XS1-L02A-QF124-C5 XMOS, XS1-L02A-QF124-C5 Datasheet - Page 4
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XS1-L02A-QF124-C5
Manufacturer Part Number
XS1-L02A-QF124-C5
Description
IC MPU 32BIT DUAL CORE 124QFN
Manufacturer
XMOS
Specifications of XS1-L02A-QF124-C5
Processor Type
XCore 32-Bit
Speed
500MHz
Voltage
0.95 V ~ 1.05 V
Mounting Type
Surface Mount
Package / Case
124-TFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Other names
880-1020
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XMOS
should be upgraded first, followed by the second image. If the upgrade process
is interrupted at any point, there is always a working boot image.
2.3 Boot from LLink
When boot from LLink is selected, the boot ROM enables the LLink encoded by
SS XC0 BS2, SS XC0 BS1, and SS XC0 BS0 (a binary number between 0 and
7). In addition, all dedicated LLinks that are not shared with a port are enabled.
Most packages bond out only some of the pins SS XC0 BS, and pins that are
not bonded out should be interpreted as zero. A HELLO message is then sent
on each enabled LLink following the protocol defined in Section 3.2.
To boot a core the following procedure must be followed:
Boot from LLink is designed to work on systems where power-up sequences are
controlled (i.e. no hot plugging). In systems where the HELLO message could
be missed by the core that is trying to send out boot code, it should not send
0xzzzz0002 but a /dev/null channel identifier. Then the boot-code should resend
a HELLO message to open the downstream channel.
XS1-L S
• Allocate a channel-end and connect it to the channel end of the core you
• Output the 32-bit identifier c of the channel over c, allowing the other side
• Send the sequence of bytes representing size, code, and CRC as specified
• Send an END control token.
• Receive an END control token.
• Free c using FREER.
want to boot using a SETD instruction. The identifier to be written with
SETD typically has the form 0xzzzz0002, where zzzz is the core-identifier.
By default the allocated channel-end is called c.
to open a back-channel.
above.
YSTEM
S
PECIFICATION
(0.9)
2008/08/25
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