [PB5:OC1A:PCINT5] - Keyboard COL4
  231. 42 - [PB6:OC1B:PCINT6] - Keyboard COL3
  232. 43 - [PB7:OC0A:OC1C:PCINT7] - Keyboard COL2
  233. 44 - [DEVDD] - VCC (3.3V)
  234. 45 - [DVSS] - GND
  235. 46 - [PE0:RXD0:PCINT8] - Keyboard COL6, U6 (unpopulated) pin 9
  236. 47 - [PE1:TXD0] - Keyboard ROW5, U6 (unpopulated) pin 11
  237. 48 - [PE2:XCK0:AIN0] - Keyboard ROW4
  238. 49 - [PE3:OC3A:AIN1] - Q1 pin 1 (unpopulated transistor to drive Speaker pins 1,2), R10 (unpopulated) to Speaker pins 3,4
  239. 50 - [PE4:OC3B:INT4] - Keyboard ROW1
  240. 51 - [PE5:OC3C:INT5] - U5 (unpopulated) pin 5
  241. 52 - [PE6:T3:INT6] - Keyboard COL1 *** Also pin 26
  242. 53 - [PE7:ICP3:INT7:CLKO] - Display pin 6, Test Point CLK0
  243. 54 - [DEVDD] - VCC (3.3V)
  244. 55 - [DVSS] - GND
  245. 56 - [XTAL2] - Y1 (marked T160 MSF9, 16MHz crystal?)
  246. 57 - [XTAL1] - Y1 (marked T160 MSF9, 16MHz crystal?)
  247. 58 - [AVSS:ASVSS] - GND
  248. 59 - [EVDD] - VCC (3.3V)
  249. 60 - [AVDD] -
  250. 61 - [AVSS] - GND
  251. 62 - [AREF] - C17 (disconnected) to GND
  252. 63 - [PF0:ADC0] - to Battery Voltage Divider (Vin - R4 (825 KOhm) - Pin63 - R5 (300 KOhm) - GND)
  253. 64 - [PF1:ADC1] - Keyboard ROW2
  254. -------------------------------------------------------
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