2.4 System Board Troubleshooting | 2 Troubleshooting Procedures | |
| Table | Debugging port status (6/7) |
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D port |
| Contents |
status |
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F10Ah | Raises the task waiting for the completion of PCI_configuration. | |
| Initializes H/W necessary after PCI configuration. | |
| Enables power off. |
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| Generates out put code. | |
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F10Bh | FIRST_64KB_CHECK (Memory checks of first 64KB) | |
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F10Ch | INIT_INT_VECTOR (Initialization of vector) | |
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F10Dh | INIT_NDP(Initialization of NDP) | |
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F10Eh | INIT_SYSTEM (Initialization of system) | |
| Stores CMOS error status into IRT_ERR_STS_BUF. | |
| Starts initializing of TIMER. | |
| Initializes buffer for power save. | |
| Initializes EC and reads battery information. | |
| Renews system BIOS. (Renews model name, EDID information for LCD.) | |
F10Fh | INIT_Display (Waiting for completion of initializing VGA chip and initializing | |
| BIOS) |
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F110h | DISP_LOGO (Display of LOGO) | |
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F111h | SYS_MEM_CHECK (Memory check of conventional memory) | |
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F112h | EXT_MEM_CHECK (Exception check in protect mode) | |
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F114h | Initializes conventional memory. | |
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F115h | CHK_DMA_PAGE(Check of DMA Page Register) | |
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F116h | CHECK_DMAC(Check of DMAC) | |
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F117h | INIT_DMAC (Initialization of DMA) | |
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F118h | BOOT_PASSWORD (Password check) | |
| Waits for completion of initializing HDD | |
| Checks key input during IRT. (waits here the completion of KBC | |
| initialization.) |
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| Initializes ATA priority. | |
| Clears security buffer. | |
F11Bh | EX_IO_ROM_CHECK (Check of optional I/O ROM) | |
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F11Ch | PRE_BOOT_SETUP |
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| Stores the value of 40:00h.(for saving/restoring SIO) | |
| Sets font address for resume password. | |
| Sets the repeat parameter to USB KB. | |
| Gets the key information pressed during IRT. | |
| Stores T_SHADOW_RAM_SIZE. | |
PORTEGE A200 Maintenance Manual (960 |
