Electronic Components Datasheet Search |
|
COP8CCE9HLQ9 Datasheet(PDF) 6 Page - National Semiconductor (TI) |
|
|
COP8CCE9HLQ9 Datasheet(HTML) 6 Page - National Semiconductor (TI) |
6 / 75 page 1.0 General Description (Continued) examples. In many cases, the instruction set can simulta- neously execute as many as three functions with the same single-byte instruction. JID: (Jump Indirect); Single byte instruction decodes exter- nal events and jumps to corresponding service routines (analogous to “DO CASE” statements in higher level lan- guages). LAID: (Load Accumulator-Indirect); Single byte look up table instruction provides efficient data path from the program memory to the CPU. This instruction can be used for table lookup and to read the entire program memory for checksum calculations. RETSK: (Return Skip); Single byte instruction allows return from subroutine and skips next instruction. Decision to branch can be made in the subroutine itself, saving code. AUTOINC/DEC: (Auto-Increment/Auto-Decrement); These instructions use the two memory pointers B and X to effi- ciently process a block of data (simplifying “FOR NEXT” or other loop structures in higher level languages). 1.6.4 Bit-Level Control Bit-level control over many of the microcontroller’s I/O ports provides a flexible means to ease layout concerns and save board space. All members of the COP8 family provide the ability to set, reset and test any individual bit in the data memory address space, including memory-mapped I/O ports and associated registers. 1.6.5 Register Set Three memory-mapped pointers handle register indirect ad- dressing and software stack pointer functions. The memory data pointers allow the option of post-incrementing or post- decrementing with the data movement instructions (LOAD/ EXCHANGE). And 15 memory-mapped registers allow de- signers to optimize the precise implementation of certain specific instructions. 1.7 PACKAGING/PIN EFFICIENCY Real estate and board configuration considerations demand maximum space and pin efficiency, particularly given today’s high integration and small product form factors. Microcon- troller users try to avoid using large packages to get the I/O needed. Large packages take valuable board space and increase device cost, two trade-offs that microcontroller de- signs can ill afford. The COP8 family offers a wide range of packages and does not waste pins. www.national.com 6 |
Similar Part No. - COP8CCE9HLQ9 |
|
Similar Description - COP8CCE9HLQ9 |
|
|
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 |