Core1553BRT-EBR Enhanced Bit Rate 1553 Remote Terminal
Address Mapper Timing
CLK
Current Command
CMDVAL
Next Command
ADDRLAT
MEMREQn
MEMCSn
Note: This figure shows worst-case timing when a second 1553EBR command arrives as the core starts a backend transfer and MEMGNTn
is held low.
Figure 16 • Address Mapper Timing
Interrupt Vector Extender Timing
CLK
Current Command
Next Command
CMDVAL
INTLAT
INTOUT
Note: This figure shows worst-case timing when a second 1553EBR command arrives as the core asserts an interrupt request. Also, INTLAT
may be active for several clock cycles prior to INTOUT.
Figure 17 • Interrupt Vector Extender Timing
RT Response Times
RT response time is measured from the midpoint of the parity bit in the command word to the midpoint of the status
word sync (Table 17).
Table 17 • RT Response Times
Spec
Trtresp
Txxto
Description
Time
0.4 to 0.8 µs
71 µs
RT response time
Transmitter timeout
The RT-to-RT timeout is measured from the first command word parity bit to the expected sync of the first data word.
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Advanced v1.1
ACTEL [ Actel Corporation ]
