Global bus operation register, Global bus control register – Sundance SMT335E User Manual
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Version 1.5
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SMT335E SMT375E User Manual
Global Bus Operation Register
GLOBAL_BUS_LENGTH 0x03900000
31–9 8
7–0
OPERATION TRIGGER
RW,0 RW,00000000
Field Description
0
Read from the Global Bus
OPERATION
1
Write to the Global Bus
TRIGGER
One less than the number of words to move
Global Bus Control Register
GLOBAL_BUS_CTRL 0x03800000
31–20 19–16
15–8 7–5
4–3 2
1
0
WTCNT POS
SWW
INC AUTORESTART STAT
RW,0000
R,00000000
RW,00
RW,0
RW,0
R,0
Field Description
STAT
STAT becomes 1 when a global bus transfer has completed and
is set to 0 when the C6000 next accesses the DPR.
0
The global bus read will only occur when the transfer count
is set.
AUTORESTART
1
A global bus read operation will be restarted once the
C6000 has read the previous data.
0 Do not increment the address after each transfer.
INC
1 Increment the global bus address after every access
SWW
Software wait state mode selection
WTCNT Number
of
software wait states (0–15)
POS
Current position of the Global Bus transfer.