Datasheet DS2423 (Maxim) - 9

DS2423
MEMORY FUNCTION FLOW CHART
Figure 7 Master TX Memory 1) From ROM Functions Function Command Flow Chart (Figure 9) To Figure 7 0FH AAH N 2nd Part Write Read Scratchpad Scratchpad N Y Y Master TX 1) Master RX 1) TA1 (T7:T0) TA1 (T7:T0) Master TX 1) Master RX 1) TA2 (T15:T8) TA2 (T15:T8) DS2423 sets Scratch- Master RX Ending 1) pad Offset = (T4:T0) Offset with Data and Clears (PF, AA) Status (E/S) DS2423 sets Scratch- Master TX Data Byte 1) pad Offset = (T4:T0) to Scratchpad Offset DS2423 sets (E4:E0) Master RX Data Byte 1) = Scratchpad Offset from Scratchpad Offset 2) 2) Master Y Master Y TX Reset? TX Reset? DS2423 Incre- DS2423 Incre- ments Scratch- N ments Scratch- N pad Offset pad Offset Scratch- Scratch- pad Offset = pad Offset = N 11111b? N 11111b? Partial Y Y Byte Written? Y Master RX "1"s 1) Y Master TX Reset? PF = 1 N 2) N Master RX CRC16 of 1) Command, Address, Data 2) Y Master TX Reset? N Master RX "1"s 1) 1) To be transmitted or received at Overdrive speed if OD = 1. From Figure 7 2) Reset Pulse to be transmitted at Overdrive speed if OD = 1. To ROM Functions 2nd Part
Not Recommended for New Design
Reset Pulse to be transmitted at normal speed if OD = 0 or if Flow Chart (Figure 9) the DS2423 is to be reset from Overdrive speed to regular speed. 9 of 25