f
FROM PTM
0−16
PRODUCT
TERMS
Ultra37000 CPLD Family
0
1
C25
0
1
2
O
3
4
C0 C1 C24
1
0
I/O MACROCELL
0
P
O
D/T/L Q 1
R
DECODE
C2 C3
0
O
1
C4
FAST
SLOW
SLEW
C26
“0”
0
“1”
1
2
O
3
C6 C5
I/O CELL
FROM PTM
0−16
PRODUCT
TERMS
0
1
C25
0
1
2
Q
3
4
C0 C1 C24
1
0
BURIED MACROCELL
0
O
1
C7
0
O
P
D/T/L Q 1
R
DECODE
C2 C3
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)
Figure 2. I/O and Buried Macrocells
INPUT PIN
FROM CLOCK
POLARITY MUXES
0
1
2
O
3
D
Q
D
Q
C10 C11
DQ
LE
Figure 3. Input Macrocell
OE0 OE1
0
1
O TO PIM
2
3
C12 C13
Document #: 38-03007 Rev. *C
Page 6 of 62