参数资料
型号: CDB4398
厂商: Cirrus Logic Inc
文件页数: 20/46页
文件大小: 0K
描述: BOARD EVAL FOR CS4398 DAC
标准包装: 1
DAC 的数量: 2
位数: 24
采样率(每秒): 192k
数据接口: I²C,SPI?
DAC 型: 电压
工作温度: -10°C ~ 70°C
已供物品: 板,线缆
已用 IC / 零件: CS4398
产品目录页面: 757 (CN2011-ZH PDF)
相关产品: 598-1067-5-ND - IC DAC 120DB 192KHZ W/VC 28TSSOP
其它名称: 598-1155
DS568F1
27
CS4398
Figure 15. Control Port Timing, SPI Format (Write)
5.5.2
Reading in SPI
Figure 16 shows the operation of the Control Port in SPI format. To read to a register, bring CS low. The
first seven bits on CDIN form the chip address and must be 1001100. The eighth bit is a read/write control
(R/W), which must be high to read. The CDOUT line will then output the data from the register designated
by the MAP. To read multiple registers, keep CS low and continue providing clocks on CCLK. End the
read transaction by setting CS high. The CDOUT line will go to a high-impedance state once CS goes
high.
Figure 16. Control Port Timing, SPI Format (Read)
MAP
MSB
LSB
DATA
byte 1
byte n
R/W
MAP = Memory Address Pointer
ADDRESS
CHIP
CDIN
CCLK
CS
10 01 10 0
LS B
by te 1
b yte n
R/W
A DDRE SS
CHIP
CD IN
CC L K
CS
10 01 10 0
MS B
DATA
CDO UT
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