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| ISL78610 Datasheet, PDF (62/98 Pages) Intersil Corporation – Multi-Cell Li-Ion Battery Manager | |||
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ISL78610
Command Timing Diagram
SPI COMMAND
DOUT
CS
tCS:WAIT
SCK
tLEAD
tLAG
tSPI
t1A
tD
DAISY CLOCK
(P2 TRANSMIT)
8* tD 8* tD
2 * tD
8* tD 8* tD
12 * tD
(Note 20) (Note 21)
(P1 RECEIVE)
8* tD 8* tD 8* tD
2µs
4 * tD
8* tD
12 * tD
SCAN
2 * tD
(P1 RECEIVE)
(FROM DEVICE 5)
8* tD 8* tD 8* tD
2µs
8 * tD
8* tD 8 * tD
SCAN
2 * tD
(P1 RECEIVE)
(FROM DEVICE 13)
8* tD
t1B
t1C
8* tD 8* tD
2µs
8* tD
SCAN
2 * tD
To Start of Scan (master)
t1A = tSPI ï´ 8 + tLEAD + tLAG ï´ 3 + 2 ï´ tCSWAIT
To Start of Scan (top/middle)
t1B = tSPI ï´ 8 + tLEAD + tLAG + tD ï´ ï¨28 + n â 2ï© + 2ïs
To End of command
t1C = tSPI ï´ 8 + tLEAD + tLAG + tD ï´ ï¨34 + N â 2ï©
Where:
tSPI = SPI clock period
tD = Daisy chain clock period
tCS:WAIT = CS High time
tLEAD = CS Low to first SPI Clock
tLAG = Last SPI Clock CS High
n = stack position of target device
N = stack position of TOP device
NOTES:
20. Master adds extra byte of zeros as part of daisy protocol.
21. Master adds N-2 clocks to allow communication to the end of the chain.
FIGURE 73. COMMAND TIMING
COMMANDS:
⢠Scan Voltages
⢠Scan Temperatures
⢠Scan Mixed
⢠Scan Wires
⢠Scan All
⢠Measure
⢠Read
⢠Write
⢠Scan Continuous
⢠Scan Inhibit
⢠Sleep
Submit Document Feedback 62
FN8830.1
June 16, 2016
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