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King Billion Electronics Co., Ltd
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億
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HE83R125
HE80000 Series
7.
LCD RAM map
March 13, 2003
This specification is subject to change without notice. Please contact sales person for the latest version before use.
8
V1.0E
SEG[39..32] SEG[31..24] SEG[23..16]
F8H
F0H
F9H
F1H
FAH
F2H
FBH
F3H
FCH
F4H
FDH
F5H
FEH
F6H
FFH
F7H
SEG[15..8]
E0H
E1H
E2H
E3H
E4H
E5H
E6H
E7H
SEG[7..0]
D8H
D9H
DAH
DBH
DCH
DDH
DEH
DFH
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
E8H
E9H
EAH
EBH
ECH
EDH
EEH
EFH
8.
Oscillators
The MCU is equipped with two clock sources with a variety of selections on the types of oscillators to
choose from. So that system designer can select oscillator types based on the cost target, timing accuracy
requirements etc. With two clock sources available, the system can switch among operation modes of
normal, slow, idle, and sleep modes by the setting of OP1 and OP2 registers as shown in tables below to
suit the needs of application such as power saving, etc.
OP1
Field
Mode
Reset
Bit 7
1
R
1
Bit 6
STOP
R/W
0
Bit 5
SLOW
R/W
0
Bit 4
INTE
R/W
0
Bit 3
T2E
R/W
0
Bit 2
T1E
R/W
0
Bit 1
Z
R/W
-
Bit 0
C
R/W
-
OP2
Field
Mode
Reset
Bit 7
IDLE
R/W
0
Bit 6
PNWK TCWK
R/W
-
Bit 5
Bit 4
-
-
0
Bit 3
-
-
-
Bit 2
-
-
-
Bit 1
-
-
-
Bit 0
-
-
-
R/W
-
Crystal, Resonator or the RC oscillator or internal RC can be used as fast clock source. If the internal RC
oscillator is used, then no external component is necessary. Please note that oscillation frequency of
internal RC oscillator may vary with parameters of IC fabrication process. Therefore if timing accuracy is
essential in targeted applications, then internal RC is not recommended.
Name
MO_FOSCE
MO_FRCI_S[2:0] 000 RFRC_I ~= 500k
001 RFRC_I ~= 1M
010 RFRC_I ~= 1.5M
011 RFRC_I ~= 2M
100 RFRC_I ~= 2.5M
Value Function
0
Internal fast OSC
1
External fast OSC