Specifications

D:\D\inter61a\INTERRUP.A Saturday, January 08, 2011 11:31 AM
BL = speed in MHz (12-99)
FFh default dot and memory clocks
Return: AL = 5Fh if function supported
AH = status
00h unsuccessful
01h successful
SeeAlso: AX=5F00h"Chips",AX=5F03h"64300",AX=5F02h"65530"
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INT 10 - Chips & Technologies '65530' BIOS - SET CLOCK
AX = 5F02h
BH = what to set
02h dot clock
BL = new clock speed (see #00180)
03h memory clock
BL = new clock speed (see #00180)
04h set power-down register
BL = new value for power-down register (bits 3-0 only)
06h (404 clock chip) set control register
BL = new vlaue for control register (bits 5-0 only)
06h (404A/B/B-ES clock chips) set control register PWRDN1
BL = new value for control register
07h (404A/B/B-ES clock chips) set control register PWRDN1
BL = new value for control register
FFh default dot and memory clocks
Return: AL = 5Fh if function supported
AH = status
00h unsuccessful
01h successful
SeeAlso: AX=5F01h,AX=5F02h"64300",AX=5FA0h,#00184
(Table 00180)
Values for C&T '65530' BIOS clock speed:
00h 12 MHz
01h 14 MHz
02h 16 MHz
03h 18 MHz
04h 20 MHz
05h 25 MHz
06h 28 MHz
07h 32 MHz
08h 36 MHz
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