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EM78P5842 Dataheets PDF



Part Number EM78P5842
Manufacturers ELAN Microelectronics
Logo ELAN Microelectronics
Description (EM78P5840 - EM78P5842) 8 BIT MICROCONTROLLER
Datasheet EM78P5842 DatasheetEM78P5842 Datasheet (PDF)

www.DataSheet4U.com EM78P5840/41/42 8-BIT MICRO-CONTROLLER Version 2.6 ELAN MICROELECTRONICS CORP. No. 12, Innovation 1st RD., Science-Based Industrial Park Hsin Chu City, Taiwan, R.O.C. TEL: (03) 5639977 FAX: (03) 5630118 Version History Specification Revision History Version eFHP5830B 1.0 eFHP5840 2.0 Content Initial version 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 1. 1. 2. 1. 2. 1. 2. 1. 2. 1. 2. Change counter1 external input pin from PC2 to P94 Modify P60, P61 to INPUT/OUTPUT IO Remove P71 intern.

  EM78P5842   EM78P5842


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www.DataSheet4U.com EM78P5840/41/42 8-BIT MICRO-CONTROLLER Version 2.6 ELAN MICROELECTRONICS CORP. No. 12, Innovation 1st RD., Science-Based Industrial Park Hsin Chu City, Taiwan, R.O.C. TEL: (03) 5639977 FAX: (03) 5630118 Version History Specification Revision History Version eFHP5830B 1.0 eFHP5840 2.0 Content Initial version 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 1. 1. 2. 1. 2. 1. 2. 1. 2. 1. 2. Change counter1 external input pin from PC2 to P94 Modify P60, P61 to INPUT/OUTPUT IO Remove P71 internal pull high function Modify control register initial value Remove 256 byte Data RAM Remove SPI function Add IRC and ERIC oscillator function Decrease Stack from 16 to 8 Add Counter1 external source (from IO pad) Remove Counter2 Add the relative of ERIC oscillating frequency and external R Add IRC mode CLK trimming control in code option. Modify PORT9 sink/driver current. Rename “ERC mode” to “ERIC mode” Modify the relative between ERIC mode’s oscillating CLK and the value of external resister. Change pin name from “ERCI” to “ERIC” Change the descript about CONT reg bit7 Remove Crystal mode’s Idle application Modify operating temperature Rename eFH78P5840/41/42 ¡÷ EM78P5840/41/42 Change IRC frequency deviation from +/- 5% to +/- 10% 2.1 2.2 2.3 2.4 2.5 2.6 Relative to EM785840’s ROM-less, OTP and mask: ROM-less ICE5830 OTP EM78P5840 EM78P5841 EM78P 5842 Mask EM785840 EM785841 EM785842 Table1: the relation between EM78P5830 and EM78P5840 series: EM78P5830 series EM78P5840 series PACKAGE EM78P5830CP EM78P5840P 18 pin PDIP EM78P5830ACP EM78P5830CM EM78P5840M 18 pin SOP EM78P5830ACM EM78P5830BP EM78P5841P 20 pin PDIP EM78P5830ABP EM78P5830BM EM78P5841M 20 pin SOP EM78P5830ABM EM78P5830FP EM78P5842P 24 pin PDIP EM78P5830AFP EM78P5830FM EM78P5842M 24 pin SOP EM78P5830AFM EM78P5840/5841/5842 8-bit Micro-controller Table2: the major differences between EM78P5830 and EM78P5840 series: EM78P5830 series EM78P5840 series CID RAM 256 byte NA ERIC mode NA Under 6M Hz IRC mode NA 2M / 4M Hz WDT source Crystal or PLL IRC1 External CNT1 input NA Shared with P94 P71 pull high Internal pull high External pull high /RESET pin /RESET only Shared with P71 PLLC pin PLLC only Shared with P70 and ERCI XIN, XOUT Crystal input Shared with P60 and P61 Table3: the major differences between ICE5840, EM78P5840 and EM785840: ICE5840 EM78P5840 series CID RAM 1024 byte NA CID RAM address auto V NA +1 CNT1 (**) 8 bit counter 8 bit counter EM785840 series NA NA 8 or 16 (shared with CNT2) bit counter CNT2 (**) V X V STACK 12 8 8 ** CNT2 is only exist on EM78P5840/41/42 and EM785840/41/42, CNT2 is un-support on ICE5840. Table4: Differences between EM78P5840, EM78P5841 and EM78P5842: EM78P5840 EM78P5841 Pin count 18 20 PWM X 2 channel IO (MAX) 16 18 EM78P5842 24 2 channel 22 User Application Note (Before using this chip, take a look at the following description note, it includes important messages.) 1. There are some undefined bits in the registers. The values in these bits are unpredicted. These bits are not allowed to use. We use the symbol “-” in the spec to recognize them. A fixed value must be write in some specific unused bits by software or some unpredicted wrong will occur. 2. You will see some names for the register bits definitions. Some name will be appear very frequently in the whole spec. The following describes the meaning for the register’s definitions such as bit type, bit name, bit number and so on. __________________________________________________________________________________________________________________________________________________________________ * This specification is subject to change without notice. 1 2004/11/10 V2.6 EM78P5840/5841/5842 8-bit Micro-controller RA PAGE0 7 RAB7 R/W -0 Bit type Bit name Bit number Register name and its page 6 RAB6 R/W -0 read/write (default value=0) 5 BAB5 R-1 4 RAB4 R/W -1 read/write (default value=1) 3 - 2 RAB2 R 1 RAB1 R-0 0 RAB0 R/W read/write (w/o default value) read only (w/o default value) (undefined) not allowed to use read only (default value=1) read only (default value=0) 3. Always set IOCC PAGE1 bit 0 = 1 otherwise partial ADC function cannot be used (in ICE5830). 4. Please do not switch MCU operation mode from normal mode to sleep mode directly. Before into sleep mode, please switch MCU to green mode. 5. While switching main clock (regardless of high freq to low freq or on the other hand), adding 6 instructions delay (NOP) is required. 6. Offset voltage will effect ADC’s result, please refer to figure 19 to detail. 7. Please do not connect unnecessary circuit on OTP burner pins during burning the OTP ROM. __________________________________________________________________________________________________________________________________________________________________ * This specification is subject to change without notice. 2 2004/11/10 V2.6 EM78P5840/5841/5842 8-bit Micro-controller I. General Description The EM78P5840 series are 8-bit RISC type micro.


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