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HOLTEK HT85F2280 8051 MCU Manuals
Manuals and User Guides for HOLTEK HT85F2280 8051 MCU. We have
1
HOLTEK HT85F2280 8051 MCU manual available for free PDF download: Manual
HOLTEK HT85F2280 Manual (225 pages)
Standard 8051 8-Bit Flash MCU
Brand:
HOLTEK
| Category:
Microcontrollers
| Size: 3 MB
Table of Contents
Standard 8051 8-Bit Flash Mcu Ht85F2260 Ht85F2270 Ht85F2280
2
Table of Contents
2
List of Tables
8
Table of Contents
13
1 Features
14
CPU Feat
14
2 General Description
16
3 Selection Table
17
4 Block Diagram
18
5 Pin Assignment
19
Gene�Al P��Pose I/O. Registe� Selected I/O Mode and Wake-�P
20
6 Pin Descriptions
20
Compa�Ato� 0
22
Compa�Ato� 1
22
7 Absolute Maximum Ratings
23
8 C. Characteristics
23
10 ADC Electrical Characteristics
26
11 DAC Electrical Characteristics
26
12 Comparator Electrical Characteristics
27
13 Power on Reset Electrical Characteristics
28
14 System Architecture
28
15 Program Counter
29
16 Stack
29
17 Arithmetic and Logic Unit - ALU
30
18 Flash Program Memory
31
Special Vecto�S
31
On-Chip Deb�G S�Ppo�T - OCDS
32
Flash Memo�� Is in
37
Unlocking the Flash Memo
37
Page E�Ase Ope�Ation
38
Memo
42
19 RAM Data Memory
46
Bit Add�Essable Space
47
Special F�Nction Registe�S
47
B Registe
53
SP Registe� - Stack Pointe
53
Data Pointe� Select Registe
54
Data Pointe� Cont�Ol Registe
54
20 Oscillators
57
System Clock Configuration
57
Exte�Nal High Speed C��Stal
57
Exte�Nal Low Speed C��Stal
57
21 Operating Modes and System Clocks
60
S�Stem Clocks Desc�Iption
60
Phase Locked Loop - PLL
64
Changing the PLL F�Eq�Enc
64
NORMAL Mode
66
IDLE Mode
66
22 Watchdog Timer
69
IEN0 Registe
70
IEN1 Registe
71
WDTREL Registe
71
IP0 Registe
72
WDTCR Registe
72
23 Low Voltage Detector - LVD
75
LVD Registe
75
LVD Ope�Ation
75
LVDCR Registe
75
24 Reset and Initialisation
76
Reset Ove�View
76
Reset so
76
Powe�-On Reset
76
RSTSRC Registe
77
RESET Pin Reset
79
Low Voltage Reset - LVR
80
LVRCR Registe
80
Watchdog Reset
81
Compa�Ato� 0 Reset
82
SRST Registe� Softwa�E Reset
83
SRST Registe
83
LVRCR Registe
84
ROM Code Check Reset
85
Reset Initial Conditions
85
WDTCR Registe
84
25 Interrupts
91
Inte
92
IEN3 Registe
94
IRCON Registe
95
S0CON Registe
97
S1CON Registe
98
TCON Registe
99
T3CON Registe
100
SPSTA Registe
101
CPICR Registe
102
Inte
104
Time� 1
104
Inte
107
Exte�Nal Inte
107
Compa�Ato� Inte
107
TBCR Registe
114
P0 Registe
118
P1 Registe
118
P3 Registe
119
P4 Registe
119
P0M0 Registe
120
P0M1 Registe
120
P1M0 Registe
120
P1M1 Registe
120
P3M0 Registe
121
P3M1 Registe
121
P0WAKE Registe
122
SRCR Registe
122
Time
128
TL0 Registe
128
TH0 Registe
129
TL1 Registe
129
TH1 Registe
130
TL3 Registe
130
TH3 Registe
131
TMOD Registe
131
TMPRE Registe
134
CCEN Registe
142
Sec
142
A/D Data Registe
153
ADCR0 Registe
154
ADCR1 Registe
155
ADPGA Registe
157
DACTRL Registe
163
DAH Registe
163
DAL Registe
163
CP0CR Registe
171
CP1CR Registe
172
CPHCR Registe
173
SPI Slave Mode Timing - CPHA=0
195
SPI Slave Mode Timing - CPHA=1
195
UART 0 Block Diag
199
UART0 Mode 0 Timing Diag
204
UART0 Mode 1 Timing Diag
205
UART0 Mode 3 Timing Diag
207
UART1 Block Diag
209
UART1 Mode a Timing Diag
213
UART1 Mode B Timing Diag
214
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