Acer Travelmate 7100 Service Guide
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1-28Service Guide3. CD-ROM Reset [pin-U13 of U21(PX3_CDRST#) of PIIX4]. The reset pin is used to assert
the hard reset needed for the CD-ROM during power up. The reset pin is asserted before
CD-ROM power up and is deasserted after CD-ROM power up and before the buffer is
enabled.
· Floppy
The floppy has two components involved in the process. The floppy drive and the controller
imbedded in the 87338 super I/O chip. The FDC enable/disabled function is controlled by
87338 chip. In power saving mode,...](http://img.usermanuals.tech/thumb/5/59850/w300_acer-travelmate-7100-service-guide-40.png "Page 41
1-28Service Guide3. CD-ROM Reset [pin-U13 of U21(PX3_CDRST#) of PIIX4]. The reset pin is used to assert
the hard reset needed for the CD-ROM during power up. The reset pin is asserted before
CD-ROM power up and is deasserted after CD-ROM power up and before the buffer is
enabled.
· Floppy
The floppy has two components involved in the process. The floppy drive and the controller
imbedded in the 87338 super I/O chip. The FDC enable/disabled function is controlled by
87338 chip. In power saving mode,...")
1-28Service Guide3. CD-ROM Reset [pin-U13 of U21(PX3_CDRST#) of PIIX4]. The reset pin is used to assert the hard reset needed for the CD-ROM during power up. The reset pin is asserted before CD-ROM power up and is deasserted after CD-ROM power up and before the buffer is enabled. · Floppy The floppy has two components involved in the process. The floppy drive and the controller imbedded in the 87338 super I/O chip. The FDC enable/disabled function is controlled by 87338 chip. In power saving mode,...
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System Introduction1-29Recovery from power down is the opposite procedure. · SIR (UART) The FIR port is basically UART2. The UART operates off of a 14MHz clock. The IR port has a DA converter. The UART2 disable control circuit is within the 87338 chip. 1. Tri-state the UART2 output pins. 2. Disable the 14MHz clock (If the floppy and the serial port are also disabled).If the 14MHz is disabled through the National power down mode, then all serial and floppy functions will fail. Recovery from power down...
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1-30Service Guide· · CPU
The CPU clock. The clock to the CPU can be physically stopped. The chip is static, so the
current state is retained. During a clock stop state, the CPU is stopped and the internal cache
and external bus signals are inoperative. Therefore, any bus master or DMA activity is halted
as well.
CPU thermal alarm. Thermal alarm is signaled by the assertion of the one control pin [pin4 of
U7(PT3_ATFZNT#) from MMO module], will trigger a lower speed operation through clock
throttling...](http://img.usermanuals.tech/thumb/5/59850/w300_acer-travelmate-7100-service-guide-42.png "Page 43
1-30Service Guide· · CPU
The CPU clock. The clock to the CPU can be physically stopped. The chip is static, so the
current state is retained. During a clock stop state, the CPU is stopped and the internal cache
and external bus signals are inoperative. Therefore, any bus master or DMA activity is halted
as well.
CPU thermal alarm. Thermal alarm is signaled by the assertion of the one control pin [pin4 of
U7(PT3_ATFZNT#) from MMO module], will trigger a lower speed operation through clock
throttling...")
1-30Service Guide· · CPU The CPU clock. The clock to the CPU can be physically stopped. The chip is static, so the current state is retained. During a clock stop state, the CPU is stopped and the internal cache and external bus signals are inoperative. Therefore, any bus master or DMA activity is halted as well. CPU thermal alarm. Thermal alarm is signaled by the assertion of the one control pin [pin4 of U7(PT3_ATFZNT#) from MMO module], will trigger a lower speed operation through clock throttling...
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System Introduction1-31For suspend-to-disk, all devices are read, saved to local memory and the local memory, video memory are saved to a disk file which is created by SLEEP MANAGER utility. The machine is then commanded to an off state. · Resume events for zero-volt suspend(suspend-to-disk) The only resume event for zero-volt suspend is the raising of the lid of the computer. This electronically enables the power to the rest of the machine. · Resume events for static suspend (suspend-to-memory)...
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1-32Service Guide1.6.9 BIOS Table 1-17BIOS SpecificationsItemSpecificationBIOS programming vendorAcerBIOS versionV3.0BIOS ROM typeIntel 28F002, Flash ROM with boot block protectionBIOS ROM size256KBBIOS ROM package type40-pin TSOPSame BIOS for TFT LCD typeYesBoot from CD-ROM featureYesSupport protocolPCI V2.1, APM V1.1, E-IDE and PnP(ESCD format) V1.0aBIOS flash security protectionProvide boot-block protection1 feature.Unlock BIOS featureIf user changes the BIOS Setup setting and causes the system...
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System Introduction1-331.6.10.1 SIMM Memory Combination List Table 1-19SIMM Memory Combination ListRAM SizeBank ABank B8MB8MB0MB8MB0MB8MB16MB8MB8MB16MB16MB0MB16MB0MB16MB24MB8MB16MB24MB16MB8MB32MB16MB16MB32MB32MB0MB32MB0MB32MB40MB8MB32MB40MB32MB8MB48MB16MB32MB48MB32MB16MB64MB32MB32MB64MB64MB0MB64MB0MB64MB72MB8MB64MB72MB64MB8MB82MB16MB64MB82MB64MB16MB96MB32MB64MB96MB64MB32MB128MB64MB64MB1.6.11 Video Memory Table 1-20Video Memory SpecificationItemSpecificationMemory size1.984MBMemory locationInside of...
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1-34Service Guide1.6.12 Video Display Modes Table 1-21Video Display SpecificationItemSpecificationChip vendorNeoMagicChip nameNMG2160Chip voltage3.3 VoltsZV port support (Y/N)YesGraph interface (ISA/VESA/PCI)PCI busMax. resolution (LCD)800x600 (16M colors) True ColorMax. resolution (Ext. CRT)1024x768 (64K colors) High Color1.6.12.1 External CRT Resolution Modes Table 1-22External CRT Resolution ModesResolution x Coloron Ext. CRTCRT Refresh RateSimultaneous onTFT LCDCRT...
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System Introduction1-351.6.13 Audio Table 1-24Audio SpecificationsItemSpecificationChipsetNeomagic-3097Audio onboard or optionalBuilt-inMono or stereostereoResolution16-bitCompatibilitySound Blaster Game, Windows Sound System, Plug&Play ISA 1.0aMusic synthesizer20-voice, 72 operator, FM music synthesizerMixed sound sourcesVoice, Synthesizer, Line-in, Microphone, CDVoice channel8-/16-bit, mono/stereoMPU1 -401 UART supportYesInternal microphoneYesInternal speakerYesInternal speaker enabled/disabled...
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1-36Service Guide1.6.15 Parallel Port Table 1-26Parallel Port SpecificationsItemSpecificationNumber of parallel ports1ECP/EPP supportYes (by BIOS Setup)ECP DMA channel (by BIOS Setup)DRQ1 or DRQ3Connector type25-pin D-typeConnector locationRear sideSelectable parallel port (by BIOS Setup)Parallel 1 (378h, IRQ7) or Parallel 2 (3BCh, IRQ7) or Parallel 3 (278h, IRQ5) or Disabled1.6.16 Serial Port Table 1-27Serial Port SpecificationsItemSpecificationNumber of serial ports116550 UART supportYesConnector...
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System Introduction1-371.6.18 SIR/FIR Table 1-29SIR/FIR SpecificationsItemSpecificationVendor & model nameIBM(31T1100A)Input power supply voltage5 VTransfer data rate115.2 Kbit/s(Max)(SIR)~4 Mbit/s(FIR)(Max)Transfer distance100cmCompatible standardIrDA (Infrared Data Association)Output data signal voltage level Active Non-active0.5 Vcc-0.5Angle of operation ±15°Number of IrDA ports116550 UART supportYesSIR locationRear sideSelectable serial port (by BIOS Setup)2F8h, IRQ3 or Disabled1.6.19 LCD Table...