? semiconductor 1/7 msm6650 eva board ? semiconductor msm6650 eva board msm6650 evaluation board board design board features q rom capacity switching jumpers 1m-bit and 4m-bit cmos type eproms can be used. for a 1m-bit eprom, set the three jumpers to the lower pins. for a 4m-bit eprom, set them to the upper pins. w eprom socket insert eproms fabricated by voice analysis, sequentially from the left. e , r xt/ cr selector switch and jumpers this switch selects rc oscillation or crystal oscillation. to operate the ic with rc oscillation, turn the dip switch to the lower side and set the two jumpers in e to the upper side. to operate the ic with crystal oscillation, turn the dip switch to the upper side and set the two jumpers in e to the lower side. rom rom rom rom 5 v gnd 5 v gnd off on power switch speaker jack msm6650 reset 20-pin connector, fc20a2ms by oki electric cable q
o
w
i
r
t
y
u
e
!4
!5
!7
!0
!6
!3
!2
!1
+ C power source e2d0066-27-40 this version: jan. 1998 previous version: may. 1997
? semiconductor 2/7 msm6650 eva board t standalone/microcontroller selector switch this switch selects the operation by a standalone mode or by a microcontroller interface mode. for a standalone mode, turn the dip switch to the lower side. for a microcontroller, turn the dip switch to the upper side. when a microcontroller is connected, all necessary signals are connected to the 20-pin connector. the connector pins are arranged as shown below. if a standalone computer is used, turn the siri switch y to the lower side. y serial input interface/parallel input interface selector switch when a microcontroller is used, this switch selects the serial inputs of addresses and command data or the parallel inputs of them. for the serial inputs, turn the switch to the upper side. for the parallel inputs, turn the switch to the lower side. u standby selector switch when the switch is turned to the lower side and the board is not activated toward the next phrase within 0.2 second after the voice is terminated, the board enters the standby state. (in the standby state, all the functions of the ic are stopped.) i busy /nar switching jumper when the jumper is turned to the upper side, the busy signal is output from the 20-pin connector. when the jumper is turned to the lower side, the nar signal is output from the 20-pin connector. when a standalone computer is used, set the jumper to the upper side. o amp/tr switching jumpers to amplify an analog signal which is output from aout, with transistors, set the two jumpers to the left side. to amplify it with an amplifier, turn the two jumpers to the right. !0 address specification switch when a standalone computer is used, select a word to be reproduced by this hex switch. 0 to 7 in this hex switch correspond to a0 to a2 in binary data. when a microcontroller is used, set the hex switch to 0. !1 lpf output pin this pin outputs a voice signal passed through the low path filter. when the da converter is selected by option, this pin works as the da converter pin. connector pin no. signal 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 dv dd nc ch reset st cmd busy /nar gnd connector pin no. signal i5 i6 dv dd dv dd nc i0 i1 i2 i3 i4 gnd gnd
? semiconductor 3/7 msm6650 eva board !2 frequency check pin (osc3) this pin monitors and checks the oscillation frequency. !3 variable resistor (vr2) for adjusting the frequency of rc oscillation. this variable resistor can change the frequency of rc oscillation. when the resistor is turned to the right, the frequency goes low. when the resistor is turned to the left, the frequency goes high. in this case, the frequency can be monitored by the osc3. !4 gnd pin !5 osc/gnd switching jumper set the jumper to the up side. !6 complete sw input interface when a standalone mode is used, press the 1 to f buttons to play voices corresponding to 1 to f of sw3 to sw0. press the lower left st button (random voice playback button) to play voices that are randomly selected from 31 types of phrases corresponding to a0 and sw3 to sw0. but, when the st switch is pressed while turning the power on or during the input of reset , firstly voice playback is made starting from the 1st phrase and beyond secondly it is made randomly. !7 speaker amplifier volume (vr1 shared by amp and tr) turn the volume switch to the right to increase the sound volume. turn the volume switch to the left to reduce the sound volume.
? semiconductor 4/7 msm6650 eva board circuit diagram msm6650 dv dd av dd v pp v cc pgmb v pp v cc pgmb v pp v cc pgmb v pp v cc pgmb d0 d1 d2 d3 d4 d5 d6 d7 d0 d1 d2 d3 d4 d5 d6 d7 d0 d1 d2 d3 d4 d5 d6 d7 d0 d1 d2 d3 d4 d5 d6 d7 d0 d1 d2 d3 d4 d5 d6 d7 13 14 15 17 18 19 20 21 13 14 15 17 18 19 20 21 13 14 15 17 18 19 20 21 13 14 15 17 18 19 20 21 32 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 12 11 10 9 8 7 6 5 27 26 23 25 4 28 29 3 2 30 31 12 11 10 9 8 7 6 5 27 26 23 25 4 28 29 3 2 30 31 12 11 10 9 8 7 6 5 27 26 23 25 4 28 29 3 2 30 31 12 11 10 9 8 7 6 5 27 26 23 25 4 28 29 3 2 30 31 a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 nc(v cc ) nc(a18) oeb gnd ceb oeb gnd ceb oeb gnd ceb oeb gnd ceb a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 a17 a18 a19 a20 a21 a22 a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 nc(v cc ) nc(a18) a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 nc(v cc ) nc(a18) a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15 a16 nc(a17) nc(a18) 132 132 132 132 8 9 ( pgm )( pgm )( pgm )( pgm ) 16 22 24 16 22 24 16 22 24 16 22 24 271000/(274000) 271000/(274000) 271000/(274000) 271000/(274000) v cc 16 14 13 2,3 115 g1b g2b 2a 2b y0 y1 y2 y3 12 11 10 9 74hc139 v cc ain stby vr din gnd sp sp msc1191 2 7 1 84 3 6 + C sp sp +5 v gnd power sw stanby roe aout 20 30 5 6 7 31 rcs dgnd agnd i0 i1 i2 i3 21 22 23 24 ch cmd 20 13 i4 i5 i6 25 26 27 cpu serial xt/ cr stby 16 17 15 64 reset st nar busy 29 14 4 3 osc3 osc2 osc1 12 11 10 1 5 10 15 20 i0 i1 i2 i3 i4 i5 i6 ch reset st cmd busy /nar fc1 fc20a2ms dv dd dec sw com 1 2 4 1 2 3 4 5 6 7 8 9 101112131415 271000 274000 0.1 m f 1 m f power 0.1 m f 0.1 m f 0.1 m f 0.1 m f 0.1 m f 0.1 m f 0.1 m f 5.1 k w
0.1 m f 220 m f 10d1 100 k w
200 k w
4.096 mhz 30 pf 30 pf 100 k w
100 k w
100 k w
100 k w
0.02 m f 10 w
100 k w
dv dd dv dd dv dd av dd dv dd dv dd dv dd dv dd dv dd dv dd dv dd av dd av dd av dd
? semiconductor 5/7 msm6650 eva board pattern layout silk screen
? semiconductor 6/7 msm6650 eva board mounting side
? semiconductor 7/7 msm6650 eva board solder side
|
