K60P100M100SF2RM Datasheet, PDF (1288/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Functional Description
Charger
Detection
Phase
1
2
3
Initial VBUS
Conditions Detect
Data Pin
Contact
Detection
4
Charging Port
Detection
5
Charger
Type
Detection
6
Timeout
V B U S at portable
U S B d e v ice
I _{DEV_DCHG}
I _{DEV_HCHG_LFS}
I _SUSP
0mA
T _{UNIT_CON_ELAPSED =} T ^SEQ_INIT
T _{SEQ_INIT}
D edicated C harger
C harging H ost
T _{UNIT_CON_ELAPSED}
=1s
Dedicated Charger
C harging H ost
Full-
Speed
Portable
USB
Device
I _{DP_SRC on}
R _{DM_DWN o ff}
D+
lgc_hi
lgc_lo
V _{DP_SRC on}
I _{DM_SINK o ff}
on
DP_PULLUP _off
lgc_hi
D- _{lgc_lo}
T_{DCD_DBNC}
T _{VDPSRC_ON}
1 ms
CHECK_DM
T _{VDPSRC_CON}
C h a rg in g h o s t: V_{DAT_REF < VD- < VLGC}
Dedicated Charging Port
C harging H ost P ort, FS
Standard host: V_{D -} < V_{DAT REF}
Charging
Host Port
I _{DP_SINK}
on
off
V _{DM_SRC}
on
off
T _{VDMSRC_EN}
T _{VDMSRC_DIS}
T _{CON_IDPSNK_DIS}
V_{DM_SRC} could turn on if ground currents
c a u s e D + v o lta g e to e x c e e d V_{DAT_REF}
at charging host port.
Figure 46-9. Full Speed Charger Detection Timing
The following table provides an overview description of the charger detection sequence
shown in the preceding figure.
1288
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.