Device Architecture
2-24
Revision 4
Notes:
2. Many specific INBUF macros support the wide variety of single-ended and differential I/O standards for the Fusion family.
Figure 2-19 Fusion CCC Options: Global Buffers with the PLL Macro
Table 2-11 Available Selections of I/O Standards within CLKBUF and CLKBUF_LVDS/LVPECL Macros
CLKBUF Macros
CLKBUF_LVCMOS5
CLKBUF_LVCMOS331
CLKBUF_LVCMOS18
CLKBUF_LVCMOS15
CLKBUF_PCI
CLKBUF_LVDS2
CLKBUF_LVPECL
Notes:
1. This is the default macro. For more details, refer to the IGLOO, ProASIC3, SmartFusion and Fusion Macro Library
Guide.
2. The B-LVDS and M-LVDS standards are supported with CLKBUF_LVDS.
PADN
PADP
Y
PAD
Y
Input LVDS/LVPECL Macro
INBUF2 Macro
GLA
or
GLA and (GLB or YB)
or
GLA and (GLC or YC)
or
GLA and (GLB or YB) and
(GLC or YC)
Clock Source
Clock Conditioning
Output
OADIVHALF
OADIV[4:0]
OAMUX[2:0]
DLYGLA[4:0]
OBDIV[4:0]
OBMUX[2:0]
DLYYB[4:0]
DLYGLB[4:0]
OCDIV[4:0]
OCMUX[2:0]
DLYYC[4:0]
DLYGLC[4:0]
FINDIV[6:0]
FBDIV[6:0]
FBDLY[4:0]
FBSEL[1:0]
XDLYSEL
VCOSEL[2:0]
CLKA
EXTFB
OADIVRST
GLA
LOCK
GLB
YB
GLC
YC