W83C553FY-G Nuvoton Technology Corporation of America, W83C553FY-G Datasheet - Page 32

• Manufacturer Part Number: W83C553FY-G
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83C553FY-G

• Lead Free Status / RoHS Status: Compliant

W83C553F
Electrical Specifications
3.11
PCI Memory Write
The Master Memory Write command (C/BE[3:0]# = 7h during the address phase) cycle is used by the W83C553F when
writing to memory. The W83C553F issues a request for the bus and, when granted access, writes one Dword to system
memory. The bus is then released. The data phase in Figure 3-7 takes two clock cycles, as determined by TRDY#.
In slave mode, PCI-to-ISA memory writes and ROM writes are supported.
Figure 3-7. Master Memory Write Timing
WINBOND SYSTEMS LABORATORY
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