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參數(shù)資料
| 型號(hào)： | PSD854F2A-90UT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 256K X 8 FLASH, 27 I/O, PIA-GENERAL PURPOSE, PQFP64 |
| 封裝： | ROHS COMPLIANT, TQFP-64 |
| 文件頁數(shù)： | 116/128頁 |
| 文件大?。?/td> | 1045K |
| 代理商： | PSD854F2A-90UT |
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Programming in-circuit using the JTAG serial interface
PSD8XXFX
Doc ID 7833 Rev 7
Reset (RESET) will prevent or interrupt JTAG operations if the JTAG enable register is used
to enable the JTAG pins.
The PSD supports JTAG In-System-Configuration (ISC) commands, but not Boundary
Scan. The PSDsoft Express software tool and FlashLINK JTAG programming cable
implement the JTAG In-System-Configuration (ISC) commands. A definition of these JTAG
In-System-Configuration (ISC) commands and sequences is defined in a supplemental
document available from ST. This document is needed only as a reference for designers
who use a FlashLINK to program their PSD.
19.2
JTAG extensions
TSTAT and TERR are two JTAG extension signals enabled by an “ISC_ENABLE” command
received over the four standard JTAG signals (TMS, TCK, TDI, and TDO). They are used to
speed Program and Erase cycles by indicating status on PSD signals instead of having to
scan the status out serially using the standard JTAG channel. See Application Note
AN1153.
TERR indicates if an error has occurred when erasing a sector or programming a byte in
Flash memory. This signal goes low (active) when an Error condition occurs, and stays low
until an “ISC_CLEAR” command is executed or a chip Reset (RESET) pulse is received
after an “ISC_DISABLE” command.
TSTAT behaves the same as Ready/Busy described in Section 6.3.1: Ready/Busy (PC3).
TSTAT is high when the PSD device is in READ mode (primary and secondary Flash
memory contents can be read). TSTAT is low when Flash memory program or erase cycles
are in progress, and also when data is being written to the secondary Flash memory.
TSTAT and TERR can be configured as open-drain type signals during an “ISC_ENABLE”
command. This facilitates a wired-OR connection of TSTAT signals from multiple PSD
devices and a wired-OR connection of TERR signals from those same devices. This is
useful when several PSD devices are “chained” together in a JTAG environment.
19.3
Security and Flash memory protection
When the security bit is set, the device cannot be read on a device programmer or through
the JTAG port. When using the JTAG port, only a Full Chip Erase command is allowed.
All other Program, Erase and Verify commands are blocked. Full Chip Erase returns the part
to a non-secured blank state. The Security bit can be set in PSDsoft Express configuration.
All primary and secondary Flash memory sectors can individually be sector protected
against erasures. The sector protect bits can be set in PSDsoft Express configuration.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD854F2V-12JI | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.0V 2M 120ns RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD854F2V-12MI | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.0V 2M 120ns RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD854F2V-90J | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.0V 2M 90ns RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD854F2V-90M | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 3.0V 2M 90ns RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| PSD-8M-01 | 制造商:Richco 功能描述:CB SPT REST MNT NAT 8MM SPC |
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