Ultra37000 CPLD Family
f
I/O MACROCELL
FAST
FROM PTM
0
1
SLEW
SLOW
0−16
PRODUCT
TERMS
C25
C26
I/O CELL
0
1
O
O
0
1
P
D/T/L
Q
0
1
2
3
4
“0”
“1”
0
1
2
3
O
R
C4
O
DECODE
C2 C3
C0 C1C24
C6 C5
1
0
BURIED MACROCELL
FROM PTM
0
1
0−16
PRODUCT
TERMS
C25
0
1
0
O
O
P
D/T/L
1
Q
0
1
Q
2
3
C7
R
4
DECODE
C2 C3
C0 C1C24
1
0
FEEDBACK TO PIM
FEEDBACK TO PIM
FEEDBACK TO PIM
ASYNCHRONOUS
BLOCK RESET
ASYNCHRONOUS
BLOCK PRESET
4 SYNCHRONOUS CLOCKS (CLK0,CLK1,CLK2,CLK3)
1 ASYNCHRONOUS CLOCK(PTCLK)
OE0
OE1
Figure 2. I/O and Buried Macrocells
INPUT PIN
0
1
O
TO PIM
2
3
D
D
0
1
2
3
Q
Q
Q
FROM CLOCK
POLARITY MUXES
O
C12 C13
C10 C11
D
LE
Figure 3. Input Macrocell
Document #: 38-03007 Rev. *C
Page 6 of 62
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