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PSD833F2 Datasheet(PDF) 26 Page - STMicroelectronics

Part # PSD833F2
Description  Flash in-system programmable (ISP) peripherals
PDF  128 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD833F2 Datasheet(HTML) 26 Page - STMicroelectronics

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Detailed operation
PSD8XXFX
26/128
Doc ID 7833 Rev 7
6
Detailed operation
As shown in Figure 4, 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.
6.1
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 originate from the Decode PLD (DPLD) and are
user-defined in PSDsoft Express.
Table 9.
Memory block size and organization
Sector
number
Primary Flash memory
Secondary Flash
memory
SRAM
Sector size
(Kbytes)
Sector
select
signal
Sector size
(Kbytes)
Sector
select
signal
SRAM size
(Kbytes)
SRAM
select
signal
0
32
FS0
16
CSBOOT0
256
RS0
1
32
FS1
16
CSBOOT1
2
32
FS2
16
CSBOOT2
3
32
FS3
16
CSBOOT3
432
FS4
532
FS5
632
FS6
732
FS7
Total
512
8 sectors
64
4 sectors
256
Obsolete
Product(s)
- Obsolete
Product(s)



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