Sundance SMT335E - Manual (Page 22)

Version 1.5 Page 22 of 53 SMT335E SMT375E User Manual
SDB Status Register
SDBA_STAT 0x03480000
SDBB_STAT 0x03580000
31–30 29 28 27 26 25 24 23–16
IFLAG OFLAG IFF IFE OFF OFE IFL
R,0 R,1 R,0 R,1 R,0 R,1 R,00000000
15–8 7 6 5 4 3 2 1 0
OFL TRANS PRI DIS SDBCLK CLRIF CLROF DIR
R,11111111 RW,0 RW,0 RW,0 RW,0 W,0 W,0 R,0
Field Description (flags are active when 1)
0 Reading
DIR Transfer direction
1 Writing
CLROF Clear outgoing FIFO
CLRIF Clear incoming FIFO
0 50MHz
SDBCLK SDB clock speed
1 100MHz
0 Pause transmission when FIFO is full
DIS
1 Continue transmission even when FIFO full
0 Transmitter wins
PRI Priority for changing direction of transfer
1 Equal priority
TRANS Set to 1 after reset to make this SDB start as a transmitter
OFL Outgoing FIFO Level: number of words that can be written
IFL Incoming FIFO Level: number of words that can be read
OFE Outgoing FIFO Empty
OFF Outgoing FIFO Full
IFE Incoming FIFO Empty
IFF Incoming FIFO Full
OFLAG Outgoing FIFO Flag. Set when OFLAGLEVEL writes can be performed.
IFLAG Incoming FIFO Flag. Set when IFLAGLEVEL reads can be performed.