参数资料
型号: UPSD3233A-24T6T
厂商: 意法半导体
英文描述: Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
中文描述: 闪存可编程系统设备与8032微控制器核心和64Kbit SRAM的
文件页数: 119/176页
文件大小: 1081K
代理商: UPSD3233A-24T6T
119/176
μ
PSD323X
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 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 thePage 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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