MIC2555 Micrel Semiconductor, MIC2555 Datasheet - Page 15

• Manufacturer Part Number: MIC2555
• Description: USB - OTG Transceiver
• Manufacturer: Micrel Semiconductor

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Micrel, Inc.
June 2005
USB mode: uart_en = 0
USB Transmit Operation
DIFF
RX_SE0 = not (SE_DP) and not (SE_DM)
TX_DAT = DAT_VP and not (SE0_VM)
TX_SE0 = not (DAT_VP) and not (SE0_VM)
Z
The transceiver receives USB data from D+, D- lines when:
Conditions:
Operation of the DAT_VP_RX, SE0_VM_TX and RCV pins during receive is shown on the following page.
suspend
USB Mode
DAT-SE0
VP-VM
0
0
0
0
1
1
= Differential receiver output
= Tri-State
Uart_en = 0
OE_INT/ = 0
dat_se0
0
0
1
1
0
1
DAT_VP_RX
0
1
0
1
0
1
0
1
OE_INT/
Inputs
0
1
0
1
1
1
SE0_VM_TX
0
0
1
1
0
0
1
1
DIFF
DIFF
RCV
Z
Z
Z
Z
DAT_VP
TX data
TX data
SE_DP
SE_DP
SE_DP
DIFF
D+
0
1
0
0
0
1
0
1
15
SE0_VM
RX_SE0
Outputs
RX_SE0
TX data
TX data
SE_DM
SE_DM
D-
1
0
0
0
0
0
1
1
undefined
undefined
unused
unused
unused
unused
DAT_VP
TX_DAT
RX data
RX data
RX data
RX data
RCV
1
0
D+
SE0_VM
TX_SE0
RX data
RX data
RX data
RX data
D-
[phone]
M9999-060805
MIC2555