Freescale Semiconductor MC68HC08KH12 - Manual (Page 147)

MC68HC(7)08KH12 — Rev. 1.1 Advance Information
Freescale Semiconductor 147
DSTALL1 — Embedded Device Endpoint 1 Force Stall Bit
This read/write bit causes embedded device Endpoint 1 to return a
STALL handshake when polled by either an IN or OUT token by the
USB Host Controller. Reset clears this bit.
1 = Send STALL handshake
0 = Default
9.5.8 USB Embedded Device Endpoint 0 Data Registers (DE0D0-DE0D7)
DE0Rx7-DE0Rx0 — Embedded Device Endpoint 0 Receive Data Buffer
These read only bits are serially loaded with OUT token or SETUP
token data directed at embedded device Endpoint 0. The data is
received over the USB’s D0+ and D0– pins.
DE0Tx7-DE0Tx0 — Embedded Device Endpoint 0 Transmit Data Buffer
These write only buffers are loaded by software with data to be sent
on the USB bus on the next IN token directed at embedded device
Endpoint 0.
Address: $0020
Bit 7 6 5 4 3 2 1 Bit 0
Read: DE0R07 DE0R06 DE0R05 DE0R04 DE0R03 DE0R02 DE0R01 DE0R00
Write: DE0T07 DE0T06 DE0T05 DE0T04 DE0T03 DE0T02 DE0T01 DE0T00
Reset: X X X X X X X X
↓ ↓
Address: $0027
Read: DE0R77 DE0R76 DE0R75 DE0R74 DE0R73 DE0R72 DE0R71 DE0R70
Write: DE0T77 DE0T76 DE0T75 DE0T74 DE0T73 DE0T72 DE0T71 DE0T70
Reset: X X X X X X X X
X = Indeterminate
Figure 9-19. USB Embedded Device Endpoint 0 Data Register
(UE0D0-UE0D7)