PSD833F3A-20UI View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
PSD833F3A-20UI Datasheet PDF : 128 Pages
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Detailed operation
6
Detailed operation
PSD8XXFX
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
Obsolete Product(s) - Obsolete Product(s) 6.1
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 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
Sector size
(Kbytes)
Sector
select
signal
Sector size
(Kbytes)
Sector
select
signal
SRAM
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
4
32
FS4
5
32
FS5
6
32
FS6
7
32
FS7
Total
512
8 sectors
64
4 sectors
256
26/128
Doc ID 7833 Rev 7
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