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参数资料
| 型号： | CDB4392 |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 7/40页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD FOR CS4392 |
| 标准包装： | 1 |
| DAC 的数量： | 2 |
| 位数： | 24 |
| 采样率（每秒）： | 192k |
| 数据接口： | 串行 |
| DAC 型： | 电压 |
| 工作温度： | -10°C ~ 70°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | CS4392 |
| 相关产品： | 598-1065-5-ND - IC DAC 24BIT 192KHZ W/VC 20TSSOP |
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CS4392
DS459PP3
15
4.0.2b
I2C Read
To read from the device, follow the procedure below while adhering to the control port
Switching Specifications.
1) Initiate a START condition to the I2C bus followed by the address byte. The upper 6 bits
must be 001000. The seventh bit must match the setting of the AD0 pin, and the eighth must
be 1. The eighth bit of the address byte is the R/W bit.
2) After transmitting an acknowledge (ACK), the device will then transmit the contents of
the register pointed to by the MAP. The MAP register will contain the address of the last
operation performed on the device.
3) Once the device has transmitted the contents of the register pointed to by the MAP, issue
an ACK.
4) If the INCR bit is set to 1, the device will continue to transmit the contents of successive
registers. Continue providing a clock and issue an ACK after each byte until all the desired
registers are read, then initiate a STOP condition to the bus.
5) If the INCR bit is set to 0 and further I2C reads from other registers are desired, it is nec-
essary to initiate a STOP condition and follow the procedure detailed from steps 1 and 2
from the I2C Write instructions followed by step 1 of the I2C Read section. If no further
reads from other registers are desired, initiate a STOP condition to the bus.
SD A
SC L
001000
AD DR
AD 0
R/W
Sta rt
AC K
DA T A
1-8
AC K
DA T A
1-8
AC K
Stop
N o te : If o p e ra tio n is a w rite , th is b y te c o n ta in s th e M e m o ry A d d re s s P o in te r, M A P .
N o te 1
Figure 8. Control Port Timing, I2C Mode
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