 |
Motore di ricerca datesheet componenti elettronici |
|
|
Motore di ricerca datesheet componenti elettronici |
|
HD404369F Scheda tecnica(PDF) 95 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
HD404369F Scheda tecnica(HTML) 95 Page - Renesas Technology Corp |
|
|
95 / 117 page  HD404369 Series 93 Programming the Built-In PROM The MCU’s built-in PROM is programmed in PROM mode. PROM mode is set by pulling RESET, M 0, and M 1 low, as shown in figure 79. In PROM mode, the MCU does not operate, but it can be programmed in the same way as any other commercial 27256-type EPROM using a standard PROM programmer and a 100-to-28-pin socket adapter. Recommended PROM programmers and socket adapters are listed in table 29. Since an HMCS400-series instruction is ten bits long, the HMCS400-series MCU has a built-in conversion circuit to enable the use of a general-purpose PROM programmer. This circuit splits each instruction into five lower bits and five upper bits that are read from or written to consecutive addresses. This means that if, for example, 16 kwords of built-in PROM are to be programmed by a general-purpose PROM programmer, a 32-kbyte address space ($0000–$7FFF) must be specified. Control signals Address bus Data bus VCC GND VPP O7–O0 O7 O6 O5 O4–O0 CE, OE A14–A0 O4–O0 M 0 M 1 RESET VCC GND VPP HD407A4369 PROM mode pins Socket adapter PROM programmer Figure 79 PROM Mode Connections |
|
Link URL |
| Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | Collegamento alla scheda tecnica | scambio Link | Ricerca produttore 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 |
Italian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
