STC12C5404-35I-LQFP32 datasheet, PDF

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STC12C5404-35I-LQFP32: DescriptionMicrocontroller, FLASH, 35MHz, CMOS, PQFP32, 9 X 9 MM, 1.60 MM HEIGHT, GREEN, LQFP-32; CategoryThe embedded processor and controller Microcontrollers and processors; File Size3MB，376 Pages; ManufacturerSTC International Ltd.; Environmental Compliance

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STC12C5404-35I-LQFP32 Overview

Microcontroller, FLASH, 35MHz, CMOS, PQFP32, 9 X 9 MM, 1.60 MM HEIGHT, GREEN, LQFP-32

STC12C5404-35I-LQFP32 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	STC International Ltd.
package instruction	LQFP,
Reach Compliance Code	unknown
Has ADC	NO
Address bus width
maximum clock frequency	12 MHz
DAC channel	NO
DMA channel	NO
External data bus width
JESD-30 code	S-PQFP-G32
length	7 mm
Number of I/O lines	27
Number of terminals	32
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
PWM channel	YES
Package body material	PLASTIC/EPOXY
encapsulated code	LQFP
Package shape	SQUARE
Package form	FLATPACK, LOW PROFILE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
ROM programmability	FLASH
Maximum seat height	1.65 mm
speed	35 MHz
Maximum supply voltage	5.5 V
Minimum supply voltage	3.5 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	7 mm
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER
Base Number Matches	1

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STC12C5410AD series MCU

STC12LE5410AD series MCU

Data Sheet

STC MCU Limited

Update date: 2011-7-15

STC MCU Limited.

CONTENTS

Chapter 1. Introduction ................................................................7

1.1

1.2

1.3

1.4

1.5

1.6

Features ................................................................................................. 7

Block diagram ....................................................................................... 8

Pin Configurations ................................................................................ 9

STC12C5410AD series Selection Table...............................................11

STC12C5410AD series Minimum Application System ...................... 12

STC12C5410AD series MCU Typical Application Circuit for ISP .... 13

1.6.1 STC12C5410AD series MCU (28 pin) Typical Application Circuit for ISP..... 13

1.6.2 STC12C5410AD series MCU (20 pin) Typical Application Circuit for ISP..... 15

1.6.3 STC12C5410AD series MCU (32 pin) Typical Application Circuit for ISP..... 17

1.7 Pin Descriptions .................................................................................. 18

1.8 Package Dimension Drawings............................................................. 20

1.9 STC12C5410AD series MCU naming rules ....................................... 26

1.10 Global Unique Identification Number (ID) ....................................... 27

Chapter 2. Clock, Power Management and Reset ...................30

2.1 Clock ................................................................................................... 30

2.1.1

2.1.2

2.1.3

2.1.4

On-Chip R/C Clock and External Crystal/Clcok are Optional in STC-ISP.exe 30

Divider for System Clock .................................................................................. 31

How to Know Internal RC Oscillator frequency(Internal clock frequency) ..... 32

Programmable Clock Output .............................................................................. 35

2.1.4.1 Timer 0 Programmable Clock-out on P1.0 ....................................................................... 36

2.1.4.2 Timer 1 Programmable Clock-out on P1.1 ....................................................................... 37

2.2 Power Management Modes ................................................................. 38

2.2.1 Slow Down Mode ............................................................................................... 39

2.2.2 Idle Mode ............................................................................................................ 40

2.2.3 Stop / Power Down (PD) Mode and Demo Program (C and ASM) ................... 41

2.3 RESET Sources ................................................................................... 47

2.3.1

2.3.2

2.3.3

2.3.4

2.3.5

RESET Pin .......................................................................................................... 47

Software RESET................................................................................................. 47

Power-On Reset (POR)....................................................................................... 48

MAX810 power-on-Reset delay ......................................................................... 48

Internal Low Voltage Detection Reset ................................................................ 48

2.3.6 Watch-Dog-Timer ............................................................................................... 52

2.3.7 Warm Boot and Cold Boot Reset ........................................................................ 56

Chapter 3. Memory Organization .............................................57

3.1 Program Memory ................................................................................ 57

3.2 Data Memory(SRAM) ......................................................................... 58

3.2.1 On-chip Scratch-Pad RAM ................................................................................. 58

3.2.2 Auxiliary RAM ................................................................................................... 61

3.3 Special Function Registers .................................................................. 64

3.3.1 Special Function Registers Address Map ........................................................... 64

3.3.2 Special Function Registers Bits Description ...................................................... 65

Chapter 4. Configurable I/O Ports of STC12C5410AD series 70

4.1 I/O Ports Configurations ..................................................................... 70

4.2 I/O ports Modes ................................................................................... 73

4.2.1

4.2.2

4.2.3

4.2.4

Quasi-bidirectional I/O ....................................................................................... 73

Push-pull Output ................................................................................................. 74

Input-only (High-Impedance)Mode.................................................................... 74

Open-drain Output .............................................................................................. 74

4.3 I/O port application notes .................................................................... 75

4.4 Typical transistor control circuit .......................................................... 75

4.5 Typical diode control circuit ................................................................ 75

4.6 3V/5V hybrid system ........................................................................... 76

4.7 How to make I/O port low after MCU reset ........................................ 77

4.8 I/O status while PWM outputing ......................................................... 77

4.9 I/O drive LED application circuit ........................................................ 78

4.10 I/O immediately drive LCD application circuit................................. 79

4.11 Using A/D Conversion to scan key application circuit...................... 80

ted

Chapter 5. Instruction System ...................................................81

5.1 Addressing Modes ............................................................................... 81

5.2 Instruction Set Summary ..................................................................... 82

5.3 Instruction Definitions ......................................................................... 87

Chapter 6. Interrupt System ....................................................124

6.1 Interrupt Structure ............................................................................. 126

6.2 Interrupt Register ............................................................................... 128

6.3 Interrupt Priorities ............................................................................. 138

6.4

6.5

6.6

6.7

How Interrupts Are Handled ............................................................. 139

External Interrupts ............................................................................ 140

Response Time ................................................................................. 144

Demo Programs about Interrupts (C and ASM) ................................ 145

External Interrupt 0 (INT0 ) Demo Programs (C and ASM) ........................... 145

External Interrupt 1 (INT1 ) Demo Programs (C and ASM) ........................... 149

Programs of P3.4/T0 Interrupt(falling edge) used to wake up PD mode ......... 153

Programs of P3.5/T1 Interrupt(falling edge) used to wake up PD mode ......... 155

Program of P3.0/RxD Interrupt(falling edge) used to wake up PD mode ........ 157

Program of PCA Interrupt used to wake up Power Down mode ...................... 160

6.7.1

6.7.2

6.7.3

6.7.4

6.7.5

6.7.6

Chapter 7. Timer/Counter 0/1 .................................................164

7.1 Special Function Registers about Timer/Counter .............................. 164

7.2 Timer/Counter 0

Mode of Operation (Compatible with traditional 8051 MCU) ........ 168

7.2.1

7.2.2

7.2.3

7.2.4

Mode 0 (13-bit Timer/Counter) .....................................................................................168

Mode 1 (16-bit Timer/Counter) and Demo Programs (C and ASM) ............................. 169

Mode 2 (8-bit Auto-Reload Mode) and Demo Programs (C and ASM) ........................ 173

Mode 3 (Two 8-bit Timers/Couters) .............................................................................. 176

7.3 Timer/Counter 1 Mode of Operation ................................................. 177

7.3.1

Mode 0 (13-bit Timer/Counter) .....................................................................................177

7.3.2

Mode 1 (16-bit Timer/Counter) and Demo Programs (C and ASM) ............................. 178

7.3.3

Mode 2 (8-bit Auto-Reload Mode) and Demo Programs (C and ASM) ........................ 182

ted

7.4 Programmable Clock Output and Demo Programs (C and ASM) .... 185

7.4.1 Timer 0 Programmable Clock-out on P1.0 and Demo Program(C and ASM) . 187

7.4.2 Timer 1 Programmable Clock-out on P1.1 and Demo Program(C and ASM) . 190

7.5 Application note for Timer in practice .............................................. 193

Chapter 8. UART with Enhanced Function ...........................194

8.1 Special Function Registers about UART........................................... 194

8.2 UART1 Operation Modes ................................................................. 198

8.2.1

8.2.2

8.2.3

8.2.4

Mode 0: 8-Bit Shift Register............................................................................. 198

Mode 1: 8-Bit UART with Variable Baud Rate ................................................ 200

Mode 2: 9-Bit UART with Fixed Baud Rate .................................................... 202

Mode 3: 9-Bit UART with Variable Baud Rate ................................................ 204

8.3 Frame Error Detection ....................................................................... 206

8.4 Multiprocessor Communications ...................................................... 206

8.5 Automatic Address Recognition ........................................................ 207

8.6 Buad Rates ......................................................................................... 209

8.7 Demo Programs about UART (C and ASM) ..................................... 210

Chapter 9. Analog to Digital Converter ..................................216

9.1

9.2

9.3

9.4

9.5

9.6

9.7

A/D Converter Structure .................................................................... 216

Registers for ADC ............................................................................. 218

Application Circuit of A/D Converter .............................................. 221

ADC Application Circuit for Key Scan ............................................. 222

A/D reference voltage source ............................................................ 223

Program using interrupts to demostrate A/D Conversion ................ 224

Program using polling to demostrate A/D Conversion .................... 230

Chapter 10. Programmable Counter Array(PCA) ................236

10.1 SFRs related with PCA.................................................................... 236

10.2 PCA/PWM Structure ....................................................................... 243

10.3 PCA Modules Operation Mode ...................................................... 245

10.3.1

10.3.2

10.3.3

10.3.4

PCA Capture Mode ......................................................................................... 245

16-bit Software Timer Mode .......................................................................... 246

High Speed Output Mode ............................................................................... 247

Pulse Width Modulator Mode (PWM mode).................................................. 248

10.4

10.5

10.6

10.7

10.8

10.9

Programs for PCA module extended external interrupt ................. 249

Demo Programs for PCA module acted as 16-bit Timer ................ 253

Programs for PCA module as 16-bit High Speed Output ............... 257

Demo Programs for PCA module as PWM Output (C and ASM) .. 261

Demo Program for PCA clock base on Timer 1 overflow rate....... 265

Using PWM achieve D/A Conversion function reference circuit ... 269

ted

Chapter 11. Serial Peripheral Interface (SPI) ........................270

11.1 Special Function Registers related with SPI.................................... 270

11.2 SPI Structure .................................................................................... 273

11.3 SPI Data Communication ................................................................ 274

11.3.1 SPI Configuration ........................................................................................... 274

11.3.2 SPI Data Communication Modes ................................................................... 275

11.3.3 SPI Data Modes .............................................................................................. 277

11.4 SPI Function Demo Programs (Single Master — Single Slave) ..... 279

11.4.1 SPI Function Demo Programs using Interrupts (C and ASM)........................ 279

11.4.2 SPI Function Demo Programs using Polling (C and ASM)............................ 285

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