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S3C820B Dataheets PDF



Part Number S3C820B
Manufacturers Samsung semiconductor
Logo Samsung semiconductor
Description S3C-SERIES MICROCONTROLLERS
Datasheet S3C820B DatasheetS3C820B Datasheet (PDF)

S3C820B PRODUCT OVERVIEW 1 PRODUCT OVERVIEW S3C-SERIES MICROCONTROLLERS Samsung’s S3C8-series of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU, a wide range of integrated peripherals, and various mask-programmable ROM sizes. Important CPU features include: — Efficient register-oriented architecture — Selectable CPU clock sources — Idle and Stop power-down mode release by interrupt — Built-in basic timer with watchdog function A sophisticated interrupt structure reco.

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S3C820B PRODUCT OVERVIEW 1 PRODUCT OVERVIEW S3C-SERIES MICROCONTROLLERS Samsung’s S3C8-series of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU, a wide range of integrated peripherals, and various mask-programmable ROM sizes. Important CPU features include: — Efficient register-oriented architecture — Selectable CPU clock sources — Idle and Stop power-down mode release by interrupt — Built-in basic timer with watchdog function A sophisticated interrupt structure recognizes up to eight interrupt levels. Each level can have one or more interrupt sources and vectors. Fast interrupt processing (within a minimum six CPU clocks) can be assigned to specific interrupt levels. S3C820B MICROCONTROLLER The S3C820B single-chip CMOS microcontroller is fabricated using a highly advanced CMOS process and is based on Samsung’s newest CPU architecture. The S3C820B is the microcontroller which has 64K-byte mask-programmable ROM and 192K-byte mask ROM for font data. Using a proven modular design approach, Samsung engineers developed the S3C820B by integrating the following peripheral modules with the powerful SAM87 core: — Four programmable I/O ports, excluding one BUZ pin, for a total of 32 pins. — Eight bit-programmable pins for external interrupts. — One 8-bit basic timer for oscillation stabilization and watchdog functions (system reset). — One 8-bit timer/counter and one 16-bit timer/counter with selectable operating modes. — Watch timer for real time. The S3C820B is a versatile microcontroller for data bank or dictionary. It is currently available in a 128pin QFP package. 1-1 PRODUCT OVERVIEW S3C820B FEATURES CPU • SAM87 CPU core LCD Controller/Driver • • • • 65 segments and 18 common terminals Internal resistor circuit for LCD bias Voltage doubler All dot can be switched on/off Memory • • • • 64K-byte internal program memory (ROM) 192K-byte internal memory (ROM) for font data 272-byte internal register file (Excluding LCD RAM) 6144-byte data RAM Timers and Timer/Counters • One programmable 8-bit basic timer (BT) for oscillation stabilization control or watchdog timer (software reset) function One 8-bit timer/counter (Timer 0) with three operating modes; Interval, Capture and PWM One 16-bit timer/counter (Timer 1) with two 8-bit timer/counter modes; Interval Instruction Set • • 78 instructions IDLE and STOP instructions added for power-down modes • • Instruction Execution Time • • 1.5 µs at 4 MHz fx (minimum) 183 µs at 32,768 Hz fxt Power-Down Modes • • Idle mode (CPU clock stops) Stop mode (main oscillation and CPU clock stops) Interrupts • • • Five interrupt levels and 15 interrupt sources 15 vectors (15 sources have a dedicated vector address) Fast interrupt processing feature (for one selected interrupt level) Operating Temperature Range • – 40 °C to + 85 °C Operating Voltage Range • • 2.2 V to 4.5 V at 1 MHz fx 2.7 V to 4.5 V at 4 MHz fx I/O Ports • • • Four 8-bit I/O ports (P0–P3) for a total of 32-bit programmable pins Eight input pins for external interrupts One output only pin for BUZ Package Type • 128-pin QFP Watch Timer • • • Interval time: 3.91 ms, 1s at 32,768 Hz Four frequency outputs to BUZ pin and BUZ pin Clock source generation for LCD 1-2 S3C820B PRODUCT OVERVIEW BLOCK DIAGRAM P0.0-P0.7 (A8-A15) P1.0-P1.7 (AD0-AD7) RESET Port 0 Port 1 TEST P2.0-P2.3 (AS, DW, DR, DM) P2.4-P2.7 (T0, T0CK, CLO, BUZ) P3.0/TB/INT0 P3.1/TA/INT1 P3.2/T1CK/INT2 P3.3/INT3 P3.4/INT4 P3.5/INT5 P3.6/INT6 P3.7/INT7 COM0-COM8 COM9-COM17 SEG0-SEG64 VLC0 BIAS CA CB TA TB T1CK Basic Timer Internal Bus Port 2 XIN XOUT I/O Port and Interrupt Control Main OSC Port 3 XTIN XTOUT Sub OSC SAM8 CPU LCD Driver/ Controller 64K-byte ROM 314-Byte Register File Voltage Doubler BUZ BUZ Watch Timer T0 Timer 0 T0CK Timer 1 192K-byte Font ROM 6144-Byte Data RAM Figure 1-1. Block Diagram 1-3 PRODUCT OVERVIEW S3C820B PIN ASSIGNMENTS SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 COM9 COM10 COM11 COM12 COM13 COM14 COM15 COM16 COM17 VDD VSS XOUT XIN TEST XTIN XTOUT RESET P0.7/A15 P0.6/A14 P0.5/A13 P0.4/A12 P0.3/A11 P0.2/A10 P0.1/A9 P0.0/A8 P1.7/AD7 P1.6/AD6 P1.5/AD5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 S3C820B (128-QFP-1420) 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 COM0 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 Figure 1-2. Pin Assignment (128-Pin QFP Package) 1-4 P1.4/AD4 P1.3/AD3 P1.2/AD2 P1.1/AD1 P1.0/A.


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