STC micro STC8A8K64D4 Series Reference Manual page 158

STC8A8K64D4 Series Manual
// IRCBAND = 0x02;
// CLKDIV = 0x00;
// // Select 35MHz
// P_SW2 = 0x80;
// CLKDIV = 0x04;
// IRTRIM = T35M_ADDR;
// VRTRIM = VRT44M_ADDR;
// IRCBAND = 0x03;
// CLKDIV = 0x00;
// // Select 40MHz
// P_SW2 = 0x80;
// CLKDIV = 0x04;
// IRTRIM = T40M_ADDR;
// VRTRIM = VRT44M_ADDR;
// IRCBAND = 0x03;
// CLKDIV = 0x00;
// // Select 45MHz
// P_SW2 = 0x80;
// CLKDIV = 0x04;
// IRTRIM = T45M_ADDR;
// VRTRIM = VRT44M_ADDR;
// IRCBAND = 0x03;
// CLKDIV = 0x00;
while (1);
}
Assembly code
;Operating frequency for test is 11.0592MHz
CPUIDBASE EQU
ID_ADDR EQU
VREF_ADDR EQU
F32K_ADDR EQU
T22M_ADDR EQU
T24M_ADDR EQU
T20M_ADDR EQU
T27M_ADDR EQU
T30M_ADDR EQU
T33M_ADDR EQU
T35M_ADDR EQU
T36M_ADDR EQU
T40M_ADDR EQU
T45M_ADDR EQU
VRT6M_ADDR EQU
VRT10M_ADDR EQU
VRT27M_ADDR EQU
VRT44M_ADDR EQU
P_SW2 DATA
CLKSEL EQU
CLKDIV EQU
IRCBAND DATA
IRCTRIM DATA
VRTRIM DATA
0FDE0H
CPUIDBASE + 00H
CPUIDBASE + 07H
CPUIDBASE + 09H
CPUIDBASE + 0BH
CPUIDBASE + 0CH
CPUIDBASE + 0DH
CPUIDBASE + 0EH
CPUIDBASE + 0FH
CPUIDBASE + 10H
CPUIDBASE + 11H
CPUIDBASE + 12H
CPUIDBASE + 13H
CPUIDBASE + 14H
CPUIDBASE + 15H
CPUIDBASE + 16H
CPUIDBASE + 17H
CPUIDBASE + 18H
0BAH
0FE00H
0FE01H
09DH
09FH
0A6H
;22.1184MHz
;24MHz
;20MHz
;27MHz
;30MHz
;33.1776MHz
;35MHz
;36.864MHz
;40MHz
;45MHz
;VRTRIM_6M
;VRTRIM_10M
;VRTRIM_27M
;VRTRIM_44M
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