Instruction/ maintenance manual of the product MSM80C154S Oki
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259 MSM80C154S/83C154S ¡ Semiconductor GENERAL DESCRIPTION The MSM80C154S/MSM83C154S, designed for the high speed version of the existing MSM80C154/MSM83C154, is a higher performance 8-bit microcontroller providing low-power consumption.
260 ¡ Semiconductor MSM80C154S/83C154S • Package options 40-pin plastic DIP (DIP40-P-600-2.54) : (Product name: MSM80C154SRS/ MSM83C154S-xxxRS) 44-pin plastic QFP (QFP44-P-910-0.80-2K) : (Product name: MSM80C154SGS-2K/ MSM83C154S-xxxGS-2K) 44-pin QFJ (QFJ44-P-S650-1.
261 MSM80C154S/83C154S ¡ Semiconductor T2CON PCH CONTROL SIGNAL SPECIAL FUNCTION REGISTER ADDRESS DECODER PLA IR AIR C-ROM TR1 TR2 ACC ALU BR PSW RAMDP R/W AMP RAM 256 WORDS x 8BITS TH2 RCAP2H RCAP2L DPH PCL SP ROM 16K WORDS x 8BITS SENSE AMP DPL PCLL PORT 2 PORT 0 PCON IOCON OSC and TIMING PORT 1 PORT 3 P2.
262 ¡ Semiconductor MSM80C154S/83C154S PIN CONFIGURATION (TOP VIEW) 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 V SS P1.0/T2 P1.1/T2EX P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RESET P3.0/RXD P3.1/TXD P3.2/ INT0 P3.3/ INT1 P3.4/T0 P3.5/T1/HPDI P3.6/ WR P3.
263 MSM80C154S/83C154S ¡ Semiconductor 33 32 31 30 29 28 27 26 25 24 23 1 2 3 4 5 6 7 8 9 10 11 P1.5 P1.6 P1.7 RESET P3.0/RXD NC P3.1/TXD P3.2/INT0 P3.3/INT1 P3.4/T0 P3.5/T1/HPDI P0.4 P0.5 P0.6 P0.7 EA NC ALE PSEN P2.7 P2.6 P2.5 44 43 42 41 40 39 38 37 36 35 34 P1.
264 ¡ Semiconductor MSM80C154S/83C154S 33 32 31 30 29 28 27 26 25 24 23 1 2 3 4 5 6 7 8 9 10 11 P1.5 P1.6 P1.7 RESET P3.0/RXD NC P3.1/TXD P3.2/INT0 P3.3/INT1 P3.4/T0 P3.5/T1/HPDI P0.4 P0.5 P0.6 P0.7 EA NC ALE PSEN P2.7 P2.6 P2.5 44 43 42 41 40 39 38 37 36 35 34 P1.
265 MSM80C154S/83C154S ¡ Semiconductor PIN CONFIGURATION (Continued) NC : No-connection pin 44-Pin Plastic QFJ P0.3 P0.2 P0.1 P0.0 V CC NC P1.0/T2 P1.1/T2EX P1.2 P1.3 P1.4 P2.3 P2.2 P2.1 P2.0 NC V SS XTAL1 XTAL2 P3.7/ RD P3.6/ WR P1.5 P1.6 P1.7 RESET P3.
266 ¡ Semiconductor MSM80C154S/83C154S P0.0 to P0.7 P1.0 to P1.7 P2.0 to P2.7 P3.0 to P3.7 ALE PSEN EA Symbol Descriptipn Bidirectional I/O ports. They are also the data/address bus (input/output of data and output of lower 8-bit address when external memory is accessed).
267 MSM80C154S/83C154S ¡ Semiconductor PIN Descriptions (Continued) RESET Symbol Descriptipn XTAL1 XTAL2 V CC V SS If this pin remains "H" for at least one machine cycle, the MSM80C154S/MSM83C154S is reset. Since this pin is pulled down internally, a power-on reset is achieved by simply connecting a capacitor between V CC and this pin.
268 ¡ Semiconductor MSM80C154S/83C154S REGISTERS Diagram of Special Function Registers REGISTER NAME BIT ADDRESS DIRECT ADDRESS b7 b5 b4 b3 b2 b1 b0 b6 IOCON B ACC PSW TH2 TL2 RCAP2H RCAP2L T2CON IP .
269 MSM80C154S/83C154S ¡ Semiconductor Timer/counter 0 mode setting NAME ADDRESS MSB LSB 76543210 BIT LOCATION FLAG FUNCTION TMOD 89H GATE C/ T M1 M0 GATE C/ T M1 M0 TMOD.0 M0 M1 M0 8-bit timer/counter with 5-bit prescalar. 00 16-bit timer/counter. 01 8-bit timer/counter with 8-bit auto reloading.
270 ¡ Semiconductor MSM80C154S/83C154S Power control register (PCON) IDLE mode is set when this bit is set to "1". CPU operations are stopped when IDLE mode is set, but XTAL1•2, timer/counters 0, 1 and 2, the interrupt circuits, and the serial port remain active.
271 MSM80C154S/83C154S ¡ Semiconductor External interrupt 0 signal is used in level-detect mode when this bit is "0" and in trigger detect mode when "1". NAME ADDRESS MSB LSB 76543210 BIT LOCATION FLAG FUNCTION TCON 88H TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 TCON.
272 ¡ Semiconductor MSM80C154S/83C154S "End of serial port reception" interrupt request flag. This flag must be reset by software during interrupt service routine. This flag is set after the eighth bit of data has been received when in mode 0, or by the STOP bit when in any other mode.
273 MSM80C154S/83C154S ¡ Semiconductor Interrupt control bit for external interrupt 0. Interrupt disabled when bit is "0". Interrupt enabled when bit is "1". NAME ADDRESS MSB LSB 76543210 BIT LOCATION FLAG FUNCTION IE 0A8H EA — ET2 ES ET1 EX1 ET0 EX0 IE.
274 ¡ Semiconductor MSM80C154S/83C154S Interrupt priority bit for external interrupt 0. Priority is assigned when bit is "1". NAME ADDRESS MSB LSB 76543210 BIT LOCATION FLAG FUNCTION IP 0B8H PCT — PT2 PS PT1 PX1 PT0 PX0 IP.0 PX0 IP.1 PT0 IP.
275 MSM80C154S/83C154S ¡ Semiconductor Program status word register (PSW) Accumulator (ACC) parity indicator. This bit is "1" when the "1" bit number in the accumulator is an odd number, and "0" when an even number. NAME ADDRESS MSB LSB 76543210 BIT LOCATION FLAG FUNCTION PSW 0D0H CY AC F0 RS1 RS0 OV F1 P PSW.
276 ¡ Semiconductor MSM80C154S/83C154S If CPU power down mode (PD, HPD) is activated with this bit set to "1", the outputs from ports 0, 1, 2, and 3 are switched to floating status. When this bit is "0", ports 0, 1, 2, and 3 are in output mode.
277 MSM80C154S/83C154S ¡ Semiconductor Capture mode is set when TCLK + RCLK = "0" and CP/ RL2 = "1". 16-bit auto reload mode is set when TCLK + RCLK = "0" and CP/ RL2 = "0". CP/ RL2 is ignored when TCLK + RCLK = "1".
278 ¡ Semiconductor MSM80C154S/83C154S MEMORY MAPS Program Area 002BH 43 Timer interrupt 2 start 0023H 35 S I/O interrupt start 001BH 27 Timer interrupt 1 start 0013H 19 External interrupt 1 start 00.
279 MSM80C154S/83C154S ¡ Semiconductor Internal Data Memory and Special Function Register Layout Diagram 248(0F8H) 240(0F0H) 224(0E0H) 208(0D0H) 205(0CDH) 204(0CCH) 203(OCBH) 202(0CAH) 200(0C8H) 184(.
280 ¡ Semiconductor MSM80C154S/83C154S 7F 77 6F 67 5F 57 4F 47 3F 37 2F 27 1F 17 0F 07 7E 76 6E 66 5E 56 4E 46 3E 36 2E 26 1E 16 0E 06 7D 75 6D 65 5D 55 4D 45 3D 35 2D 25 1D 15 0D 05 7C 74 6C 64 5C 5.
281 MSM80C154S/83C154S ¡ Semiconductor ABSOLUTE MAXIMUM RATINGS Parameter Symbol Condition Rating Unit Supply voltage Input voltage Storage temperature V CC Ta=25°C –0.
282 ¡ Semiconductor MSM80C154S/83C154S ELECTRICAL CHARACTERISTICS DC Characteristics 1 Meas- uring circuit 0.2 V CC –0.1 Parameter Symbol Condition Min. Typ. Max. Unit Input Low Voltage V IL — –0.5 — V V CC +0.5 Input High Voltage V IH Except XTAL1, EA , 0.
283 MSM80C154S/83C154S ¡ Semiconductor Maximum power supply current normal operation I CC (mA) V CC 4 V 5 V 6 V Freq 2.2 3.1 4.1 1 MHz 3.9 5.2 7.0 3 MHz 12.0 16.0 20.0 12 MHz 16.0 20.0 25.0 16 MHz 19.0 25.0 30.0 20 MHz V CC 4.5 V 5 V 6 V Freq 25.0 29.
284 ¡ Semiconductor MSM80C154S/83C154S DC Characteristics 2 — Output High Voltage V OH1 I OH =–20 m A 0.75 V CC —V (PORT 0, ALE, PSEN ) –40 Logical 0 Input Current/ Logical 1 Output Current/ (PORT 1, 2, 3) I IL / I OH V I =0.1 V –5 –10 m A V O =0.
285 MSM80C154S/83C154S ¡ Semiconductor Maximum power supply current normal operation I CC (mA) V CC 2.2 V 3.0 V 4.0 V Freq 0.9 1.4 2.2 1 MHz 1.8 2.4 4.3 3 MHz — 8.0 12.0 12 MHz — — 16.0 16 MHz Maximum power supply current idle mode I CC (mA) V CC 2.
286 ¡ Semiconductor MSM80C154S/83C154S V CC V SS INPUT OUTPUT V IH V IL (*2) V A I O 1 V CC V SS INPUT OUTPUT (*1) V 2 V CC V SS INPUT OUTPUT V IH V IL (*2) V A (*3) 3 V CC V SS INPUT OUTPUT V IH V IL A 4 A (*3) (*3) Measuring circuits *1: Repeated for specified input pins.
287 MSM80C154S/83C154S ¡ Semiconductor AC Characteristics (1) External program memory access AC characteristics Parameter Symble Unit Min. Max. 1 to 24 MHz Variable clock from 41.
288 ¡ Semiconductor MSM80C154S/83C154S t LHLL t AVLL t LLPL t PLPH t LLIV t PLIV t PXAV t PXIZ t LLAX t AZPL t AVIV t PXIX A0 to A7 INSTR IN A0 to A7 PORT0 PORT2 A8 to A15 A8 to A15 A8 to A15 PSEN AL.
289 MSM80C154S/83C154S ¡ Semiconductor (3) External data memory access AC characteristics *1 The variable check is from 0 to 24 MHz when the external check is used. *2 For 2.2 £ V CC <4 V Parameter Symbol Unit Min. Max. 1 to 24 MHz Variable clock from 41.
290 ¡ Semiconductor MSM80C154S/83C154S t LHLL t WHLH t LLDV t LLWL t RLRH t AVLL t LLAX t RLDV t RHDX t RHDZ t AVWL t AVDV PCH A8 to A15 PCH P2.0 to P2.
291 MSM80C154S/83C154S ¡ Semiconductor (6) Serial port (I/O Extension Mode) AC characteristics Parameter Symbol Min. Max. Unit Serial Port Clock Cycle Time t XLXL 12t CLCL —n s Output Data Setup to.
292 ¡ Semiconductor MSM80C154S/83C154S t XLXL t QVXH t XHQX t XHDV t XHDX VALID VALID VALID VALID VALID VALID VALID VALID MACHINE CYCLE ALE SHIFT CLOCK OUTPUT DATA INPUT DATA.
293 MSM80C154S/83C154S ¡ Semiconductor (7) AC Characteristics Measuring Conditions 1. Input/output signal V OH V OL V OH V OL V IH V IL V IH V IL TEST POINT * The input signals in AC test mode are ei.
294 ¡ Semiconductor MSM80C154S/83C154S Timing Diagram Basic timing ACC & RAM S1 S2 S3 S4 S5 S6 M1 S1 S2 S3 S4 S5 S6 M1 S1 S2 S3 S4 S5 S6 M2 S1 S2 S3 S4 S5 S6 M1 PCL PCL PCL PCL PCH PCH PCH PCH PC.
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If you already are a holder of Oki MSM80C154S, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Oki MSM80C154S.
However, one of the most important roles played by the user manual is to help in solving problems with Oki MSM80C154S. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Oki MSM80C154S along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
