Toshiba DP120F, Service Manual

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DP120F/DP125F Circuit Description 7-54 March 2000 © TOSHIBA TEC
• DMAC GA Signal Table (1/7)
No. Signal Name Type Functions
1, 14, 28, 45, +5V - +5V
61, 91, 148,
159, 199,
217, 235
2, 31 RMCS1, 2X O Recovery ROM chip select signal (active-low)
Select signal for ROM on the Recovery ROM PBA.
4 RMCS3X O Flash ROM chip select signal (active-low)
Select signal for Flash ROM (IC13).
5 RMCS4X O Flash ROM chip select signal (active-low)
Select signal for Flash ROM (IC20).
6 RMCS5X O SRAM chip select signal (active-low)
Select signal for SRAM (IC30, IC31).
7 RMCS6X O Flash ROM chip select signal (active-low)
Select signal for Flash ROM (IC21).
8 IOCS6X O MODEM chip select signal (active-low)
Select signal for MODEM (IC5).
9 IOCS7X - Unused
10 IOCS8X O Line 2 MODEM chip select signal (active-low)
Select signal for MODEM (IC1) on the MODEM PBA.
11 IOCS9X O RTC chip select signal (active-low)
Select signal for RTC (IC23).
12, 21, 36, 49, SG - Signal ground
60, 72, 86, 96,
108, 120, 126,
136, 157, 168,
170-172, 180,
190, 208, 226,
240
13 CPUCK O CPU Operation clock (16MHz)
Operation clock for the CPU (IC66).
15 MRDHX O SRAM read signal (active-low)
Read signal for SRAM (IC31).
16 MRDLX O SRAM read signal (active-low)
Read signal for SRAM (IC30).
17 MRDX O Flash ROM read signal (active-low)
Read signal for Flash ROM (IC13, IC20) and ROM
on the Recovery ROM PBA.
I: Input O: Output I/O: Bidirectional