UPD720122GC-9EU-A Renesas Electronics America, UPD720122GC-9EU-A Datasheet - Page 73

• Manufacturer Part Number: UPD720122GC-9EU-A
• Manufacturer: Renesas Electronics America

Specifications of UPD720122GC-9EU-A

• Lead Free Status / RoHS Status: Supplier Unconfirmed

(4) USB connection sequence on USB 2.0 bus
(5) Bus reset sequence (1)
USB bus
USBRST
SPMODE
USB bus
USBRST
SPMODE
The bus reset sequence when connected to a USB 1.1 bus is shown below.
Pull-up is active.
FS J
Pull-up is inactive.
High-speed packet
T
0
Figure 2-13. USB Connection Sequence on USB 2.0 Bus
t
HDS
T
0
Reversion to full-speed mode
t
SPD
t
FCA
Figure 2-14. Bus Reset Sequence (1)
t
SCA
Chirp K device out
t
Data Sheet S16685EJ3V0DS
CSR
t
t
CKO
CKI
t
FCA
t
SSC
t
SCA
t
t
CSO
CSI
K
Chirp state from host/hub
t
J
DRS
Chirp K device out
t
SCS
t
K
t
CKO
CKI
J
K
t
J
SCS
K
Reversion to high-speed mode
t
RHA
J
µ
t
FSC
PD720122
Reset Complete
FS J
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