psd4235g2 STMicroelectronics, psd4235g2 Datasheet - Page 53
psd4235g2
Manufacturer Part Number
psd4235g2
Description
Flash In-system Programmable Isp Peripherals For 16-bit Mcus 5v Supply
Manufacturer
STMicroelectronics
Datasheet
1.PSD4235G2.pdf
(129 pages)
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PSD4235G2
13.5
Figure 8.
Figure 9.
RD
PSEN
VM REG BIT 3
VM REG BIT 4
VM REG BIT 1
VM REG BIT 2
VM REG BIT 0
80C51XA memory map example
See the Application notes for examples.
8031 memory modules - separate space
8031 memory modules - combined space
DPLD
RD
RS0
CSBOOT0-3
FS0-FS7
PSEN
DPLD
RS0
CSBOOT0-3
FS0-FS7
CS
Memory
Primary
Flash
OE
CS
Memory
Primary
Flash
OE
Secondary
CS
Memory
Flash
OE
RD
Secondary
CS
Memory
Flash
OE
CS
SRAM
Memory Select signals
OE
CS
SRAM
OE
AI02870C
AI02869C
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