PSD824F3V View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
PSD824F3V Datasheet PDF : 93 Pages
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PSD4000 Series
The
PSD4000
Functional
Blocks
(cont.)
Preliminary Information
9.4.5 Ports A, B and C – Functionality and Structure
Ports A and B have similar functionality and structure, as shown in Figure 21. The two
ports can be configured to perform one or more of the following functions:
t MCU I/O Mode
t GPLD Output – Combinatorial PLD outputs.
t PLD Input – Input to the PLDs.
t Address In – Additional high address inputs may be latched by ALE.
t 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.
Figure 21. Port A, B and C
DATA OUT
REG.
DQ
WR
GPLD OUTPUT
READ MUX
P
D
B
DATA OUT
OUTPUT
MUX
DATA IN
OUTPUT
SELECT
PORT PIN
DIR REG.
DQ
WR
PLD INPUT
52
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