Datasheet

Datasheet
Datasheet
11/34
BD9271KUT
TSZ02201-0F1F0C100260-1-2
© 2013 ROHM Co., Ltd. All rights reserved.
27.Feb.2015 Rev.004
www.rohm.com
TSZ22111・15・001
Functions of Logic Block
Serial interface block
This IC is controlled with the CS, CLK, DI, and DO serial interfaces.
The following section describes data input format and timing.
◆WRITE MODE
・To write 1 byte of data:
・Write consecutive 32 bytes of data:
Addresses are automatically counted up in increments of 1 address by 8 bits after the first set value.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
D7 D6 D5 D4 D3 D2 D1 D0
Low
t
CSS
t
DIS
t
DIH
t
CYC
t
CSH
t
CLKH
t
CLKL
CS
CLK
DI
DO
A3A4A5A6
W
A2 A1 A0
CS
1 2 3 4 5 6 7 8 9 10111213141516
A3A4A5A6
WD255
A2 A1 A0
D254 D253
D252 D251 D250 D249
D248
CLK
DI
17
D7
D6 D5
D4 D3 D2 D1
D0
18 19 20 21 22 23 24
257 258 259 260 261 262 263 264
D247
D246
D245
D244
D243
D242 D241 D240
①
②
③
Low
①
②
③
④
④
Low
DO
Figure 14. WRITE MODE (for 1byte)
Figure 15. WRITE MODE (for 32byte)