110502
PRODUCT MANUAL EPX-C380
79
Boot Block
Code
Description
80h
TP_BB_CS_INIT - Chipset Init
81h
TP_BB_BRIDGE_INIT - Bridge Init
82h
TP_BB_CPU_UNIT - CPU Init
83h
TP_BB_TIMER_INIT - System timer Init
84h
TP_BB_IO_INIT - System I/O Init
85h
TP_BB_FORCE - Check force recovery boot
86h
TP_BB_CHKSUM - Check BIOS Checksum
87H
TP_BB_GOTOBIOS - Go to BIOS
88h
TP_BB_MP_INIT - Init Multi Processor
89h
TP_BB_SET_HUGE - Set Huge Seg
8Ah
TP_BB_OEM_INIT - OEM Special Init
8Bh
TP_BB_HW_INIT - Init PIC and DMA
8Ch
TP_BB_MEM_TYPE - Init Memory Type
8Dh
TP_BB_MEM_SIZE - Init Memory Size
8Eh
TP_BB_SHADOW - Shadow Boot Block
8Fh
TP_BB_SMM_INIT - Init SMM
90h
TP_BB_RAMTEST - System Memory Test
91h
TP_BB_VECS_INIT - Init Interrupt Vectors
92h
TP_BB_RTC_INIT - Init RTC
93h
TP_BB_VIDEO_INIT - Init Video
94h
TP_BB_OUT_INIT - Init Beeper
95h
TP_BB_BOOT_INIT - Init Boot
96h
TP_BB_CLEAR_HUGE - Clear Huge Seg
97h
TP_BB_BOOT_OS - Boot to OS
98h
TP_BB_USB_INIT - Intialize the USB Controller
99h
TP_BB_SECUR_INIT - Init Security
*
If the BIOS detects error 2C, 2E, or 30 (base 512 KB RAM error), it displays an additional word-bitmap (
xxxx
)
indicating the address line or bits that failed.
For example, “2C 0002” means address line 1 (bit one set) has failed. “2E 1020” means data bits 12 and 5 (bits 12 and
5 set) have failed in the lower 16 bits. Note that error 30 cannot occur on 386SX systems because they have a 16 rather
than 32-bit bus. The BIOS also sends the bitmap to the port-80h LED display. It first displays the checkpoint code,
followed by a delay, the high-order byte, another delay, and then the low-order byte of the error. It repeats this sequence
continuously.
Preliminary
