DS707 Datasheet, PDF (4/20 Pages) Xilinx, Inc – Configurable as single or dual port PS2 controller

LogiCORE IP XPS PS2 Controller (v1.01b)
response, that response must be received no later than 20 milliseconds after the host releases the Clock line. If this
does not happen, the host should generate an error.
X-Ref Target - Figure 2
a < 15ms
c > 100 us
b < 2ms
CLOCK
DATA
CLOCK
DATA
START
STOP
DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 PARITY
Figure 2: Host-to-device communication
ACK
DS707_02_041910
The major interface and modules, for each of the ports, of the XPS PS2 Controller are shown in Figure 3 and
described in the subsequent sections. These modules are:
• PLB Interface Module
• Interrupt Service Controller
• Serial Interface Engine (SIE)
• Internal Registers
DS707 April 19, 2010
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Product Specification