NJU6052 데이터 시트보기 (PDF) - Japan Radio Corporation
부품명
상세내역
일치하는 목록
NJU6052 Datasheet PDF : 23 Pages
| |||
NJU6052
(5) SERIAL INTERFACE
(5-1) SERIAL DATA WRITE
The serial data is latched into the shift register on the rising edge of the serial clock (SCK), and determined
on the rising edge of the data request (REQ). The serial data format should be the MSB first.
For COMMAND data transmission, the command data 1 (CMD1) and the command data 2 (CMD2) should
be continuous. The CMD1 is first, then the CMD2. If only 1-byte data is transferred, this data is recognized as the
CMD1. Do not transmit 3 bytes or more, because 3rd data is used only for maker test and the 4th and later are
ignored. If it's absolute necessary to send the 3 bytes or more in the user's application, the only data
(0,0,0,0,0,0,0,0) as the 3rd data can be accepted.
For DUTY data transmission, 8 bytes for PWM REGISTER 0-7 should be continuous. The order is : PWM
REGISTER 0, 1, 2, 3, 4, 5, 6 and 7. If 7bytes or less are transferred, all bytes are accepted. And if 9 bytes or more,
the 9th and later are ignored.
Note that the data should be in 8*n bits (n=integer number), otherwise it may cause malfunctions. And the
SCK should be “0” when the REQ is changed.
SERIAL DATA FORMAT
TABLE 3-1 Command Data 1
B7
B6
B5
B4
B3
0 SOFF
BRIGHT
B2
B1
B0
STBY HOLD REV
TABLE 3-2 Command Data 2
B7
B6
B5
B4
B3
B2
B1
B0
0
0
0
0
0
0
DIVIDE
TABLE 3-3 Duty Data
B7
B6
B5
B4
B3
B2
B1
B0
1
*
PWM REGISTER
FIGURE 1 COMMAND DATA TRANSMISSION
REQ
SCK
DATA
B7 6 5 4 3 2 1 0 B7 6 5 4 3 2 1 0
CMD1
CMD2
FIGURE 2 DUTY DATA TRANSMISSION
REQ
SCK
DATA
B7 6 5
PWM REGISTER
43
0
21
0 B7 6 0 B7 6
1
0 B7 6
6
7
Ver.2004-02-26
-7-
Share Link: 