參數(shù)資料
型號(hào)： uPSD3412C-40U6T
廠商： 意法半導(dǎo)體
英文描述： 320 x 240 pixel format, CFL backlight available with power harness
中文描述： 閃存可編程系統(tǒng)設(shè)備與8032微控制器核心和16Kbit SRAM的
文件頁數(shù)： 94/152頁
文件大小： 1558K
代理商： UPSD3412C-40U6T
UPSD3212C, UPSD3212CV
94/152
Memory Select Configuration in Program and
Data Spaces.
The MCU Core has separate ad-
dress spaces for Program memory and Data
memory. Any of the memories within the PSD
MODULE can reside in either space or both spac-
es. This is controlled through manipulation of the
VM Register that resides in the CSIOP space.
The VM Register is set using PSDsoft Express to
have an initial value. It can subsequently be
changed by the MCU so that memory mapping
can be changed on-the-fly.
For example, you may wish to have SRAM and pri-
mary Flash memory in the Data space at Boot-up,
and secondary Flash memory in the Program
space at Boot-up, and later swap the primary and
secondary Flash memories. This is easily done
with the VM Register by using PSDsoft Express
Configuration to configure it for Boot-up and hav-
ing the MCU change it when desired. Table 66 de-
scribes the VM Register.
Table 66. VM Register
Bit 7
PIO_EN
Bit 6
Bit 5
Bit 4
Primary
FL_Data
Bit 3
Secondary Data
Bit 2
Primary
FL_Code
Bit 1
Secondary Code
Bit 0
SRAM_Code
0 = disable
PIO Mode
not used
not used
0 = RD
can’t
access
Flash
memory
0 = RD can’t
access Secondary
Flash memory
0 = PSEN
can’t
access
Flash
memory
0 = PSEN can’t
access Secondary
Flash memory
0 = PSEN
can’t
access
SRAM
1= enable
PIO Mode
not used
not used
1 = RD
access
Flash
memory
1 = RD access
Secondary Flash
memory
1 = PSEN
access
Flash
memory
1 = PSEN access
Secondary Flash
memory
1 = PSEN
access
SRAM
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UPSD3422EV-40T6 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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