- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
237
Serial Communication Prohibited Period (Register Read/Write, EEPROM Read)
Fig 12.4-7 Communication Prohibited Period during Register Read/Write or EEPROM Read
Commands
After a packet is sent, there must be a communication prohibited period (prohibit_period_2) for command
processing.
Table 12.4-4 Communication Prohibited Period (Other Than for EEPROM Write)
Command
prohibit_period_2
prohibit_period_3
Register READ
Register WRITE
500 [us]
EEPROM category READ
Specify and Read
EEPROM direct address
3.0 [ms]
If it depends on the VD
falling edge,
communication is also
prohibited for +2HD.
To allow for firmware processing for each field, ensure a prohibit_period_3 including a 2HD period after the VD
falling edge.
prohibit
period 3
XCS
prohibit
period 2
prohibit
period 2
Packet 1
sending
Packet 2
sending
VD
+2HD
Packet 3 (next FLD)