AMD Geode™ SC2200 Processor Data Book 425
Electrical Specifications 32580B
9.3.11 Fast IR PortFigure 9-42. Fast IR (MIR and FIR) Timing DiagramTable 9-31. Fast IR Port Timing Parameters
Symbol Parameter Min Max Unit Comments
tMPW MIR signal pulse width tMWN-25
(Note 1)
tMWN+25 ns Transmitter
60 ns Receiver
MDRT MIR transmitter data rate toler-
ance
± 0.1%
tMJT MIR receiver edge jitter, % of
nominal bit duration
± 2.9%
tFPW FIR signal pulse width 120 130 ns Transmitter
90 160 ns Receiver
tFDPW FIR signal double pulse width 245 255 ns Transmitter
215 285 ns Receiver
FDRT FIR transmitter data rate toler-
ance
± 0.01%
tFJT FIR receiver edge jitter, % of
nominal bit duration
± 4.0%
Note 1. tMWN is the nominal pulse width for MIR mode. It is determined by the M_PWID field (bits [4:0]) in the MIR_PW
register at offset 01h in bank 6 of logical device 5.
tFPW
Data
MIR
FIR
Symbol tFDPW
Chips
tMPW