sercon410b STMicroelectronics, sercon410b Datasheet - Page 19

• Manufacturer Part Number: sercon410b
• Description: Sercos Interface Controller
• Manufacturer: STMicroelectronics

AC ELECTRICAL CHARACTERISTICS (Continued)
Figure 11. Write Access to Control Registers
3.4.7 Write Access to Control Registers
Symbol
t
PWRW
t
t
t
t
t
ASU
AHD
DSU
DHD
PRQ
Setup time A6-0, BHEN, PCSN0, PCS1,
DMAACKNT, WRN (only Motorola mode) to
falling edge WRN (Intel mode) or RDN
(Motorola mode, strobe active low) or rising
edge RDN (Motorola mode, strobe active
high)
Hold time A6-0, BHEN, PCSN0, PCS1,
DMAACKNT, WRN (only Motorola mode) to
rising edge WRN (Intel mode) or RDN
(Motorola mode, strobeactive low) or falling
edge RDN (Motorola mode, strobe active
high)
Pulse width WRN (Intel mode) or RDN
(Motorola mode)
Setup time D15-0 to end of write access
Hold time D15-0 to end of write access
Delay WRN or RDN to DMAREQT low
Parameter
Min.
30
10
10
0
0
Value
Type
Max.
30
SERCON410B
Unit
ns
ns
ns
ns
ns
ns
15/30