User’s Guide
Important Notice
Introduction to the MSC1210
MSC1210 Memory Organization
Basic Registers
Addressing Modes
System Timing
Serial Communication
Analog-to-Digital Converter
Pulse Width Modulator/Tone Generator
Additional MSC1210 Hardware
Serial Peripheral Interface SPI
Additional Resource
Clock Timing Diagram
Additional Features in the MSC1210 Compared to
Boot ROM Routines
Instruction-Set Quick-Reference Guide
SPI/PWM/Flash Write Timing System Timing Interrupt Control
16−1
Pin Descriptions of the MSC1210
14−2
Chapter
MSC1210 Description
−1. MSC1210 Block Diagram
MSC1210 Pin-Out
−2. Pin Configuration of the MSC1210
Pin # Name Description
−1. Pin Descriptions of the MSC1210
Pin # Name Description
−1 Pin Descriptions of the MSC1210
AD7
1 I/O Ports P0, P1, P2, and P3
Port
Port
Oscillator Inputs XTAL1 and XTAL2
Reset Line RST
Address Latch Enable ALE
Program Store Enable Psen
External Access EA
−3. MSC1210 Timing Compared to Standard 8051 Timing
Enhanced 8051 Core
Family Device Compatibility
Flash Memory
High Performance Analog Functions
High-Performance Peripherals
Description Program Memory Data Memory Internal RAM
Program Memory
Description
MSC1210Y2 MSC1210Y3 MSC1210Y4 MSC1210Y5
−1. Program and Data Memory Size
Data Memory
−2. Program and Data Memory Addresses
On-Chip Extended Static RAM Sram
External Data Memory
On-Chip Flash Data Memory
−2. MSC1210 Memory Map Register Bank
Internal RAM
Register Banks
Stack
Bit Memory
Or execute
Special Function Register SFR Memory
Defines the MSC1210 SFRs
SCON0
−1. SFR Names and Addresses
Referencing Bits of SFRs
Referencing SFRs
SFR Types
Bit−Addressable SFRs
SFR Definitions
SFR Definitions
SFR Definitions
SFR Definitions
Can be generated automatically by the MSC1210
P0DDRL/P0DDRH Port 0 Data Direction Low/High Byte, Addresses
GCL/GCM/GCH Gain Low/Middle/High Byte, Addresses D4H/D5H/D6H
SFR Definitions
SFR Definitions
SFR Definitions
Describes the basic register functions of the MSC1210 ADC
Registers
Accumulator
Program Counter PC
Register
Stack Pointer SP
Data Pointer DPTR0/DPTR1
Describes the various addressing modes of the MSC1210
Mode Example
Immediate Addressing
−1. MSC1210 Addressing Modes
Direct Addressing
Indirect Addressing
Movx A,@DPTR Movx @DPTR,A
External Direct Addressing
Code Indirect Adressing
External Indirect Addressing
Describes the program flow of the MSC1210 ADC
Direct Jumps
Conditional Branching
Consider the example
Direct Calls
Returns From Routines
Interrupts
Description System Timers Startup Timing
−1. Standard 8051 Timing
System Timing
System Timers
−2. MSC1210 Timing Chain and Clock Control
Milliseconds Timer
Microseconds Timer
−4. System Timing Interrupt Control
One Hundred Millisecond Clock
Normal-Mode Power-On Reset Timing
Flash Programming Mode Power-On Reset Timing
Startup Timing
Psen
Symbol Parameter Min Max Unit
Describes the timers of the MSC1210 ADC
How Does a Timer Count?
Using Timers to Measure Time
How Long Does a Timer Take to Count?
RD or WR Strobe
Width Width ∝s
Movx Duration SYS CLKs At 12MHz
Timer SFRs
−1. Timer Conrol SFRs
SFR Name Description SFR Address Bit Addressable?
Mode
Tmod SFR
TxM1 TxM0 Timer Description of Timer Mode
−2. Timer Modes and Usage
−3. Example of 8-Bit Auto-Reload
Instruction
Cycle
Bit Name Bit Address Explanation of Function Timer
Tcon SFR
−4. Tcon 88 H SFR
Reading the Timer
Initializing a Timer
Detecting Timer Overflow
Timing the Length of Events
Using Timers as Event Counters
1 T2CON SFR
Using Timer
Timer 2 in Auto-Reload Mode
Timer 2 in Capture Mode
Timer 2 as a Baud Rate Generator
Describes serial communication using the MSC1210 ADC
Description
Function Length Period
Setting the Serial Port Mode
Mode
−1. SM0 and SM1 Function Definitions
High four bits bits 4 through 7 are configuration bits
Serial Mode 0 Synchronous Half-Duplex
Serial Mode 1 Asynchronous Full-Duplex
−2. Serial Port Mode 0 Receive Timing-High Speed Operation
−3. Serial Port Mode 1 Transmit Timing
BaudRate + 32 @ Timer1Overflow
−2. Common Baud Rates Using Timer
BaudRate + Timer2Overflow
BaudRate + 12 @ 256 * TH1
Serial Mode 2 Asynchronous Full-Duplex
−3. Common Baud Rates Using Timer
Rcap 2H Rcap 2L +
Baud Rate RCAP2HRCAP2L @ 11.0592MHz f OSC
BaudRate + 2SMOD @ fOSC
−6. Serial Port 0 Mode 2 Receive Timing
−7. Serial Port 0 Mode 3 Transmit Timing
Serial Mode 3 Asynchronous Full-Duplex
Setting the Serial Port Mode
−4. Mode 0 Commonly Used Baud Rates
Setting the Serial Port Baud Rate
TH1 = 256 − Crystal / 192 / Baud
Baud Rate
Desired Baud
−5. Baud Rate Settings for Timer
−6. Baud Rate Settings for Timer
Writing to the Serial Port
Baud Rate 33MHz clk 25MHz clk 11.0592MHz clk Kb/s
Reading the Serial Port
Describes the interrupts of the MSC1210 ADC
JNB TF0,SKIPTOGGLE
Interrupt/Event Addr Priority Flag Enable Priority Control
Events That Can Trigger Interrupts
−1.Interrupt Sources
10-4
−2.IE A8 H SFR
Enabling Interrupts
−3.EICON D8 H SFR
−4.EIE E8 H SFR
Polling Sequence
Interrupt Priorities
−5.IP B8 H SFR
−6.EIP F8 H SFR
Exiting Interrupts
Interrupt Triggering
Types of Interrupts
Serial Interrupts
External Interrupts
Bit Name Explanation of Function
−7.EXIF 91 H SFR
Timer Interrupts
Watchdog Interrupt
Auxiliary Interrupts
−8.Clearing Auxiliary Interrupts
−9.AIE A6 H SFR
Aux Interrupt Type Method to Clear Interrupt
−10. Aistat A7 H SFR
−11. PAI A5 H SFR
Bit Name Explanation of Function Clear Interrupt
PAIx Bits Explanation of Interrupt/Event
−12. PPI Bits of PAI SFR
−13. EWU C6 H SFR
Waking Up from Idle Mode
Push PSW
Register Protection
Push R0 Error − Invalid instruction
Common Problems with Interrupts
Description 11-2
Tone Generator 11-3
PWM Generator 11-5
−1. Block Diagram
ToneFrequency +1
Tone Generator
Tone Generator Waveforms
−3. Timing Diagram of Tone Generator in Staircase Mode
−1. PWM Polarity Conditions
PWM Generator
Duty Cycle = PWM Period +1 − PWM Duty/PWM Period +1
Condition Duty Cycle
−5. Timing Diagram of a PWM Waveform
This can be expressed in code as
Stmt ‘C’ Source Code Assembly Source Code
−2. Configuring the PWM for Tone Generation
Example of PWM Tone Generation
−3. Statement Explanations
Example of PWM Tone Generation Idling
−4. Configuring the PWM for Tone Generation with PWM Idling
−5. Statement Explanations
Explanation
−6. PWM Timing
Example of Updating PWM
11-12
12-10
PGA DAC
−1. MSC1210 Architecture
Input Multiplexer
−2. Input Multiplexer Configuration
Negative Input
Positive Input
Temperature Sensor
12-6
MSB
Burnout Current Sources
Analog Input
Input Buffer
@ 10
ACLKFrequency
Programmable Gain Amplifier PGA
−1.PGA Settings
Modulator
Offset DAC
−2.Calibration Mode Control Bits
Calibration Mode
Calibration
−4. Filter Step Responses
Digital Filter
−5. Filter Frequency Responses
−3.Filter Settling
Multiplexing Channels
−4.Output Data Rate and Channel Rate
Samples to Discard Filter
−5.Output Data Rate and Channel Rate 10x faster
Voltage Reference
Source
Summation/Shifter Register
Shift Summation Count
Summation Count
ADC Summation Mode
Manual Summation Mode
ADC Summation with Shift Divide Mode
Manual Shift Divide Mode
Interrupt-Driven ADC Sampling
Analog-to-Digital Converter 12-21
Syncronizing Multiple MSC1210 Devices
Analog-to-Digital Converter 12-23
ADC Result + V REF
Ratiometric Measurements
PT100
ADC Result + R REF @ I OUT
Differential Vref
12-26
SPI Signals 13-5
Clock Phase and Polarity Controls 13-4
SPI System Errors 13-6
Description 13-2
Functional Description
−1. SPI block diagram
−2. SPI Clock/Data Timing
Clock Phase and Polarity Controls
Master In Slave Out
SPI Signals
Master Out Slave
Serial Clock
SPI System Errors
Data Transfers
−3. SPI Reset State
13-8
−4. SPI Fifo Operation
Fifo Operation
Code Examples
SPI Master Transfer in Fifo Mode using Interrupts
13-12
Watchdog Timer 14-4
Description 14-2
Low-Voltage Detect 14-2
Low-Voltage Detect
−1. Brownout Reset and Low-Voltage Detection
−2.Comparator Specification
Power Supply
−1.Typical Sub-Circuit Current Consumption
−3.Band Gap Parameters
Watchdog Timer Hardware Configuration
Watchdog Timer
Enabling Watchdog Timer
Watchdog Timer
Resetting the Watchdog Timer
Watchdog Timeout/Activation
Disabling Watchdog Timer
Power Optimization 15-9
Hardware Configuration 15-2
Advanced Flash Memory 15-6
Breakpoint Generator 15-7
Hardware Configuration Registers
Hardware Configuration
DFSEL2/1/0 Amount of Flash Data Memory
Hardware Configuration Register 0 HCR0
Hardware Configuration Register 1 HCR1
Accessing Configuration Memory in a User Program
Hardware Configuration Memory
Updating Interrupts with Reset Sector Lock
Advanced Flash Memory
Write Protecting Flash Program Memory
Breakpoint Generator
Configuring Breakpoints
Disabling a Breakpoint
Breakpoint Auxiliary Interrupt
Power Optimization
Flash Memory as Data Memory
Advanced Topics 15-11
Advanced Topics and Other Information
Describes the 8052 Assembly Language
Syntax
Label and instruction
Expressions
Number Bases
Characters and Character Strings
Operator Precedence
−1.Order of Precedence for Mathematical Operators
Order Operator
Ljmp LABEL3
Changing Program Flow LJMP, SJMP, Ajmp
Subroutines LCALL, ACALL, RET
MOV DestinationRegister,SourceValue
Register Assignment MOV
MOV R2,R1 Invalid
MOV @R0,A
Incrementing and Decrementing Registers INC, DEC
Program Loops Djnz
Setting, Clearing, and Moving Bits SETB, CLR, CPL, MOV
16-14
Bit-Based Decisions and Branching JB, JBC, JNB, JC, JNC
Lcall Debouncekey
Value Comparison Cjne
Checkless JC Aisless
Less Than and Greater Than Comparison Cjne
Performing Additions ADD, Addc
Zero and Non-Zero Decisions JZ/JNZ
Performing Additions ADD, Addc
Performing Subtractions Subb
Performing Multiplication MUL
Performing Division DIV
−1. Rotate Operations
Shifting Bits RR, RRC, RL, RLC
−2.Results of ANL
Bit-Wise Logical Instructions ANL, ORL, XRL
−3.Results of ORL
−4.Results of XRL
Assembly Language 16-25
Swapping Accumulator Nibbles Swap
Exchanging Register Values XCH
Adjusting Accumulator for BCD Addition DA
Using the Stack PUSH/POP
Assembly Language 16-29
Setting the Data Pointer Dptr MOV Dptr
Reading and Writing External RAM/Data Memory Movx
Lcall SUB
Reading Code Memory/Tables Movc
SUB INC a
Using Jump Tables JMP @A+DPTR
Describes the Keil simulator and its functions
17-2
Keil Simulator 17-3
−1. Timer/Counter 0 − Mode
Timers
−2. Timer/Counter
Timer 0 & 1 Example
−4. Timer/Counter 1 Mode
Keil Simulator 17-7
17-8
Keil Simulator 17-9
17-10
Timer
−1.Timer/Counter 2 Control Bits
Register Bit Toggle Box Name
−7. Status of Watchdog Peripheral
Watchdog Reset Facility Example
17-14
Keil Simulator 17-15
Clock Control
System Timer
Analog-to-Digital Converter
−8. Analog−to−Digital Converter Peripheral
−9. Error Message
−10. Accumulator/Shifter Peripheral
Summation/Shifter
17.8.1 ADC/Summation/Shifter Example
17-22
Keil Simulator 17-23
17-24
Keil Simulator 17-25
17-26
Keil Simulator 17-27
−11. summation/Shifter Peripheral
Keil Simulator 17-29
−13. List Box for the Interrupt Peripheral
Ports
−14. Parallel Port 0 Contents Display Window
−16. SPI Peripheral Window
Serial Peripheral Interface SPI
Keil Simulator 17-33
SPI Sample Code
Keil Simulator 17-35
Serial Peripheral Interface SPI
Keil Simulator 17-37
17.12 ∝Vision 2 Debug Program Example
−17. Keil Debugger
Serial Port I/O
−18. Serial Channel 0 Communication Peripheral
17-42
Transmit Block Baud Rate Computation
BaudRate + fOSC
BaudRate + fOSC @
Receive Block Baud Rate Computation
−19. Clock Control Peripheral
Additional Resource
Topic
Appendix a
Additional Features in the MSC1210 Compared to
Appendix B
Figure B−1. MSC1210 Timing Chain and Clock Control
MSC1210 Timing Chain and Clock Control Diagram
Appendix C
Address Routine Declarations Description
Table C−1. Boot ROM Routines
Boot ROM Routines
Page
Appendix D
JB bitAddr,relAddr Ajmp pg1Addr
8052 Instruction-Set Quick-Reference Guide
Description Instruction Set
Appendix E
Description
Acall
8052 Instruction Set
Absolute Call within 2k Block
Acall codeAddress
ADD, Addc
Add Value, Add Value with Carry
ADD A,operand
Ajmp
Absolute Jump within 2k Block
Ajmp codeAddress
ANL
Bitwise
ANL operand1,operand2
CLR
Compare and Jump if Not Equal
Clear Register
Cjne operand1,operand2,reladdr
CPL
Decimal Adjust Accumulator
Complement Register
CPL operand
Carry flag is not set when the value rolls over from 0 to
Decrementing the value causes it to reset to 255 0xFFH
DEC register
See also INC, Subb
Djnz register,relAddr
Decrement and Jump if Not Zero
INC
Increment Reister
INC register
JBC
Jump if Bit Set
Jump if Bit Set and Clear Bit
Jump if Carry Set
JMP
JNB
JNC
JNZ
Lcall
Ljmp
MOV operand1, operand2
Not affected See also MOVC, MOVX, XCH, XCHD, PUSH, POP
MOV bit1,bit2
MOV
Move into/out of Internal RAM
MOV operand1,operand2
MOV Dptr
Movc
Movx
Multiply Accumulator by B
MUL
NOP
No Operation
ORL
Bitwise or
Syntax ORL operand1,operand2
Pop Value from Stack
POP
Push
Push Value onto Stack
Return from Subroutine
RET
Reti
Return from Interrupt
RLC
RRC
Setb
Short Jump
Sjmp
Subb
Subtract from Accumulator with Borrow
Swap
XCH
Xchd
Bitwise Exclusive or
XRL
Instructions OpCode Bytes Cycles Flags ??? 0xA5
Undefined
Appendix F
Extended Interrupt Enable EIE
Enable Interrupt Control Eicon
EX2-External 2 Interrupt Enable
Bit Addressable SFRs alphabetical
Extended Interrupt Priority EIP
Interrupt Enable IE
Port 0 P0
Interrupt Priority IP
Port 2 P2
Port 1 P1
Port 3 P3
Register Bank Register Bank Addresses
Program Status Word PSW
Serial Control Scon
Serial Mode Description Baud
Tcon
Timer Control Tcon
T2CON
Timer 2 Control T2CON
Appendix G
SFR Name Description SFR Address Hex
SFR/Address Cross-Reference
SFRs/Address Cross-Reference Guide alphabetical
Spircon