HT45B0K Holtek Semiconductor, HT45B0K Datasheet - Page 11

• Manufacturer Part Number: HT45B0K
• Description: SPI to USB Bridge
• Manufacturer: Holtek Semiconductor

HT45B0K
SPI to USB Bridge
Rev 1.00
AWR Register
STALL Register
Name
Name
POR
POR
R/W
R/W
Bit
Bit
The AWR register contains the USB device address and the Remote wake-up function control bit.
The initial value of the USB device address is 00H. The address value extracted from the USB
command is to be immediately loaded into this register or not depending upon the device address
update control bit ASET in the SIES register.
AWR Register
The STALL register shows whether the corresponding endpoint works properly or not. As soon
as the endpoint works improperly, the related bit in the STALL register has to be set to 1 by
application program. The contents of the STALL register will be cleared by USB reset signal.
STALL Register
Bit 7~1 UAD6~UAD0: USB device address
Bit 0
Bit 7~6 Unimplemented, read as “0”.
Bit 5~0 STL5~STL0: USB endpoint stall indication
UAD6
R/W
―
―
―
7
0
7
1: enable USB remote wake-up function
1: the corresponding USB endpoint is stalled.
The STL bit is set by users when the related USB endpoint is stalled. These
bits are cleared by USB reset signal. For endpoint 0 the stall bit STL0 can also
be cleared by Setup Token event.
WKEN: USB device Remote Wake-up function enable control
0: disable USB remote wake-up function
0: the corresponding USB endpoint is not stalled.
UAD5
R/W
―
―
―
6
0
6
UAD4
STL5
R/W
R/W
5
0
5
1
11
UAD3
STL4
R/W
R/W
4
0
4
1
UAD2
STL3
R/W
R/W
3
0
3
1
UAD1
STL2
R/W
R/W
2
0
2
1
UAD0
STL1
R/W
R/W
1
0
1
1
March 22, 2010
www.DataSheet4U.com
WKEN
STL0
R/W
R/W
0
0
0
1