ISP1362
Single-chip USB OTG controller
Philips Semiconductors
Table 23: OtgControl register: bit description
Bit
Symbol
Description
15 to 12 -
reserved
11
OTG_SE0_ This bit is used by the HC to send SE0 on remote connect.
EN
0 — No SE0 sent on remote connect detection
1 — SE0 (bus reset) sent on remote connect detection
Remark: This bit is normally set when the B-device goes into the
b_wait_acon state (recommended sequence:
LOC_CONN = 0 -> DELAY-> 50 µs -> OTG_SE0_EN = 1 ->
SEL_HC_DC = 0) and is cleared when it comes out of the
b_wait_acon state.
10
9
A_SRP_
DET_EN
This bit is for the A-device only. If set, the A_SRP_DET bit in the
OtgInterrupt register will be set on detecting an SRP event.
0 — disable
1 — enable
A_SEL_
SRP
This bit is for the A-device to select a method for detecting the SRP
event (VBUS pulsing or data line pulsing).
0 — A-device responds to VBUS pulsing
1 — A-device responds to data line pulsing
8
SEL_HC_
DC
This bit is used to select either the DC or the HC that interfaces with
the transceiver.
0 — HC SIE is connected to the OTG transceiver
1 — DC SIE is connected to the OTG transceiver
7
6
5
LOC_
PULLDN_
DM
0 — disconnects the on-chip pull-down resistor on DM of the OTG
port
1 — connects the on-chip pull-down resistor on DM of the OTG port
LOC_
PULLDN_
DP
0 — disconnects the on-chip pull-down resistor on DP of the OTG
port
1 — connects the on-chip pull-down resistor on DP of the OTG port
A_RDIS_
This bit is for the A-device only. If set, the chip will automatically
LCON_EN enable its pull-up resistor on DP upon detecting a remote disconnect
event. If cleared, the DP pull-up is controlled by the LOC_CONN bit.
0 — disable
1 — enable
Remark: This bit is normally set when the A-device goes into the
a_suspend state and is cleared when it comes out of the a_suspend
state. The LOC_CONN bit must be set before clearing this bit.
9397 750 12337
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Product data
Rev. 03 — 06 January 2004
61 of 150
NXP [ NXP ]
