Maxon MX7931 Service Manual
MX-7930/31/32
MX-7930/31/32 Technical Manual
Section 9 – IC information
Issue 1
Contents
Contents..................................................................................................................................1
1. Pinout for IC1.............................................................................................................2
2. Pinout for IC 2 ............................................................................................................3
3. Pinout for IC 3 ............................................................................................................4
4. Pinout for D1 / D3......................................................................................................5
5. Pinout for IC 101........................................................................................................6
6. Pinout for IC 102.....................................................................................................10
7. Pinout for IC 111.....................................................................................................12
8. Pinout for IC 112.....................................................................................................14
9. Pinout for IC 151.....................................................................................................16
10. Pinout for IC 153.....................................................................................................18
11. Pinout for IC 300.....................................................................................................19
12. Pinout for IC 301.....................................................................................................21
13. Pinout for IC 330.....................................................................................................22
14. Pinout for IC 401.....................................................................................................23
15. Pinout for OSC 300................................................................................................24
16. Pinout for PA 400...................................................................................................25
17. Pinout for SW 400..................................................................................................26
18. Pinout for VCO 300................................................................................................27
19. Pinout for VCO 400................................................................................................28
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1. Pin out for IC1
MX-7930/31/32
(Top View)
25
26
32
1
17
16
10
9
PIN NO FUNCTION NAME
1 Clock input CLKI
2 External device control terminal 1 EXT1
3 Interrupt output /I RQ
4 Hardware reset input /RST
5 CPU IF select: L serial, H parallel IFSEL
6 PLL capacitor connection PLLC
7 Digital power supply VDD
8 Ground VSS
9 Analog reference voltage VREF
10 Headphone left channel out HPOUT-L
11 Headphone right channel out HPOUT-R
12 Equalizer terminal 1 EQ1
13 Equalizer terminal 2 EQ2
14 Equalizer terminal 3 EQ3
15 Analog power supply SPVDD
16 Analog ground SPVSS
17 Speaker terminal 1 SPOUT1
18 Speaker terminal 2 SPOUT2
19 External device control terminal 2 EXT2
20 Data bus bit D7 D7
21 Data bus bit D6 D6
22 Data bus bit D5 D5
23 Data bus bit D4 D4
24 Data bus bit D3 D3
25 Data bus bit D2 D2
26 Data bus bit D1 D1
27 Data bus bit D0 D0
28 Parallel IF write pulse /WR
29 Serial IF Data in / Parallel IF chip se lect input SDIN/CS
30 Serial IF sync. Signal / Parallel IF address select Sync/A0
31 Serial IF clk input / parallel IF read strobe SCLK/RD
32 Serial IF Data out SDOUT
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2. Pin out for IC 2
(Top View)
4
MX-7930/31/32
1
5 8
PIN NO FUNCTION NAME
1 Compensation pin COMP
2
3 Overvoltage sense OUT
4 Inductor connection LX
5 Power ground PGND
6 Ground GND
7 Current-sense feedback input CS
8 Supply voltage input V+
Brightness/Shutdown dual-mode control input
CTRL
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3. Pin out for IC 3
MX-7930/31/32
(Top thru View)
3
4 6
1
PIN NO FUNCTION NAME
1 Decoder address/Demultiplexer select A
2
3
4 Output 1 Y1
5 Power supply VCC
6 Output O YO
Ground
Decoder output enable/Demultiplexer data
GND
/E
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MX-7930/31/32
4. Pin out for D1 / D3
(Top thru View)
D A
1
5
PIN NO FUNCTION NAME
A1 Input 2 IN2
A2 Input 3 IN3
A3 Input 4 IN4
A4 Input 5 IN5
A5 Input 6 IN6
B1 Input 1 IN1
B2 Ground GND1
B3 Ground GND2
B4 Ground GND3
B5 Input 7 IN7
C1 Output 1 OUT1
C2 Ground GND4
C3 Ground GND5
C4 Ground GND6
C5 Output 7 OUT7
D1 Output 2 OUT2
D2 Output 3 OUT3
D3 Output 4 OUT4
D4 Output 5 OUT5
D5 Output 6 OUT6
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MX-7930/31/32
5. Pin out for IC 101
(Bottom View)
114
A
P
PIN NO FUNCTION NAME
A1 ARSM GPO05/ARSM
A2 Real time clock power supply V_RTC VDDRTC
A3 32 kHz oscillator input OSCIN OSCIN
A4 Keypad column output KEY_COL_3 KEYPADCOL3
A5 Keypad row input KEY_ROW_4 KEYPADROW4
A6 Keypad row input KEY_ROW_0 KEYPADROW0
A7 EL backlight enable LIGHT_EN GPO22/BKLT0
A8 Display register select line DISP_A0 GPIO15/DISPA0
A9 “Dallas” serial battery ID interface
ID_BATT
A10 Detection of external accessories
ACC_DET
A11 Charger status input CHG_STAT GPIO06
A12 GND GND09
A13 USC3 USC3
A14 USC2 USC2
B1 RXON GPO00/RXON
B2 PWR_HOLD PWRON
B3 32 kHz oscillator output OSCOUT OSCOUT
B4 Keypad column output KEY_COL_2 KEYPADCOL2
B5 Keypad row input KEY_ROW_3 KEYPADROW3
B6 GND GND11
B7 Display data line DISP_DATA GPIO17/DISPD0
B8 Display clock line DISP_CLK GPIO14/DISPCLK
B9 Service LED control SIG_IND_2 GPIO12/BKLT2
B10 V_DIG_IF VEXT2
B11 Flip status input FLIPSTATE GPI O05
B12 Vibrator enable output VIB_EN GPIO02/BUZZER1
B13 USC6 USC6
B14 V_DIG_IF VEXT1
C1 ATSM GPO06/ATSM
C2 TXON GPO01/TXON
C3 Keypad column output KEY_COL_4 KEYPADCOL4
GPIO13/BATID
GPIO09
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MX-7930/31/32
C4 Keypad column output KEY_COL_0 KEYPADCOL0
C5 Service LED control SIG_IND_1 GPO23/BKLT1
C6 V_DIG_IF VEXT3
C7 EXT_PWR_EN GPIO11
C8 V_CORE VCC4
C9 I2C_DATA GPIO10
C10 USC3 GPIO07
C11 Debug UART output GSPB-TX GPIO03
C12 USC5 USC5
C13 GND GND08
C14 USC0 USC0
D1 CODEC clock VBCCLK CLKOUT
D2 CODEC clock output VBCCLKEN CLKOUTGATE
D3 GND VSSRTC
D4 Keypad row input KEY_ROW_2 KEYPADROW2
D5 V_DIG_IF VEXT4
D6 Display chip select /DISP_CS GPIO16/DISPEN
D7 GND GND10
D8 PWM controlled buzzer output BUZZER GPIO08/BUZZER2
D9 Charger detected CHG_DET GPIO04
D10 GSPB-RX GPIO01
D11 USC4 GPIO00
D12 USC1 USC1
D13 RF_DATA GPO20/SYNDATA
D14 IRDA_EN/MODE GPO19
E1 CODEC reset COD_RESET GPO24/VBCRESET
E2 ASDI ASDI
E3 V_CORE VPEG1
E4 Keypad column output KEY_COL_1 KEYPADCOL1
E11 USC4 USC4
E12 RF_EN GPO18/SYNTHEN
E13 (RESERVED) GPO16
E14 _TX_ON GPO11
F1 ASDO ASDO
F2 ASFS ASFS
F3 BSDO BSDO
F4 Keypad row input KEY_ROW_1 KEYPADROW1
F11 RF_CLK GPO21/SYNTHCLK
F12 TX_RX_SW_2 GPO10
F13 PLL_ON GPO08
F14 I2C_CLK GPO07
G1 BSIFS BSIFS
G2 BSDI BSDI
G3 VSDI VSDI
G4 BSOFS BSOFS
G11 Charger mode CHG_MODE GPO17
G12 MAINVCO_EN GPO03
G13 TX_VCO_EN GPO02
G14 13MHZ_EN CLKON
H1 V_CORE VCC1
H2 VSFS VSFS
H3 VSDO VSDO
H4 Address ADD00
Technical Manual
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Page 9. 7
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MX-7930/31/32
RD
H11 TX_RX_SW_1 GPO09
H12 _RF_POWER GPO04
H13 JTAG1 GPIO19/TMS
H14 JTAG0 GPIO18/TCK
J1 GND GND01
J2 Address ADD02
J3 Address ADD01
J4 Address ADD03
J11 JTAG3 GPIO21/TDO
J12 JTAG2 GPIO20/TDI
J13 I/O_SIM SIMDATAOP
J14 SIM card operating voltage select
SIM_2_SEL
K1 GND GND02
K2 Address ADD05
K3 Address ADD04
K4 Address ADD06
K11 JTAG5 JTAGEN
K12 CLK_SIM SIMCLK
K13 SIM card operating voltage select
SIM_1_SEL
K14 V_CORE VCC3
L1 Address ADD08
L2 V_MEM VMEM1
L3 Address ADD09
L4 Address ADD07
L5 Address ADD10
L6 GND GND04
L7 Data input/output DATA05
L8 GND GND05
L9 V_DIG_IF VSIM
L10 Reset line for the SIM card RESET_SIM GPIO23/SIMRST
L11 GND GND07
L12 System clock input 13M_CLK CLKIN
L13 General purpose chip select /GPCS1
L14 Detection of inserted headset
HEADSET_DET
M1 Address ADD11
M2 Address ADD12
M3 Address ADD18
M4 Address ADD21
M5 Display reset _DISP_RES
M6 Data input/output DATA02
M7 Data input/output DATA04
M8 Data input/output DATA08
M9 Data input/output DATA10
M10 Data input/output DATA13
M11
M12
M13
M14
Read st robe RD
General purpose chip select GPCS0 GPCS0
ROM chip select ROMCS ROMCS
RAM chip select RAMCS RAMCS
SIMPROG
SIMSUPP
GPCS1
GPI032
DISPCS
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MX-7930/31/32
N1 Address ADD13
N2 Address ADD15
N3 Address ADD17
N4 Address ADD20
N5 V_MEM VMEM2
N6 Data input/output DATA00
N7 Data input/output DATA03
N8 Data input/output DATA07
N9 V_MEM VMEM3
N10 Data input/output DATA12
N11 Data input/output DATA15
N12
N13 V_MEM VMEM4
N14
P1 Address ADD14
P2 Address ADD16
P3 GND GND03
P4 Address ADD19
P5 Address ADD22
P6 Data input/output DATA01
P7 V_CORE VCC2
P8 Data input/output DATA06
P9 Data input/output DATA09
P10 Data input/output DATA11
P11 Data input/output DATA14
P12 GND GND06
P13
P14
Upper byte strobeUBS
System reset input SYS_RESET
Lower byte strobeLBS
Write enableWE WE
HWR /UBS
RESET
LWR /LBS
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