Figure 9-42. Fast Ir (Mir And Fir) Timing Diagram; Table 9-30. Fast Ir Port Timing Parameters - AMD Geode SC3200 Data Book

Electrical Specifications
9.3.11 Fast IR Port
Symbol Parameter
t MIR signal pulse width
MPW
M MIR transmitter data rate toler-
DRT
ance
t MIR receiver edge jitter, % of
MJT
nominal bit duration
t FIR signal pulse width
FPW
t FIR signal double pulse width
FDPW
F FIR transmitter data rate toler-
DRT
ance
t FIR receiver edge jitter, % of
FJT
nominal bit duration
Note 1. t is the nominal pulse width for MIR mode. It is determined by the M_PWID field (bits [4:0]) in the MIR_PW
MWN
register at offset 01h in bank 6 of logical device 5.
AMD Geode™ SC3200 Processor Data Book

Table 9-30. Fast IR Port Timing Parameters

t
MWN
(Note 1)
t
MPW
MIR
t
FPW
FIR

Figure 9-42. Fast IR (MIR and FIR) Timing Diagram

Min Max
-25 t +25
MWN
60
± 0.1%
± 2.9%
120 130
90 160
245 255
215 285
± 0.01%
± 4.0%
Data
Symbol
t
FDPW
Chips
32581C
Unit Comments
ns Transmitter
ns Receiver
ns Transmitter
ns Receiver
ns Transmitter
ns Receiver
405