BU97600XXX Datasheet, PDF (30/63 Pages) Rohm – AEC-Q100 Qualified

BU97600xxx Series
Serial Data Output
1. When SCL is stopped at the low level^(Note20)
SCE
SCL
SDI
SDO
11 0 0 0 010
B0
B1
B2
B3
A0
A1
A2
A3
X KD1 KD2
Datasheet
KD17 KD18 KD19 KD20 _SA
Output Data
(Note20)
1. X=Don’t care
2. B0 to B3, A0 to A3: Serial Interface address
Figure 17. Serial Data Output Format
2. When SCL is stopped at the high level^(Note21)
SCE
SCL
SDI
SDO
1
1
0
0
0
0
1
0
B0
B1
B2
B3
A0
A1
A2
A3
KD1 KD2 KD3
KD18 KD19 KD20 SA X
Output Data
Figure 18. Serial Data Output Format
(Note21)
1. X=Don’t care
2. B0 to B3, A0 to A3: Serial Interface address
3. Serial Interface address: 43H
4. KD1 to KD20: Key data
5. SA: Sleep acknowledge data
6. If a key data read operation is executed when SDO is high, the read key data (KD1 to KD20) and sleep acknowledge data (SA) will be invalid.
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02.Apr.2015 Rev.002