參數(shù)資料
型號: PSD4235G2V-20UT
廠商: 意法半導(dǎo)體
英文描述: Flash In-System Programmable ISP Peripherals For 16-bit MCUs 3.3V Supply
中文描述: Flash在系統(tǒng)可編程ISP的外設(shè)的16位MCU 3.3V電源
文件頁數(shù): 32/93頁
文件大?。?/td> 503K
代理商: PSD4235G2V-20UT
Preliminary Information
PSD4000 Series
29
RESET
DATA BUS
R/W
D0
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
D1
D2
D3
D4
D5
D6
D7
PAGE
REGISTER
PGR0
PGR1
PGR2
PGR3
DPLD
AND
GPLD
INTERNAL
SELECTS
AND LOGIC
FLASH
PLD
PGR4
PGR5
PGR6
PGR7
Figure 8. Page Register
The
PSD4000
Functional
Blocks
(cont.)
9.1.4 Page Register
The eight bit Page Register increases the addressing capability of the microcontroller by a
factor of up to 256. The contents of the register can also be read by the microcontroller.
The outputs of the Page Register (PGR0-PGR7) are inputs to the PLD decoder and
can be included in the Flash Memory, secondary Flash memory, and SRAM chip select
equations.
If memory paging is not needed, or if not all 8 page register bits are needed for memory
paging, then these bits may be used in the PLD for general logic. See Application
Notes.
Figure 8 shows the Page Register. The eight flip flops in the register are connected to the
internal data bus. The microcontroller can write to or read from the Page Register. The
Page Register can be accessed at address location CSIOP + E0h.
相關(guān)PDF資料
PDF描述
PSD4235G2V-C-70J Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235G2V-C-70JI Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235G2V-C-70M Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235G2V-C-70MI Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235G2V-C-70U Flash In-System-Programmable Peripherals for 16-Bit MCUs
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