DSM2150F5V STMicroelectronics, DSM2150F5V Datasheet - Page 44

• Manufacturer Part Number: DSM2150F5V
• Description: DSM (Digital Signal Processor System Memory) for Analog Devices DSPs (3.3V Supply)
• Manufacturer: STMicroelectronics

DSM2150F5V
Ports A, B, and C – Functionality and Structure
Ports A and B have similar functionality and struc-
ture, as shown in Figure19. The two ports can be
configured to perform one or more of the following
functions:
Figure 19. Port A, B, and C Structure
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MCU I/O Mode
CPLD Output – Macrocells McellA7-McellA0
can be connected to Port A. McellB7-McellB0
can be connected to Port B.
MCELLA7-MCELLA0 (Port A)
MCELLB7-MCELLB0 (Port B)
Ext.CS (Port C)
WR
WR
ENABLE PRODUCT TERM ( .OE )
CPLD- INPUT
DIR Register
DATA OUT
READ MUX
Register
D
D
D
B
P
Q
Q
DATA OUT
DATA IN
DPLD Output - External Chip Select (ECS7-
ECS0) can be connected to Port C.
CPLD Input – Via the Input Macrocells (IMC).
Open Drain/Slew Rate – pins PC7-PC0 can be
configured to fast slew rate. Pins PA7-PA0,
PB7-PB0, and PG7-PB0 and can be
configured to Open Drain Mode.
OUTPUT
MUX
ENABLE OUT
MACROCELL
INPUT
PORT Pin
AI04936B