Toshiba DP120F, Service Manual

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DP120F/DP125F Circuit Description 7-58 March 2000 © TOSHIBA TEC
• DMAC GA Signal Table (5/7)
No. Signal Name Type Functions
84 EXTINT1 - Signal ground
85, 178 ROMSELX I Recovery ROM connect signal (active-low)
Checks the connection state of the Recovery ROM
PBA.
87 IOCS0X O DSC chip select signal (active-low)
Select signal for DSC (IC59).
88 IOCS1X O CODEC chip select signal (active-low)
Select signal for CODEC (IC51).
89 IOCS2X O Panel chip select signal (active-low)
Select signal for Operation panel PBA.
90 IOCS3X O IOP-1 GA chip select signal (active-low)
Select signal for IOP-1 GA (IC7).
92 IOCS4X O NIC chip select signal (active-low)
Select signal for GF-1010.
93 IOCS5X O IOP-2 GA chip select signal (active-low)
Select signal for IOP-2 GA (IC48).
94 IOCS10X O EET chip select signal (active-low)
Select signal for EET(IC39).
95 IOCS11X O PTC GA chip select signal (active-low)
Select signal for PTC GA (IC45).
97-101, PDA0-9 O PIX-Address bus
103-107
109 PRAS0 O RAS signal for PIX-DRAM (active-low)
RAS signal for PIX-DRAM (IC25).
111, 112 PRAS2, 3 O PIX-Address bus
114, 115 PCAS0L, H O CAS signal for PIX-DRAM (active-low)
CAS signal for PIX-DRAM.
116, 117 PCAS1L, H - Unused
118 POEX O Read signal for PIX-DRAM (active-low)
Reads data from PIX-DRAM.
119 PWEX O Write signal for PIX-DRAM (active-low)
Writes data from PIX-DRAM.
122-125, PXD0-15 I/O PIX-Data bus
127-130,
132-135,
137-140
I: Input O: Output I/O: Bidirectional