參數(shù)資料
型號: UPD70F3134AYGJ-UEN
廠商: NEC Corp.
英文描述: 32-Bit Single-Chip Microcontrollers
中文描述: 32位單芯片微控制器
文件頁數(shù): 59/99頁
文件大?。?/td> 528K
代理商: UPD70F3134AYGJ-UEN
CHAPTER 4 CONFIGURATION EXAMPLES OF FPGA INTEGRATION
Application Note U17121EJ1V1AN
59
4.4 FPGA Top Pin Functions
The pin information when integrating the PCI host bridge macro with an FPGA is shown below.
4.4.1 CPU bus slave interface pins
Pin Name
I/O
Function
VBRESETZ
Input
System reset input
CSZ6
Input
PCI host bridge chip select input
RA0 to RA25
I/O
CPU address I/O
RD0 to RD31
I/O
CPU data I/O
BENZ0 to BENZ3
Input
CPU data byte enable input
WRZ
Input
CPU data write enable input
RDZ
Input
CPU data read enable input
WAITZ
Output
CPU data wait output
INT0
Output
PCI host bridge interrupt output
4.4.2 SDRAM bus interface pins
Pin Name
I/O
Function
HLDREQZ
Output
SDRAM bus hold request output
HLDACKZ
Input
SDRAM bus hold acknowledge input
SDCLK
Input
SDRAM clock input
SDCKE
Output
SDRAM clock enable output
SDCS
Output
SDRAM chip select output
SDRASZ
Output
SDRAM row address strobe output
SDCASZ
Output
SDRAM column address strobe output
SDWEZ
Output
SDRAM read/write output
DQM0 to DQM3
Output
SDRAM output disable output
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