UPSD3233 STMicroelectronics, UPSD3233 Datasheet - Page 120
UPSD3233
Manufacturer Part Number
UPSD3233
Description
Flash Programmable System Devices with 8032 Microcontroller Core
Manufacturer
STMicroelectronics
Datasheet
1.UPSD3233.pdf
(175 pages)
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UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
Figure 58. PLD Diagram
Note: 1. Ports A is not available in the 52-pin package
120/175
DATA
BUS
73
73
DIRECT MACROCELL INPUT TO MCU DATA BUS
16
20
2
8
OUTPUT MACROCELL FEEDBACK
DECODE PLD
INPUT MACROCELL & INPUT PORTS
REGISTER
PAGE
CPLD
PORT D INPUTS
ALLOC.
PT
8
4
1
1
2
20 INPUT MACROCELL
(PORT A,B,C)
MACROCELL
16 OUTPUT
PRIMARY FLASH MEMORY SELECTS
SECONDARY NON-VOLATILE MEMORY SELECTS
SRAM SELECT
CSIOP SELECT
PERIPHERAL SELECTS
DIRECT MACROCELL ACCESS FROM MCU DATA BUS
MACROCELL
ALLOC.
EXTERNAL CHIP SELECTS
TO PORT A OR B 1
TO PORT B OR C
TO PORT D
MCELLAB
MCELLBC
AI06600
8
8
2