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COREPCI-XX Datasheet(PDF) 3 Page - Actel Corporation |
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COREPCI-XX Datasheet(HTML) 3 Page - Actel Corporation |
3 / 42 page CorePCI v5.41 v4.0 3 CorePCI Device Requirements Performance requirements and bus size both drive device selection. Table 1 summarizes the device requirements. A typical 64-bit PCI system requires at least 200 I/Os. Table 4 on page 5 shows typical pin counts. The actual number of I/O pins depends on the user backend interface. The table assumes the complete backend interface is connected to I/O pins rather than internal logic. Some applications such as PCI-UART target could only require one backend I/O pin. Table 1 and Table 2 on page 4 are summaries of the minimum device requirements for various PCI size/performance options. In order to meet the PCI timing requirements for output valid (6 ns for 66 MHz, 11 ns for 33 MHz) and input setup (3 ns for 66 MHz, 7 ns for 33 MHz) times, the speed grades shown in Table 1 must be used. The RTSX-S, ProASIC, and ProASICPLUS families should only be employed for 32-bit/ 33 MHz PCI applications. Table 1 • Supported Devices Family PCI Voltage Smallest Device Commercial Industrial Military 33 MHz 32-bit SXA 3.3 & 5.0 A54SX16A STD STD STD RTSX-S 3.3 & 5.0 RT54SX32S –1 –1 –1 AX 3.3 AX125 STD STD STD RTAX-S 3.3 RTAX250S STD –1 –1 APA 3.3 APA075 STD STD STD ProASIC3/E 3.3 A3P125 STD STD STD 33 MHz 64-Bit SXA 3.3 & 5.0 A54SX16A STD STD STD RTSX-S 3.3 & 5.0 RT54SX32S N/A N/A N/A AX 3.3 AX125 STD STD STD RTAX-S 3.3 RTAX 250S –1 –1 –1 APA 3.3 APA075 N/A N/A N/A ProASIC3/E 3.3 A3P125 STD STD STD 66 MHz 32-Bit SXA 3.3 & 5.0 A54SX16A –3 –3 N/A RTSX-S 3.3 & 5.0 RT54SX32S N/A N/A N/A AX 3.3 AX125 –1 –1 O/R RTAX-S 3.3 RTAX1000S N/A N/A O/R APA 3.3 APA075 N/A N/A N/A ProASIC3/E 3.3 A3P125 -2 -2 N/A 66 MHz 64-Bit SXA 3.3 & 5.0 A54SX16A –3 –3 N/A RTSX-S 3.3 & 5.0 RT54SX32S N/A N/A N/A AX 3.3 AX125 –1 –1 O/R RTAX-S 3.3 RTAX1000S N/A N/A O/R APA 3.3 APA075 N/A N/A N/A ProASIC3/E 3.3 A3P125 -2 -2 N/A Notes: 1. Required speed grades based on Libero design flows. 2. N/A indicates device not supported. 3. All packages are supported. 4. O/R indicates on request. |
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