Main Control Ic - Sony RDR-GX330 Service Manual

5-2. MAIN CONTROL IC (IC103: R8A34012BG (RD-060 BOARD))
Pin No. Pin Name
A1 AT1DATA[11]
A2 AT1DATA[12]
A3 AT1DATA[14]
A4 AT1DIOW
A5 AT1INTRQ
A6 HDREQ[0]
A7 HWS[0]
A8 HCS[1]
A9 HCS[4]
A10 HADRS[30]
A11 HADRS[26]
A12 HADRS[22]
A13 HADRS[21]
A14 HADRS[17]
A15 HADRS[13]
A16 HADRS[10]
A17 HADRS[7]
A18 MSDATA[0]
A19 MSDATA[3]
A20 SCLK[3]
A21 CTS[1]
A22 TX[2]
A23 RTS[1]
A24 RTS[0]
A25 DVDD
AA1 TRDATA[1]
AA2 TRDATA[3]
AA3 TRSYNC
AA4 EVENT[0]
AA5 VDD33
AA6 VRMA
AA7 VRMB
AA8 VSSDAD10
AA9 RREF1(REXT1)
AA10 REF2(REXT2)
AA11 VDD33
AA12 VDD
AA13 VSS
AA14 VDD
AA15 VSS
AA16 VDD33
AA17 VDD
AA18 DADRS[3]
AA19 DADRS[10]
AA20 VDD
AA21 DDATA[8]
AA22 VDD25
AA23 DDATA[10]
AA24 DDATA[3]
AA25 DDATA[4]
AB1 TRDATA[4]
AB2 TRDATA[7]
AB3 TRST
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I/O
— Input/output of data 11
— Input/output of data 12
— Input/output of data 14
O Output of write signal
I Input of IRQ
— Fixed at "L"
O Output of write strove signal 0
— Fixed at "H"
— Fixed at "H"
O Output of address 30
O Output of address 26
O Output of address 22
O Output of address 21
O Output of address 17
O Output of address 13
O Output of address 10
O Output of address 7
— Fixed at "L"
— Fixed at "L"
— Fixed at "H"
— Fixed at "H"
— UART(CSIO)/GPIO
— UART(CSIO)/GPIO
— UART(CSIO)/GPIO
Power supply input (Digital 1.0V)
O Not used
O Not used
O Not used
O Not used
— Power supply input (Digital 3.4V)
— Fixed at "L"
— Fixed at "L"
Analog GND
— Fixed at "L"
— Fixed at "L"
— Power supply input (Digital 3.4V)
— Power supply input (Digital 1.0V)
Digital GND
— Power supply input (Digital 1.0V)
Digital GND
— Power supply input (Digital 3.4V)
— Power supply input (Digital 1.0V)
O Output of address 3
O Output of address 10
— Power supply input (Digital 1.0V)
— Input/output of data 8
— Power supply input (Digital 2.5V)
— Input/output of data 10
— Input/output of data 3
— Input/output of data 4
O Not used
O Not used
I Not used
5-4
Function