r8a66597 Renesas Electronics Corporation., r8a66597 Datasheet - Page 27

• Manufacturer Part Number: r8a66597
• Description: Assp Usb2.0 2 Port Host/1 Port Peripheral Controller
• Manufacturer: Renesas Electronics Corporation.

R8A66597FP/DFP/BG
2.5 USB Signal Control
Remarks
None
R e v 1 . 0 1
♦ Device state control register [DVSTCTR0]
15-12 Unassigned. Fix to "0".
2-0
Bit
11
10
9
8
7
6
5
4
3
15
?
?
HNPBTOA
HNP (Host Negotiation
Protocol) B Device Host
transition control bit
EXTLP0
EXTLP0
control
VBOUT
VBOUT0
control
WKUP
Wakeup output
RWUPE
Remote wakeup detection
disabled
USBRST
Port0
output
RESUME
Port0 resume output
UACT
Port0 USB bus enabled
Unassigned. Fix to "0".
RHST
Port0 reset handshake
14
?
?
O c t 1 7 , 2 0 0 8
USB
Name
13
?
?
pin
pin
bus
12
output
output
?
?
reset
HNPBTOA EXTLP0
p a g e 2 7 o f 1 8 3
Used for HNP switch from Peripheral to Host when
controller is used as On-The-Go (OTG) B-Device.
0: Normal operations
1: Enabled to from OTG Peripheral to Host
Controls the status to be output to the EXTLP0 pin.
0: EXTLP0 low output (default)
1: EXTLP0 high output
Controls the status to be output to the VBOUT0 pin.
0: VBOUT0=Low output (Default)
1: VBOUT0=High output
Specifies whether the remote wakeup (resume signal
output) is disabled/enabled when the Peripheral Controller
function is in use.
0: Remote wakeup signal not output
1: Remote wakeup signal output
Specifies whether detection of remote wakeup (resume
signal output) from Peripheral Device connected to PORT0
is disabled/enabled when Host Controller function is in use.
0: Down port remote wakeup output disabled
1: Down port remote wakeup enabled
Controls the USB reset output control of Port0.
0: Not output
1: USB bus reset output signal output
Controls the resume output of Port0.
0: Not output
1: Resume signal output
Enables USB bus operations.
0: Down Port operations disabled (SOF/MicroSOF delivery
disabled)
1: Down Port operations enabled (SOF/MicroSOF delivery
enabled)
Displays the Port0 reset handshake status.
11
0
-
Refer to the detailed explanation.
10
0
-
VBOUT WKUP
9
0
-
Function
8
0
0
RWUPE USBRST RESUME
7
0
-
6
0
-
5
0
-
UACT
4
0
-
Software Hardware
R/W(1)
R/W
R/W
R/W
R/W
R/W
R/W
R
3
?
?
R/W(0)
R/W(1)
R/W(0)
2
0
-
W
R
R
R
R
<Address: 08H>
RHST
1
0
-
(Write to "0"
(Write to "0"
(Write to "0"
(Write to "0"
(Write to "0"
Remarks
when H)
when P)
when P)
when P)
when P)
H
H
H
H
P
0
0
-