參數(shù)資料
型號: uPSD3233
廠商: 意法半導體
英文描述: Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
中文描述: 閃存可編程系統(tǒng)器件與8032微控制器內(nèi)核(嵌入高速“8032微控制器核”的閃存型可編程系統(tǒng)器)
文件頁數(shù): 107/164頁
文件大小: 1133K
代理商: UPSD3233
107/164
μ
PSD3200 FAMILY
DRAFT(Thursday 20 June 2002, 13:15).
Page Register
The 8-bit Page Register increases the addressing
capability ofthe MCUCore bya factorof upto 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 in the Sector Select (FS0-
FS7, CSBOOT0-CSBOOT3), and SRAM Select
(RS0) equations.
If memory paging is notneeded, or if not all 8 page
register bits are needed for memory paging, then
these bits may be used in the CPLD for general
logic.
Figure 54 shows 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 thePage Register. The Page Register can be
accessed at address location CSIOP + E0h.
Figure 54. Page Register
RESET
D0-D7
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
CPLD
INTERNAL PSD MODULE
SELECTS
AND LOGIC
PLD
PGR4
PGR5
PGR6
PGR7
AI05799
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