XS1-L02A-QF124-I5 XMOS, XS1-L02A-QF124-I5 Datasheet - Page 9

• Manufacturer Part Number: XS1-L02A-QF124-I5
• Description: IC MPU 32BIT DUAL CORE 124QFN
• Manufacturer: XMOS

Specifications of XS1-L02A-QF124-I5

• 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: 880-1031

XMOS
3.1.2 Fast LLink
The fast LLink uses five wires in each direction to transmit data; 10 wires in total.
The wires are called “0”, “1”, “2”, “3”, and “4”. One of fives codes are used to
transmit data; changing the state of one of the five wires transmits a symbol. A
transition on each of the wires has the following meaning:
A sequence of four symbols are used to encode the data and control tokens. If
all four symbols are data v symbols, a total of 8 bits of data are transferred (a
data-token). If one of the four symbols is an e symbol, and the other three are v
symbols, a control-token is transmitted.
The bits of data and control tokens are always transmitted starting with the two
most significant bits. In the case of control tokens, the first two bits of the control
token are determined by the position of the e symbol.
For example, to send control token 0x09, transmit the following:
XS1-L S
1. Set wire “0” to high (signals 00 bits in bits 5 and 4)
2. Set wire “2” to high (signals 10 bits in bits 3 and 2)
3. Set wire “1” to high (signals 01 bits in bits 1 and 0)
YSTEM
first
v
e
v
v
v
S
PECIFICATION
second third
v
v
e
v
v
Transitions
Transition on
“0”
“1”
“2”
“3”
“4”
v
v
v
e
v
(0.9)
fourth
v
v
v
v
e
Symbol
v
v
v
v
e
Use
256 data tokens
64 control tokens 192-255
64 control tokens 128-191
64 control tokens 64-127
64 control tokens 0-63
Meaning
value 00
value 01
value 10
value 11
escape
2008/08/25
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