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PSD813F2 Folha de dados(PDF) 19 Page - STMicroelectronics

Nome de Peças PSD813F2
Descrição Electrónicos  Flash In-System Programmable (ISP) Peripherals for 8-bit MCUs, 5V
PDF  110 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD813F2 Folha de dados(HTML) 19 Page - STMicroelectronics

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PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2
DETAILED OPERATION
As shown in Figure 5., page 14, the PSD consists
of six major types of functional blocks:
■
Memory Blocks
■
PLD Blocks
■
MCU Bus Interface
■
I/O Ports
■
Power Management Unit (PMU)
■
JTAG Interface
The functions of each block are described in the
following sections. Many of the blocks perform
multiple functions, and are user configurable.
Memory Blocks
The PSD has the following memory blocks:
–
Primary Flash memory
–
Optional Secondary Flash memory
–
Optional SRAM
The Memory Select signals for these blocks origi-
nate from the Decode PLD (DPLD) and are user-
defined in PSDsoft Express.
Table 8. Memory Block Size and Organization
Primary Flash Memory
Secondary Flash Memory
SRAM
Sector
Number
Sector Size
(Bytes)
Sector Select
Signal
Sector Size
(Bytes)
Sector Select
Signal
SRAM Size
(Bytes)
SRAM Select
Signal
0
32K
FS0
16K
CSBOOT0
256K
RS0
1
32K
FS1
16K
CSBOOT1
2
32K
FS2
16K
CSBOOT2
3
32K
FS3
16K
CSBOOT3
4
32K
FS4
5
32K
FS5
6
32K
FS6
7
32K
FS7
Total
512K
8 Sectors
64K
4 Sectors
256K



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