參數(shù)資料
型號(hào): PSD4235G2-A-15U
廠商: STMICROELECTRONICS
元件分類(lèi): 微控制器/微處理器
英文描述: 4M X 1 FLASH, 52 I/O, PIA-GENERAL PURPOSE, PQFP80
封裝: PLASTIC, TQFP-80
文件頁(yè)數(shù): 8/104頁(yè)
文件大?。?/td> 1114K
代理商: PSD4235G2-A-15U
Obsolete
Product(s)
- Obsolete
Product(s)
PSD4135G2, PSD4135G2V
Description
Doc ID 7838 Rev 2
1.2.3
Separate program and data space
How can I write to Flash memory while it resides in “program” space during field firmware
updates? My 80C51XA won’t allow it. The Flash PSD provides means to “reclassify” Flash
memory as “data” space during IAP, then back to “program” space when complete.
1.2.4
PSDsoft Express
PSDsoft Express, a software development tool from ST, guides you through the design
process step-by-step making it possible to complete an embedded MCU design capable of
ISP/IAP in just hours. Select your MCU and PSDsoft Express takes you through the
remainder of the design with point and click entry, covering PSD selection, pin definitions,
programmable logic inputs and outpus, MCU memory map definition, ANSI-C code
generation for your MCU, and merging your MCU firmware with the PSD design. When
complete, two different device programmers are supported directly from PSDsoft Express:
FlashLINK (JTAG) and PSDpro.
Figure 2.
Logic diagram
AI04916
16
AD0-AD15
PF0-PF7
VCC
PSD4xxxGx
VSS
8
PG0-PG7
8
PB0-PB7
8
PA0-PA7
8
3
CNTL0-
CNTL2
RESET
PD0-PD3
4
PC0-PC7
8
PE0-PE7
8
相關(guān)PDF資料
PDF描述
PSD4235G2-A-20UI 4M X 1 FLASH, 52 I/O, PIA-GENERAL PURPOSE, PQFP80
PSD813F2A-15JI 128K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQCC52
PSD834F2VA-15MI 256K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP52
PSD854F2A-90MT 256K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP52
PSD854F2A-90UT 256K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP64
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