Datasheet
4–3
Table 4–1. OHCI Register Map (Continued)
DMA CONTEXT REGISTER NAME ABBREVIATION OFFSET
Asynchronous context control
ContextControlSet 180h
Asynchronous
Asynchronous context control
ContextControlClear 184h
Asynchronous
Request Transmit
Reserved — 188h
Request
Transmit
[ ATRQ ]
Asynchronous context command pointer CommandPtr 18Ch
[Q]
Reserved — 190h–19Ch
Asynchronous context control
ContextControlSet 1A0h
Asynchronous
Asynchronous context control
ContextControlClear 1A4h
Asynchronous
Response Transmit
Reserved — 1A8h
Res onse
Transmit
[ ATRS ]
Asynchronous context command pointer CommandPtr 1ACh
[]
Reserved — 1B0h–1BCh
Asynchronous context control
ContextControlSet 1C0h
Asynchronous
Asynchronous context control
ContextControlClear 1C4h
Asynchronous
Request Receive
Reserved — 1C8h
Request
Receive
[ ARRQ ]
Asynchronous context command pointer CommandPtr 1CCh
[Q]
Reserved — 1D0h–1DCh
Asynchronous context control
ContextControlSet 1E0h
Asynchronous
Asynchronous context control
ContextControlClear 1E4h
Asynchronous
Response Receive
Reserved — 1E8h
Res onse
Receive
[ ARRS ]
Asynchronous context command pointer CommandPtr 1ECh
[]
Reserved — 1F0h–1FCh
Isochronous transmit context control
ContextControlSet 200h + 16*n
Isochronous
Isochronous transmit context control
ContextControlClear 204h + 16*n
Isochronous
Transmit Context n
Reserved — 208h + 16*n
Transmit Context n
n = 0, 1, 2, 3, …, 7
Isochronous transmit context command
pointer
CommandPtr 20Ch + 16*n
Reserved — 210h–3FCh
Isochronous receive context control
ContextControlSet 400h + 32*n
Isochronous
Isochronous receive context control
ContextControlClear 404h + 32*n
I
soc
h
ronous
Receive Context n
Reserved — 408h + 32*n
R
ece
i
ve
C
on
t
ex
t
n
n = 0, 1, 2, 3
Isochronous receive context command
pointer
CommandPtr 40Ch + 32*n
Isochronous receive context match ContextMatch 410h + 32*n