Section 18 Universal Serial Bus Interface (USB)
Rev. 3.00 Jan 25, 2006 page 584 of 872
REJ09B0286-0300
Bit
Bit Name Initial Value R/W
Description
0
—
0
R/(W)
Reserved
The initial value should not be changed.
Note:
*
Writing of 0 is disabled.
18.3.12 Endpoint Stall Register 0 (EPSTLR0)
EPSTLR0 stalls the USB function core endpoints. Endpoints whose EPSTL bits are set to 1
respond by a STALL handshake when a transaction has been initiated by receiving a token from
the host. A stall state (STALL handshake is used to respond) can be set from both the USB
function core and the host. A stall state can be cancelled only from the host. The stall state is
specified in the USB function core internal bit. This internal bit can be set or cleared by the
SetFeature/Clear Feature command of the host. If STALL handshaking is performed because the
EPSTL bit is set to 1, the internal bit of the USB function core is also set to a stall state. Even if
the host clears the USB function core internal bit, this internal bit remains to be set to a stall state
until the corresponding EPSTL bit is set to 1.
EPSTLR0 is initialized to H'00 by a system reset or function software reset (see section 18.3.16,
USB Control Registers 0 and 1 (USBCR0, USBCR1)).
EPSTLR0
Bit
Bit Name Initial Value R/W
Description
7
—
0
R
Reserved
This bit is always read as 0 and cannot be modified.
6
EP5STL
0
R/W
Endpoint 5 Stall
Sets endpoint 5 in a stall state.
0: Endpoint 5 is in an operating state.
(Stall state can be cancelled by the ClearFeature
command)
[Clearing condition] (SCME = 1)
•
STALL handshake response of endpoint 5 is
performed.
1: Endpoint 5 is in a stall state.
[Clearing condition] (SCME = 1)
•
1 is written to EP5STL after EP5STL = 0 has been
read.
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...