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AMD Alchemy Solutions Processors
2.5. Program a Serial Device (I2C/SPI/MicroWire)
Usage:
JTAuxxxx /PSER filename [/SERBIG] [optionlist]
The specified file is programmed to a serial device (i.e. EEPROM) connected to
pins of the CPU. Finally a complete verify is done. If the verify fails, the contents
of the serial device is written to a file with the extension DMP.
For an I2C device there are two different methods how to connect it to the CPU.
The first method uses two CPU pins, one pin for clock output (SERCLK) and one
pin for serial data input/output (SERDAT). The second method uses one pin for
clock output (SERCLK), one for serial data input (SERDATI) and one for serial
data output (SERDATO).
Connecting a SPI/MicroWire device needs four different CPU pins: SERCS is the
chip select output of the CPU, SERCLK is the clock output of the CPU,
SERDATO is the serial data output of the CPU and must be connected to the SI
input at the SPI/MicroWire device and SERDATI is the serial data input to the
CPU and must be connected to the SO output of the SPI/MicroWire device.
Options:
/SERBIG
Specify this option if there is a device which needs a three byte address instead
of a two byte address. For SPI devices this option is normally needed for devices
with more than or equal to 64 kBytes. For I2C devices this option is normally
needed for devices with more than 2 kByte.
This option must be the first option after the filename.
/SPI
Specify this option, if there is a SPI device connected instead of an I2C device.
/MWIRE
Specify this option, if there is a MicroWire device connected instead of an I2C
device.
Please Note: Actually only the M93C06 and the M93C46 and only in 16 Bit mode
are supported.
74
JTAG_alchemyb.doc
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