pll1.pin

PLL是数字锁相环设计源程序, 其中, Fi是输入频率(接收数据), Fo(Q5)是本地输出频率. 目的是从输入数据中提取时钟信号(Q5), 其频率与数据速率一致, 时钟上升沿锁定

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N.C. = No Connect. This pin has no internal connection to the device.
VCCINT = Dedicated power pin, which MUST be connected to VCC (2.5 volts).
VCCIO1 = Dedicated power pin, which MUST be connected to VCC (3.3 volts).
VCCIO2 = Dedicated power pin, which MUST be connected to VCC (3.3 volts).
GND = Dedicated ground pin or unused dedicated input, which MUST be connected to GND.
GND* = These I/O pins can either be left unconnected or connected to GND. Connecting these pins to GND will improve the device's immunity to noise.
RESERVED = Unused I/O pin, which MUST be left unconnected.

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CHIP "pll1" ASSIGNED TO AN EPM7032BLC44-3
GND                              : 1
fosc                             : 2
VCCINT                           : 3
reset                            : 4
GND*                             : 5
GND*                             : 6
TDI                              : 7
GND*                             : 8
GND*                             : 9
GND                              : 10
GND*                             : 11
GND*                             : 12
TMS                              : 13
GND*                             : 14
VCCIO1                           : 15
GND*                             : 16
GND*                             : 17
GND*                             : 18
GND*                             : 19
GND*                             : 20
GND*                             : 21
GND                              : 22
VCCINT                           : 23
GND*                             : 24
GND*                             : 25
GND*                             : 26
GND*                             : 27
ahead                            : 28
lag                              : 29
GND                              : 30
GND*                             : 31
TCK                              : 32
GND*                             : 33
GND*                             : 34
VCCIO2                           : 35
GND*                             : 36
GND*                             : 37
TDO                              : 38
GND*                             : 39
GND*                             : 40
fo                               : 41
GND                              : 42
fi                               : 43
GND                              : 44