XCARD XC-1A XMOS, XCARD XC-1A Datasheet - Page 4

• Manufacturer Part Number: XCARD XC-1A
• Description: BOARD DEV KIT XS1-G4
• Manufacturer: XMOS
• Series: XCite™r
• Type: MCUr

Specifications of XCARD XC-1A

• Design Resources: XC-1A Schematic
• Contents: Board, Cable
• For Use With/related Products: XS1-G4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XC-1A Hardware Manual (1.2)
To reduce the number of pins required for the 12 clock-LEDs, the LED anodes are
The schematic for the clock-LEDs is shown below
connected to four 8-bit ports (8D) on processor 0, 1, 2 and 3 and the cathodes are
connected to two 1-bit ports (1E for green, 1F for red) on processor 0.
X0D40 X0D41 X0D42
PORT_CLOCKLED_SELR
PORT_CLOCKLED_0
To get yellow, alternate green/red in 4:1 ratio
I
0
0
1
1
II
III
X1D40
PORT_CLOCKLED_SELG
PORT_CLOCKLED_1
VI
IIII
X1D41 X1D42 X2D40
0
1
0
1
V
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IX
III
VI
Colour
Off
Green
Red
Red
PORT_CLOCKLED_2
VII
X2D41 X2D42 X3D40
G
G
VIII
PORT_CLOCKLED_SELG
PORT_CLOCKLED_SELR
C
B
IX
PORT_CLOCKLED_3
G
G
X
D
X0D12
X0D13
A
X3D41
XI
X3D42
XII
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