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AN2523 Datasheet(PDF) 6 Page - STMicroelectronics

Part # AN2523
Description  Migrating from STR91xF to STR91xFA
PDF  23 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2523 Datasheet(HTML) 6 Page - STMicroelectronics

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Register bit definition changes
AN2523
6/23
4EMI Bus
EMI_BCRx Registers:
EMI Burst mode is not
supported.
Add PSRAM (burst) mode new control bits in the
Bus Control registers:
Bit 0 - BLE: Byte Lane Enable
Bit 8 - BPM: Burst and Page Mode Read Selection
Bit 9 - SyncReadDev : Synchronous read access
device
Bit 11:10 - BRLEN[1:0]: Burst Read Transfer Length
Bit 16 - BMWrite : Burst mode write:
Bit 17 - SyncWriteDev: Synchronous write access
device.
Bit 19:18 - BWLen : Burst write transfer length
SCU_GPIOEMI
Bit 1 - Enable EMI_BCLK clock pin (BGA package)
Bit 2 - Enable EMI signals: WE/UB/LB configuration
(BGA package)
Table 2.
Register Bit Changes
Item
Peripheral/
Function
STR91xF
STR91xFA



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