 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
M30222FG Datasheet(PDF) 9 Page - Mitsubishi Electric Semiconductor |
|
||||||||||||||||||||||||||||||
M30222FG Datasheet(HTML) 9 Page - Mitsubishi Electric Semiconductor |
|
|
9 / 237 page  1-10 Under development Specifications in this manual are tentative and subject to change Rev. G Memory MITSUBISHI MICROCOMPUTERS M30222 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Operation of Functional Blocks The M30222 group accommodates certain units in a single chip. These units include ROM and RAM to store instructions and data and the central processing unit (CPU) to execute arithmetic/logic operations. Also included are peripheral units such as timers, serial I/O, D-A converter, DMAC, CRC calculation circuit, A-D converter, LCD, and I/O ports. The following explains each unit. Memory Figure 1.5 is a memory map of the M30222 group. The linear address space of 1M bytes extends from address 0000016 to FFFFF16. From FFFFF16 down is ROM. For example, in the M30222FG-XXXFP, there is 256K bytes of internal ROM from C000016 to FFFFF16. The vector table for fixed interrupts such as the reset and NMI are mapped to FFFDC16 to FFFFF16. The starting address of the interrupt routine is stored here. The address of the vector table for timer interrupts, etc., can be set as desired using the internal register (INTB). See the section on interrupts for details. From 0040016 up is RAM. For example, in the M30222FG-XXXFP, 20K bytes of internal RAM is mapped to the space from 0040016 to 053FF16. In addition to storing data, the RAM also stores the stack used when calling subroutines and when interrupts are generated. The SFR area is mapped to 0000016 to 003FF16. This area accommodates the control registers for periph- eral devices such as I/O ports, A-D converter, serial I/O, and timers, etc. Tables 1.5 to 1.9 show the location of peripheral unit control registers. Any part of the SFR area that is not occupied is reserved and cannot be used for other purposes. Fig. 1.5. Memory Map 0000016 YYYYY16 FFFFF16 0040016 XXXXX16 D000016 Internal ROM area SFR area For details, see Tables 1.5-1.9 Internal RAM area Internal reserved area C000016 053FF16 M30222MG/FG/GP Address XXXXX16 Type No. Address YYYYY 16 FFE0016 FFFDC16 FFFFF16 Undefined instruction Overflow BRK instruction Address match Single step Watchdog timer Reset Special page vector table DBC NMI |
Similar Part No. - M30222FG |
|
Similar Description - M30222FG |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
