Electronic Components Datasheet Search |
|
EM73201 Datasheet(PDF) 11 Page - ELAN Microelectronics Corp |
|
EM73201 Datasheet(HTML) 11 Page - ELAN Microelectronics Corp |
11 / 30 page 11 * This specification are subject to be changed without notice. EM73201 4-BIT MICRO-CONTROLLER FOR GENERAL PURPOSE PRODUCT Preliminary 7.20.1999 LDL #5h; LDH #3h; STDMI #0Ah; RAM[35] ← Ah (3) For instruction : SELP, CLPL, TFPL, L regieter be a pointer to indicate the bit of I/O port. When LR = C - F, indicate P7.0 - P7.3 PROGRAM EXAMPLE: To set bit 2 of Port7 to "1" LDL #0Eh; SEPL ; P7.2 ← 1 STACK POINTER (SP) Stack pointer is a 4-bit register which stores the present stack level number. Before using stack, user must set the SP value first, CPU will not initiate the SP value after reset condition . When a new subroutine is accepted, the SP will be decreased one automatically, in another word, if returning from a subroutine, the SP will be increased one . The data transfer between ACC and SP is by instruction of "LDASP" and "STASP". DATA POINTER (DP) Data pointer is a 12-bit register which stores the address of ROM can indicate the ROM code data specified by user (refer to data ROM). CLOCK AND TIMING GENERATOR The clock generator is supported by a single clock system, the clock source comes from crystal (resonator or RC oscillation is decided by mask option . the working frequency range is 32 K Hz to 5 MHz depending on the working voltage. CLOCK AND TIMING GENERATOR STRUCTURE The clock generator connects outside compoments ( crystal or resonator by XIN and XOUT pin for crystal osc type, Resistor and capacitor by CLK pin for RC osc type, these two type is decided by mask option ). the clock generator generates a basic system clock "fc". When CPU sleeping, the clock generator will be stoped until the sleep condition released. The system clock control generates 4 basic phase signals ( S1, S2, S3, S4 ) and system clock . sleep XIN/CLK XOUT clock generator System clock control fc System clock S1 S2 S3 S4 Mask option Mask option for choose Crystal or RC oscillation |
Similar Part No. - EM73201 |
|
Similar Description - EM73201 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |