PSD301-B-15J STMICROELECTRONICS [STMicroelectronics], PSD301-B-15J Datasheet - Page 2

• Manufacturer Part Number: PSD301-B-15J
• Description: Low Cost Field Programmable Microcontroller Peripherals
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

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Introduction ...........................................................................................................................................................1
Notation ................................................................................................................................................................2
Key Features ........................................................................................................................................................4
PSD3XX Family Feature Summary ......................................................................................................................5
Partial Listing of Microcontrollers Supported ........................................................................................................6
Applications ..........................................................................................................................................................6
ZPSD Background ................................................................................................................................................6
7.1
Operating Modes (MCU Configurations) ............................................................................................................10
Programmable Address Decoder (PAD).............................................................................................................12
I/O Port Functions ...............................................................................................................................................15
10.1
10.2
10.3
10.4
10.5
PSD Memory ......................................................................................................................................................21
11.1
11.2
11.3
11.4
Control Signals ...................................................................................................................................................22
12.1
12.2
12.3
12.4
12.5
12.6
Program/Data Space and the 8031 ....................................................................................................................26
Systems Applications..........................................................................................................................................27
Security Mode .....................................................................................................................................................30
Power Management............................................................................................................................................30
16.1
16.2
16.3
16.4
16.5
16.6
Calculating Power ...............................................................................................................................................34
Integrated Power Management
CSIOPORT Registers..............................................................................................................................15
Port A (PA0-PA7).....................................................................................................................................16
10.2.1 Port A (PA0-PA7) in Multiplexed Address/Data Mode................................................................16
10.2.2 Port A (PA0-PA7) in Non-Multiplexed Address/Data Mode ........................................................17
Port B (PB0-PB7).....................................................................................................................................18
10.3.1 Port B (PA0-PA7) in Multiplexed Address/Data Mode................................................................18
10.3.2 Port B (PA0-PA7) in Non-Multiplexed Address/Data Mode ........................................................19
Port C (PC0-PC2) ....................................................................................................................................20
ALE/AS Input Pin .....................................................................................................................................20
EPROM....................................................................................................................................................21
SRAM (Optional)......................................................................................................................................21
Page Register (Optional) .........................................................................................................................21
Programming and Erasure.......................................................................................................................21
ALE or AS ................................................................................................................................................22
WR or R/W...............................................................................................................................................22
RD/E/DS (DS option not available on 3X1 devices) ................................................................................22
PSEN or PSEN ........................................................................................................................................22
A19/CSI ...................................................................................................................................................23
Reset Input ..............................................................................................................................................24
CSI Input..................................................................................................................................................30
CMiser Bit ................................................................................................................................................30
Turbo Bit (ZPSD Only).............................................................................................................................31
Number of Product Terms in the PAD Logic............................................................................................31
Composite Frequency of the Input Signals to the PAD Logic..................................................................32
Loading on I/O Pins .................................................................................................................................33
PSD3XXR
Low Cost Microcontroller Peripherals
PSD3XX
TM
PSD3XX Family
Operation .............................................................................................7
Table of Contents
ZPSD3XXR
ZPSD3XX
ZPSD3XXRV
ZPSD3XXV