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User’s Guide
December 2002
SBAU077
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the t
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Contents 1 Introduction to the MSC1210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 MSC1210 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 MSC1210 Pin-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.2.1 I/O Ports (P0, P1, P2, and P3) . . . . . . . . . . . . .
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Contents 5 Addressing Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.2 Immediate Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.3 Direct Addressing . . . . . . . . . . . . . . . . . . .
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Contents 10 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1 10.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2 10.2 Events That Can Trigger Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3 10.3 Enabling Interrupts . . . . . . . . . . . . . .
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Contents 13 Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1 13.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2 13.2 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2 13.3 Clock Phase and Polarity Controls . . . . . . . . . . .
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Contents 16 8052 Assembly Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1 16.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2 16.2 Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-2 16.3 Number Bases . . . . . . . . . . . . . . . .
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Contents A Additional Features in the MSC1210 Compared to the 8052 . . . . . . . . . . . . . . . . . . . . . . . . . A-1 A.1 Additional Features in the MSC1210 Compared to 8052 . . . . . . . . . . . . . . . . . . . . . . . . . A-2 B Clock Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 B.1 MSC1210 Timing Chain and Clock Control Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2 C Boot ROM
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Contents 1−1. MSC1210 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1−2. Pin Configuration of the MSC1210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1−3. MSC1210 Timing Compared to Standard 8051 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 2−1. MSC1210 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents 16−1. Rotate Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-23 17−1. Timer/Counter 0 − Mode 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-4 17−2. Timer/Counter 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-5 17−3. Parallel Port 3 Peripheral . . . . . . . . . . .
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Contents
1−1. Pin Descriptions of the MSC1210 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 2−1. Program and Data Memory Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2−2. Program and Data Memory Addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 3−1. SFR Names and Addresses. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents 14−1. Typical Sub-Circuit Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3 14−2. Comparator Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3 14−3. Band Gap Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3 16−1. Order of Precedence for Mathematical Operators . . . . . . . . . . .
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Chapter 1 This chapter describes the basic function of the MSC1210 analog-to-digital converter (ADC). Topic Page 1.1 MSC1210 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 MSC1210 Pin-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.3 Enhanced 8051 Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 1.4 Family Device Compa
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MSC1210 Description 1.1 MSC1210 Description The MicroSystem family of devices is designed for high-resolution measure- ment applications in smart transmitters, industrial process control, weigh scales, chromatography, and portable instrumentation. They provide high- performance mixed signal solutions. The MicroSystem family not only in- cludes high-end analog features and digital processing capability, but also in- tegrates high-performance peripherals to offer a unique system solution. The main
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MSC1210 Pin-Out The on-chip FLASH memory is programmable in a variety of modes over a wide temperature and operating voltage range. This greatly simplifies pro- gramming at both the manufacturing level and in the field. The on-chip high-performance analog features are state-of-the-art. The perfor- mance and features of the analog functions rival the best of the industry. The low- noise ADC and the precision voltage reference along with the integration of other analog features greatly simplify ac
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MSC1210 Pin-Out Table 1−1.Pin Descriptions of the MSC1210 Pin # Name Description 1 XOUT The crystal oscillator pin XOUT supports parallel resonant AT cut crys- tals and ceramic resonators. XOUT serves as the output of the crystal amplifier. 2 XIN The crystal oscillator pin XIN supports parallel resonant AT cut crystals and ceramic resonators. XIN can also be an input if there is an external clock source instead of a crystal. 3-10 P3.0-P3.7 Port 3 is a bidirectional I/O port. The alternate functi
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MSC1210 Pin-Out Table 1−1 Pin Descriptions of the MSC1210 (Continued) Pin # Name Description 34-40, 43 P2.0-P2.7 Port 2 is a bidirectional I/O port. The alternate functions for Port 2 are listed below. Port 2—Alternate Functions: 34-40, 43 P2.0-P2.7 PORT ALTERNATE MODE P2.0 A8 Address Bit 8 P2.1 A9 Address Bit 9 P2.2 A10 Address Bit 10 P2.3 A11 Address Bit 11 P2.4 A12 Address Bit 12 P2.5 A13 Address Bit 13 P2.6 A14 Address Bit 14 P2.7 A15 Address Bit 15 44 PSEN, OSCCLK, Program Store Enable: Con
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MSC1210 Pin-Out Table 1−1 Pin Descriptions of the MSC1210 (Continued) Pin # Name Description 46, 47, P0.0−P0.7 P0.5 AD5 Address/Data Bit 5 49-54 49-54 P0.6 AD6 Address/Data Bit 6 P0.7 AD7 Address/Data Bit 7 55, 56, P1.0−P1.7 Port 1 is a bidirectional I/O port. The alternate functions for Port 1 are 59−64 listed below. Port 1—Alternate Functions: PORT ALTERNATE MODE P1.0 T2 T2 Input P1.1 T2EX T2 External Input P1.2 RxD1 Serial Port Input P1.3 TxD1 Serial Port Output P1.4 INT2/SS External Interrup
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MSC1210 Pin-Out 1.2.1.2 Port 1 Port 1 consists of eight I/O lines that may be used to interface to external parts. Port 1 is commonly used to interface to external hardware such as LCDs, key- pads, and other devices. As opposed to a standard 8052 core, all I/O lines of the MSC1210 serve optional alternate functions, as described below. These lines can still be used for the developing purposes, if the functions described below are not needed. P1.0 (T2): If T2CON.1 is set (C/T2), then timer 2 is i
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MSC1210 Pin-Out 1.2.1.3 Port 2 Like port 0, port 2 is dual-function. In some circuit designs, it is available for access- ing external devices, while in others it is used to address external RAM or external code memory. When more than 256 bytes of external RAM are used, port 2 is used to output the high byte of the address that is to be accessed in a MOVX operation. Whether port 2 is used to address external memory or as general I/O lines is de- fined by the EGP23 bit in hardware configuration R
