NJU6060 View Datasheet(PDF) - Japan Radio Corporation
Part Name
Description
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NJU6060 Datasheet PDF : 12 Pages
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NJU6060
(2) Instructions
3 line type serial interface using a setup of PWM data, ON/OFF of Light Emitting Diode, etc. are made.
The input data and latched at rising edge of chip shift clock (CLK) and the 8-bit data are fetched into the NJU6060 at
the rising edge of chip select (CS). The data to input is MSB first.
Table.1 shows the instruction codes of the NJU6060.
Instruction
LED1
PWM Data Set
LED2
PWM Data Set
LED3
PWM Data Set
PWM Frequency set
/ OSC ON/OFF
/Output port ON/OFF
LED1
PWM Phase set
LED2
PWM Phase set
LED3
PWM Phase set
Test
Table 1. Instruction Code
Code
D7 D6 D5 D4 D3 D2 D1
0 0 0DD
D
D
Discription
D0
D 5-bit PWM data is set.
0 0 1DD D
D
D 5-bit PWM data is set.
0 1 0DD D
D
D 5-bit PWM data is set.
fPWM 0:(fosc/2)/32
1:(fosc/2)/64
0
1
1
fPWM
OSC
LED1
LED2
LED3
OSC 0:OFF
1:ON
LED1 to 3 0:OFF
1:ON
100*
*
*
Phase value 0,0: Same phase
101*
*
*
Phase value
0,1: 4-step shift
1,0: 8-step shift
1,1: 16-step shift
110*
*
* Phase value
111
Test Data
Inhibited command
* : Don’t Care
Note) The “PWM data set”, the “PWM Frequency set” and the “PWM phase set” commands are executed, asynchronously
to the PWM counter, thus the user’s command setting is executed after execution time, which is about 128/fosc if
{“fPWM=(fosc/2)/2”} is set up. During that execution time, the IC may execute an unexpected setting. For this
reason, it is recommended to make sure actual performance is the user’s practical application.
(2-1) Explanation of instruction code
(a) LED1 to 3 PWM Data Set
This instruction set the PWM luminance control Duty data. It sets up for every LED port.
LED1 PWM Data Set
D7 D6 D5 D4 D3 D2 D1 D0
0 0 0 DDDDD
LED2 PWM Data Set
D7 D6 D5 D4 D3 D2 D1 D0
0 0 1 DDDDD
LED3 PWM Data Set
D7 D6 D5 D4 D3 D2 D1 D0
0 1 0 DDDDD
D :DUTY
0,0,0,0,0 to 1,1,1,1,1
-4-
Ver.2004-04-16
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