PSD412A2 Microcontroller Peripherals Datasheet

PSD412A2 Datasheet, PDF, Equivalent


Part Number

PSD412A2

Description

Low Cost Field Programmable Microcontroller Peripherals

Manufacture

STMicroelectronics

Total Page 30 Pages
Datasheet
Download PSD412A2 Datasheet


PSD412A2
PSD4XX
ZPSD4XX
Low Cost Field Programmable Microcontroller Peripherals
NOT FOR NEW DESIGN
FEATURES SUMMARY
s Single Supply Voltage:
– 5 V±10% for PSD4XX
– 2.7 to 5.5 V for PSD4XX-V
s Up to 1 Mbit of UV EPROM
s Up to 16 Kbit SRAM
s Input Latches
s Programmable I/O ports
s Page Logic
s Programmable Security
Figure 1. Packages
PLDCC68 (J)
CLDCC68 (L)
TQFP68 (U)
January 2002
This is information on a product still in production but not recommended for new designs.
1/3

PSD412A2
PSD4XX Family
PSD4XX/ZPSD4XX
Field-Programmable Microcontroller Peripherals
Table of Contents
1 Introduction ...........................................................................................................................................................1
2 Key Features ........................................................................................................................................................2
3 Notation ................................................................................................................................................................3
4 Zero-Power Background .......................................................................................................................................3
5 Integrated Power ManagementTM Operation ........................................................................................................5
6 Design Flow ..........................................................................................................................................................6
7 PSD4XX Family ....................................................................................................................................................7
8 Table 2. PSD4XX Pin Descriptions......................................................................................................................8
9 The PSD4XX Architecture ..................................................................................................................................10
9.1 The ZPLD Block..........................................................................................................................................10
9.1.1 The PSD4XXA1 ZPLD Block............................................................................................................10
9.1.1.1 The DPLD ..........................................................................................................................12
9.1.1.2 The GPLD ..........................................................................................................................13
9.1.1.3 TPA Macrocell Structure ...................................................................................................13
9.1.1.4 Port B Macrocell Structure .................................................................................................17
9.1.1.5 The ZPLD Power Management..........................................................................................18
9.1.2 The PSD4XXA2 ZPLD Block............................................................................................................22
9.1.2.1 The DPLD ..........................................................................................................................24
9.1.2.2 The GPLD ..........................................................................................................................26
9.1.2.3 Port A Macrocell Structure .................................................................................................26
9.1.2.4 Port B Macrocell Structure .................................................................................................30
9.1.2.5 Port E Macrocell Structure .................................................................................................33
9.1.2.6 The ZPLD Power Management..........................................................................................34
9.2 Bus Interface...............................................................................................................................................37
9.2.1 Bus Interface Configuration ..............................................................................................................37
9.2.2 PSD4XX Interface to a Multiplexed Bus ...........................................................................................38
9.2.3 PSD4XX Interface to Non-Multiplexed Bus ......................................................................................38
9.2.4 Data Byte Enable..............................................................................................................................42
9.2.5 Optional Features .............................................................................................................................43
9.2.6 Bus Interface Examples....................................................................................................................43
9.3 I/O Ports......................................................................................................................................................48
9.3.1 Standard MCU I/O ............................................................................................................................48
9.3.2 PLD I/O ...........................................................................................................................................48
9.3.3 Address Out......................................................................................................................................49
9.3.4 Address In ........................................................................................................................................49
9.3.5 Data Port ..........................................................................................................................................49
9.3.6 Alternate Function In ........................................................................................................................49
9.3.7 Peripheral I/O ...................................................................................................................................50
9.3.8 Open Drain Outputs..........................................................................................................................50
9.3.9 Port Registers...................................................................................................................................51
9.3.10 Port A – Functionality and Structure.................................................................................................54
9.3.11 Port B – Functionality and Structure.................................................................................................54
9.3.12 Port C and Port D – Functionality and Structure ..............................................................................57
9.3.13 Port E – Functionality and Structure.................................................................................................57
9.4 Memory Block .............................................................................................................................................61
9.4.1 EPROM ............................................................................................................................................61
9.4.2 SRAM ...............................................................................................................................................61
i


Features PSD4XX ZPSD4XX Low Cost Field Programma ble Microcontroller Peripherals NOT FOR NEW DESIGN FEATURES SUMMARY s Single Supply Voltage: – 5 V±10% for PSD4XX – 2.7 to 5.5 V for PSD4XX-V s Up to 1 Mbit of UV EPROM s Up to 16 Kbit SRAM s Input Latches s Programmable I/O por ts s Page Logic s Programmable Security Figure 1. Packages PLDCC68 (J) CLDCC6 8 (L) TQFP68 (U) January 2002 This is information on a product still in produ ction but not recommended for new desig ns. 1/3 PSD4XX Family PSD4XX/ZPSD4XX Field-Programmable Microcontroller Peri pherals Table of Contents 1 Introductio n ..................................... ....................................... ....................................... ....................................... .1 2 Key Features ..................... ....................................... ....................................... ....................................... ..............2 3 Notation ............ ................................................................
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