Rainbow Electronics MAX3345E - Manual (Page 10)

MAX3344E/MAX3345E
±15kV ESD-Protected USB Transceivers
in UCSP with USB Detect
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Table 3a. Truth Table Transmit (SUSP = 0,
OE = 0, ENUM = X)
INPUT OUTPUT
MODE VPO VMO D+ D- RCV VPI VMI RESULT
0 0 0 0 1 0 0 1 LOGIC 0
0 0 1 0 0 RCV* 0 0 SE0
0 1 0 1 0 1 1 0 LOGIC 1
0 1 1 0 0 RCV* 0 0 SE0
1 0 0 0 0 RCV* 0 0 SE0
1 0 1 0 1 0 0 1 LOGIC 0
1 1 0 1 0 1 1 0 LOGIC 1
1 1 1 1 1 X 1 1 UNDEFINED
Table 3b. Truth Table Receive (SUSP = 0, OE = 1, ENUM = X)
INPUT OUTPUT
D+ D- RCV VPI VMI RESULT
0 0 RCV* 0 0 SE0
0 1 0 0 1 LOGIC 0
1 0 1 1 0 LOGIC 1
1 1 X 1 1 UNDEFINED
INPUT OUTPUT
D+ D- RCV VPI VMI RESULT
0 0 0 0 0 VPI/VMI ACTIVE
0 1 0 0 1 VPI/VMI ACTIVE
1 0 0 1 0 VPI/VMI ACTIVE
1 1 0 1 1 VPI/VMI ACTIVE
*Timing specifications are not guaranteed for D+ and D-.
Table 3c. Truth Table Transmit in Suspend* (SUSP = 1, OE = 0, ENUM = X)
INPUT OUTPUT
MODE VPO VMO D+ D- RCV VPI VMI RESULT
0 0 0 0 1 0 0 1 LOGIC 0
0 0 1 0 0 0 0 0 SE0
0 1 0 1 0 0 1 0 LOGIC 1
0 1 1 0 0 0 0 0 SE0
1 0 0 0 0 0 0 0 SE0
1 0 1 0 1 0 0 1 LOGIC 0
1 1 0 1 0 0 1 0 LOGIC 1
1 1 1 1 1 0 1 1 UNDEFINED
Table 3d. Truth Table Receive in Suspend* (SUSP = 1, OE = 1, MODE = X, VPO/VMO = X,
ENUM = X)
*Timing specifications are not guaranteed for D+ and D-.
*RCV denotes the signal level on output RCV just before SE0 state occurs. This level is stable during the SE0 period.
*RCV denotes the signal level on output RCV just before SE0 state occurs. This level is stable during the SE0 period.