R8A66597BG RENESAS [Renesas Technology Corp], R8A66597BG Datasheet - Page 21
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R8A66597BG
Manufacturer Part Number
R8A66597BG
Description
ASSP (USB2.0 2 Port Host/1 Port Peripheral Controller)
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.R8A66597BG.pdf
(185 pages)
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R8A66597FP/DFP/BG
2.3.8
R e v 1 . 0 1
USB block operations enabled bit (USBE)
This controller’s USB block operations can be enabled/disabled by writing to this bit. If the bit is modified from
"USBE=1" to "USBE=0", the controller initializes the bits shown in Table 2.5 and Table 2.6.
This bit can be modified when "SCKE=1".
When selecting the Host Controller function, write "DPRD=1", reject the LNST bit chattering, confirm that the USB bus
is stable, and then write "USBE=1".
SYSSTS0
SYSSTS1
DVSTCTR0
DVSTCTR0
INTSTS0
USBADDR
USBREQ
USBVAL
USBINDX
USBLENG
Register Name
Register Name
DVSTCTR0
DVSTCTR0
UFRMNUM
FRMNUM
O c t 1 7 , 2 0 0 8
(When the Peripheral Controller function ("DCFM=0" setting) is selected)
(While the Host Controller function ("DCFM=1" setting) is selected)
Table 2.6 List of Registers Initialized When Writing "USBE=0"
Table 2.5 List of Registers Initialized When Writing "USBE=0"
LNST
RHST
DVSQ
USBADDR
bRequest
bmRequestType
wValue
wIndex
wLength
Bit Name
UFRNM
FRNM
Bit name
RHST
p a g e 2 1 o f 1 8 3
Value retained while selecting the Peripheral Controller function
Value retained while selecting the Peripheral Controller function
Value retained while selecting the Host Controller function
Value retained while selecting the Host Controller function
Value retained while selecting the Host Controller function
Value retained while selecting the Host Controller function
Value retained while selecting the Host Controller function
Value retained while selecting the Host Controller function
Value retained while selecting the Host Controller function
Remark
Remark
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