DSM2190F4 STMicroelectronics, DSM2190F4 Datasheet - Page 33

• Manufacturer Part Number: DSM2190F4
• Description: DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-2191 DSPs (3.3V Supply)
• Manufacturer: STMicroelectronics

Table 16. Drive Register Pin Assignment
Note: 1. NA = Not Applicable.
Figure 20. Port B Structure
Port B – Functionality and Structure
Port B can be configured to perform one or more
of the following functions:
Port B
Port C
Port D
Register
MCU I/O Mode
CPLD Output – Macrocells McellAB7-McellAB0
can be connected to Port B. McellBC7-
McellBC0 can be connected to Port B or Port C.
Drive
Open
Drain
Open
Drain
NA
MACROCELL OUTPUTS
ENABLE PRODUCT TERM ( .OE )
WR
WR
1
Bit 7
Open
Drain
Open
Drain
NA
CPLD -INPUT
1
DATA OUT
Bit 6
READ MUX
DIR REG.
D
D
REG.
P
D
B
Q
Q
Open
Drain
Open
Drain
NA
1
Bit 5
Open
Drain
Open
Drain
NA
Bit 4
1
DATA OUT
DATA IN
CPLD Input – Via the Input Macrocells (IMC).
Open Drain/Slew Rate – pins PB3-PB0 can be
configured to fast slew rate, pins PB7-PB4 can
be configured to Open Drain Mode.
Slew
Rate
Open
Drain
NA
1
Bit 3
OUTPUT
SELECT
OUTPUT
MUX
Open
Drain
Slew
Rate
Slew
Rate
ENABLE OUT
Bit 2
Macrocell
Input
Slew
Rate
Open
Drain
Slew
Rate
Bit 1
DSM2190F4
Slew
Rate
Open
Drain
Slew
Rate
Bit 0
AI04906B
PORT B
PIN
33/61