ZPSD511B1C15J STMicroelectronics, ZPSD511B1C15J Datasheet - Page 44
ZPSD511B1C15J
Manufacturer Part Number
ZPSD511B1C15J
Description
Manufacturer
STMicroelectronics
Datasheet
1.ZPSD511B1C15J.pdf
(153 pages)
Specifications of ZPSD511B1C15J
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Supplier Unconfirmed
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I/O Ports
(Cont.)
Table 11. Operating Modes of the I/O Ports
The following table summarizes the operating modes of the I/O ports. Not all functions are
available to every port.
9.3.7 Alternate Function In
This mode is per-pin configurable and enables the user to define the pins in Port E to
perform Alternate function. Alternate Function includes inputs to Counter/Timers and APD
clock.
9.3.8 Peripheral I/O
This mode enables the microcontroller to read or write to a peripheral though Port A.
When there is no read/write operation, Port A is tri-stated. One of the applications of
Peripheral I/O is in a DMA based design.
9.3.9 Open Drain Outputs
This mode enables the user to configure Port C and D pins as open drain outputs. CMOS
output is the default configuration. Writing “1” to the corresponding bit in the Open Drain
Register changes the pin to open drain output.
*
For external decoding. Cannot be latched by ALE.
Standard MCU I/O
PLD I/O
Address Out
Address In
Data Port
Special Function Out
Alternate Function In
Peripheral I/O
Open Drain
Configuration
1. Select input functions in PSD configuration
2. PSD compiler assigns pins for the selected function.
Configuration
1. Declare the pins used as Peripheral I/O in the ABEL file.
2. Write logic equations for PSEL0 and PSEL1.
3. Write a “1” to the PIO bit in the VM Register to activate the Peripheral I/O operation.
See the section on Peripheral I/O for a detailed description.
Port Mode
Port A
Yes
Yes
Yes
Yes
Yes
Yes
Port B
Yes
Yes
Yes
Yes
Yes
*
Input Only
Port C
Yes
Yes
Yes
Yes
Yes
*
Input Only
Port D
Yes
Yes
Yes
Yes
Yes
*
PSD5XX Family
Port E
Yes
Yes
Yes
Yes
Yes
Yes
*
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