描述 Description

IMPORTANT NOTES ?Do not use Register BSR (05h) Bit7 ~ Bit3. ?Do not use Register BSR1 (07h) Bit7 ~ Bit3.?Check the range of BSR (05h) and BSR1 (07h) are only 0x00~0x03.?Do not use LCD RAM 3Ch ~ 3Fh. ?Do not use Registers JDNZ at FSR1 (04h) special register.ePS5005 is an 8-bit RISC MCU embedded with a 11 x 60 LCD driver along with two 8-bit
timers, one 16-bit general timer, and a watch dog timer. Furthermore, ePS5005 isequipped
with 512 bytes RAM and 16K words program ROM. It is highly ideal for advance scientific
calculator application, particularly those that need a high performance?at low cost solution.
The MCU core is a one of ELAN's second generation RISC based IC's, knows as RISC
II (RII) series. The core was specifically designed for low power and portable device
applications. The ePS5005 also supports FAST, SLOW, and IDLE modes, as well as
SLEEP mode to enhance its low power consumption features.

特性 Features

MCU?8 bit RISC MCU
Operating voltage: 1.2V ~ 1.8V
Clock Source: Dual clock system
*? Low-frequency: 32KHz Internal RC oscillator / External RC oscillator / Crystal oscillator.
*? High-frequency 200KHz / 300KHz / 500KHz External RC oscillator.
One Instruction cycle time = 2 x System clock time
Program ROM addressing: Maximum 16K words
128 bytes un-banked RAM including special registers and common registers
4 x 128 bytes banked RAM
RAM stack can achieve maximum of 32 stack levels
TABLE LOOK UP function is fast and highly efficient when combined with REPEAT instruction
Register to Register move instruction
Compare and Branch in one instruction (2 cycles)
Single Repeat function (max. 256 repeat times)
Decimal ADD & SUB instruction
Full range CALL and JUMP ability (2 cycles)
Peripheral24 general I/O pins (PORTA, PORTB, PORTC)
11/10/5 COM x 60 SEG LCD driver (embedded)
One (Timer 0)16-bit timer
One (Timer1) 8-bit timer with wake up function
One (Timer2) 8-bit timer
One 8-bit watch dog timer
Key I/O function with maximum 64 keys
Internal Specification
Watchdog Timer with its own on-chip RC oscillator
MCU operating modes: SLEEP MODE, IDLE MODE, SLOW MODE, and FAST MODE
Support RC oscillation and crystal oscillation for clock system
MCU Wake up function consisting of input wake up and Timer1 wake up
MCU interrupt function consisting of Input port interrupt and Timer interrupt (Timer0 ~ 2).
MCU reset function includes power on reset, RSTB pin reset, and Watchdog timer reset.

應(yīng)用 Application

. The ePS5005 also supports FAST, SLOW, and IDLE modes, as well asSLEEP mode to enhance its low power consumption features.Features MCU 8 bit RISC MCU
Operating voltage: 1.2V ~ 1.8V
Clock Source: Dual clock system *  Low-frequency: 32KHz Internal RC oscillator / External RC oscillator / Crystal oscillator. *  High-frequency 200KHz / 300KHz / 500KHz External RC oscillator.
One Instruction cycle time = 2 x System clock time
Program ROM addressing: Maximum 16K words
128 bytes un-banked RAM including special registers and common registers
4 x 128 bytes banked RAM
RAM stack can achieve maximum of 32 stack levels
TABLE LOOK UP function is fast and highly efficient when combined with REPEAT instruction
Register to Register move instruction
Compare and Branch in one instruction (2 cycles)
Single Repeat function (max. 256 repeat times)
Decimal ADD & SUB instruction
Full range CALL and JUMP ability (2 cycles)