PEB20256EV21GXP Infineon Technologies, PEB20256EV21GXP Datasheet - Page 138

• Manufacturer Part Number: PEB20256EV21GXP
• Manufacturer: Infineon Technologies

Specifications of PEB20256EV21GXP

• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Compliant

SPI
SPI Access Register
Access
Address
Reset Value
SPIS
SCMD
SBA
Data Sheet
31
15
0
0
0
: read/write
: 40
: 0000001F
SPI Start
To start the EEPROM transaction, which is defined in the SPI command,
the byte address, and the data field, this bit must be set to ‘1’ by a write
transaction through the PCI interface. After the transaction is finished,
the start bit is deasserted by the SPI interface controller. This signal must
be polled by system software.
SPI Command
In this register, the SPI command for the next EEPROM transfer must be
written before the transaction is started. The following SPI commands
are supported:
01
02
03
04
05
06
SPI Byte Address
For read and write transaction to the connected EEPROM, the byte
address must be written in this register before the transaction is started.
H
H
H
H
H
H
SBA(7:0)
0
H
WRSR
WRITE
READ
WRDI
RDSR
WREN
0
H
0
Write Status Register
Write Data to Memory Array
Read Data from Memory Array
Reset Write Enable Latch
Read Status Register
Set Write Enable Latch
0
SPIS
24
8
138
23
7
SCMD(7:0)
SWD(7:0)
Register Description
PEB 20256 E
PEF 20256 E
04.2001
16
0