EM78P870 Datasheet | ELAN Microelectronics

feature description 2.Update Fig.2, Fig.3 3.Add test pin 4.Update operational register table list 5.Update R6 page1, R7 page1, R8 page1, R9 page1, RD page1, IOC6 page1 6.Update initial condition 7.Update application circuit 8.Update RE page1, IOCE page 2 1.2 4K Data RAM , No Data ROM 1.3 Add DED function 1.4 Remove DED function Remove parator’s 2.0V build-in reference voltage 1.5 Remove Idle mode Release Date 2001/07/12 2001/08/29 2001/9/28 2001/10/20 2003/7/1 2004/8/19 User Application Note 1. ROM, OTP, ICE EM78870 2. Main Function Difference EM78870 2.5K x 8 ICE EM78808 ICE EM78P870 4K x 8 3. While switching main clock (regardless of high freq to low freq or on the other hand), adding 6 instructions delay (NOP) is required. 4. RE page1 Bit6~Bit7 are Un-defined registers. These two bits are un-define and their values will variation. During calculation, please do not include these two bits. 5. Please do not switch MCU operation mode from normal mode to sleep mode directly. Before into idle or sleep mode, please switch MCU to green mode. 6. Please always keep RA page0 bit7 = 0 or un-expect error will happen!! EM78P870 8-bit OTP Micro-controller I.General Description The EM78P870 is an 8-bit RISC type microprocessor with low power, high speed CMOS technology. There are 32Kx13 bits Electrical One Time Programmable Read Only Memory (OTP-ROM) within it. Integrated onto a single chip are on_chip watchdog (WDT), RAM, programmable real time clock /counter, internal interrupt, power down mode, LCD driver, build-in KEY TONE clock generation, Programming Tone generators, Serial Peripheral Interface(SPI), parator and tri-state I/O. The EM78P870 provides a single chip solution to design a message_display. II.Feature ‧Operating voltage range : 2.5V～5.5V 2.2V~5.5V(Normal mode), 2.0V~5.5V(Green mode) ‧32K 13 on chip Program Electrical One Time Programmable Read Only Memory (OTP-ROM) ‧4K 8 on chip data RAM ‧144 byte working register ‧Up...