 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
M68300 Datasheet(PDF) 89 Page - Motorola, Inc |
|
||||||||||||||||||||||||||||||
M68300 Datasheet(HTML) 89 Page - Motorola, Inc |
|
|
89 / 962 page  Bus Operation MOTOROLA MC68360 USER’S MANUAL 4-13 Figure 4-7. Word Operand Write Timing (8-Bit Data Port) Figure 4-8 shows the transfer of a long-word operand to an odd address in word-organized memory, which requires three bus cycles. For the first cycle, the SIZx signals specify a long- word transfer, and the address offset (A2–A0) is 001. Since the port width is 16 bits, only the first byte of the long word is transferred. The slave device latches the byte and acknowl- edges the data transfer, indicating that the port is 16 bits wide. When the processor starts the second cycle, the SIZx signals specify that three bytes remain to be transferred with an address offset (A2–A0) of 010. The next two bytes are transferred during this cycle. The pro- cessor then initiates the third cycle, with the SIZx signals indicating one byte remaining to be transferred. The address offset (A2–A0) is now 100; the port latches the final byte, and the operation is complete. Figure 4-9 shows the associated bus transfer signal timing. BYTE WRITE WORD OPERAND WRITE S0 S2 S4 S0 S2 S4 CLKO1 A31–A2 A1 A0 FC3–FC0 SIZ1 SIZ0 R/W AS DS DSACK1 DSACK0 D31–D24 D23–D16 BYTE WRITE D15–D8 D7–D0 OP3 OP2 OP3 OP2 OP3 OP3 OP3 OP3 |
Similar Part No. - M68300 |
|
Similar Description - M68300 |
|
|
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
