Sharp UX-B20 Service Manual

UX-B20U/UX-B20C/B25C
5 – 5
SCE209L (IC5) Terminal descriptions
Pin
No.
Pin List I/O
Input
Type
Output
Type
Pin Description
63 PCLK/DMAACK O — 3XC —
64 VDD — — — Digital Power
65 GPIO[11]/BE/SERINP/SR4IN I/O Hu 13Xs —
66 GPIO[19]/RDY/SEROUT I/O Hu 13Xs —
67 START O — 2XC —
68 CLK1n/GPO[25] O — 13Xs —
69 CLK2/GPO[24] O — 13Xs —
70 GND — — — IA GND
71 MCLK ID — — Main Clock from DSP
72 CTRLI ID d — Control Data from DSP
73 TESTC ID d — IA Test
74 SOUT OD — T Serial Data to DSP
75 SIN ID d — Serial Data to DSP
76 FSYNC I/OD d — Frame Sync Signal (IA)
77 POR IA d — Hardware Reset
78 GND — — — IA GND
79 LINE_INP IA — — Analog Input to Line Pre-Amp.
80 MIC_INP IA — — Positive differential Analog Input to Microphone Pre-Amp.
81 MIC_INM IA — — Negative differential Analog Input to Microphone Pre-Amp.
82 MIC_BIAS OA — — 2.2 V Nominal DC Bias Source for Electret Microphone
83 BG OA — — Analog reference Voltage Output
84 VC OA — — Analog Ground Bias Output
85 AVDD PWR — — IA Analog Power
86 GND — — — IA GND
87 LINE_OUTP OA — — Line Driver Output
88 SPKR_OUTP OA — — Positive Speaker Driver Output
89 SPKR_OUTM OA — — Negative Speaker Driver Output
90 DVDD PWD — — IA Digital Power
91 MODE_0 ID u — Connect to VSS (IA Mode Selection)
92 ICLK I/OD — — IA Bit Clock Input/Output
93 VSS — — — VSS Digital GND
94 FCSn[1]/VIDCTL[0]/GPO[23] O — 13Xs —
95 IARESET O — 13Xs DSP to EXTIA POR
96 IACLK O — 13Xs DSP to EXTIA MCLK
97 VDD — — — Digital Power
98 IA1CLK I H — DSP from EXTIA ICLK
99 SR3IN/DSPIRQn I H — DSP from primary EXTIA SOUT/EXT. Modem IRQn
100 SR4OUT O — 13Xs DSP to primary EXTIA SIN
101 SR1IO O — 13Xs DSP to EXTIA CTRL1
102 SA1CLK I H — DSP from EXTIA FSYNC
103 GPIO[7]/SSRXD2/SASRXD2 I/O Hu 13Xs —
104 GPIO[6]/SSTXD2/SASTXD2 I/O Hu 13Xs —
105 GPIO[5]/SSCLK2/SASCLK2 I/O Hu 13Xs —
106 GPIO[10]/SSSTAT2/DSS_AVAIL I/O Hu 13Xs —
107 VSS — — — Digital GND
108 RESETn I/O Hu 2XC —
109 GPIO[3]/SASCLK I/O Hu 13Xs —
110 GPIO[2]/SASRXD I/O Hu 13Xs —
111 GPIO[1]/SASTXD I/O Hu 13Xs —
112 GPIO[9]/FRDn I/O Hu 13Xs —
113 GPIO[8]/FWRn I/O Hu 13Xs —
114 A[0] I/O Tu 13Xs CPU Address Bus
115 A[1] I/O Tu 13Xs CPU Address Bus
116 A[2] I/O Tu 13Xs CPU Address Bus
117 A[3] I/O Tu 13Xs CPU Address Bus
118 A[4] I/O Tu 13Xs CPU Address Bus
119 VDD — — — Digital power
120 A[5] I/O Tu 13Xs CPU Address Bus
121 A[6] I/O Tu 13Xs CPU Address Bus
122 A[7] I/O Tu 13Xs CPU Address Bus
123 A[8] I/O Tu 13Xs CPU Address Bus
124 A[9] I/O Tu 13Xs CPU Address Bus

Sharp UX-B20 Specifications

General

Brand	Sharp
Model	UX-B20
Category	Fax Machine
Language	English