
PSD835G2
PSD8XX Family
61
9.4.5 Ports A, B and C – Functionality and Structure
Ports A and B have similar functionality and structure, as shown in Figure 26. The two
ports can be configured to perform one or more of the following functions:
J
MCU I/O Mode
J
CPLD Output – Micro
Cells McellA[7:0] can be connected to Port A.
McellB[7:0] can be connected to Port B.
External chip select ECS [7:0] can be connected to Port C.
J
CPLD Input
– Via the input Micro
Cells.
J
Address In – Additional high address inputs using the Input Micro
Cells.
J
Open Drain/Slew Rate – pins PC[7:0]can be configured to fast slew rate,
pins PA[7:0] and PB[7:0] can be configured to Open Drain
Mode.
I
D
R
D
Q
D
Q
W
W
M
M
E
E
R
P
D
B
C
D
I
M
C
E
D
O
S
O
M
P
D
Figure 26. Port A, B and C
The
PSD835G2
Functional
Blocks
(cont.)