參數(shù)資料
型號(hào): 9202
廠商: 意法半導(dǎo)體
英文描述: Flash Programmable System Devices with 8032 Microcontroller Core
中文描述: 閃存可編程系統(tǒng)設(shè)備與8032微控制器內(nèi)核
文件頁數(shù): 118/175頁
文件大小: 1731K
代理商: 9202
UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
118/175
Page Register
The 8-bit Page Register increases the addressing
capability of the MCU Core 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 in the Sector Select (FS0-
FS7, CSBOOT0-CSBOOT3), and SRAM Select
(RS0) 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 CPLD for general
logic.
Figure 57 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 the Page Register. The Page Register can be
accessed at address location CSIOP + E0h.
Figure 57. 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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