PSD4235G2V-10U STMICROELECTRONICS [STMicroelectronics], PSD4235G2V-10U Datasheet - Page 37
PSD4235G2V-10U
Manufacturer Part Number
PSD4235G2V-10U
Description
Flash In-System Programmable (ISP) Peripherals for 16-bit MCUs
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.PSD4235G2V-10U.pdf
(100 pages)
- Current page: 37 of 100
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PAGE REGISTER
The 8-bit Page Register increases the addressing
capability of the MCU by a factor of up to 256. The
contents of the register can also be read by the
MCU. The outputs of the Page Register (PGR0-
PGR7) are inputs to the DPLD decoder and can be
included
CSBOOT0-CSBOOT3), and SRAM Select (RS0)
equations.
If memory paging is not needed, or if not all eight
page register bits are needed for memory paging,
Figure 11. Page Register
MEMORY ID REGISTERS
The 8-bit “Read only” Memory Status Registers
are included in the CSIOP space. The user can
determine the memory configuration of the PSD
device by reading the Memory ID0 and Memory
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
in
the
Sector
Select
RESET
R /W
D 0 - D 7
(FS0-FS15,
D0
D1
D2
D3
D4
D5
D6
D7
REGISTER
PAGE
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
PGR0
PGR1
PGR2
PGR3
PGR4
PGR5
PGR6
PGR7
these bits may be used in the CPLD for general
logic. See Application Note AN1154 .
Table 22, page 22 and Figure 11 show the Page
Register. The eight flip-flops in the register are
connected to the internal data bus (D0-D7). The
MCU can write to or read from the Page Register.
The Page Register can be accessed at address lo-
cation CSIOP + E0h.
ID1 registers. The content of the registers is de-
fined as shown in Table 26, page 24 and Table 27,
page 24.
DPLD
CPLD
AND
PLD
INTERNAL
SELECTS
AND LOGIC
PSD4256G6V
AI02871B
37/100
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