參數(shù)資料
型號(hào): AS1529-BTDT
廠商: AUSTRIAMICROSYSTEMS AG
元件分類(lèi): ADC
英文描述: μPower 10-Bit 2-CH 150ksps SE; Package Type: TDFN(3x3)-8
中文描述: 微功率,10位,150ksps器,ADC,單端或差分
封裝: TDFN(3x3)-8
文件頁(yè)數(shù): 16/21頁(yè)
文件大小: 619K
代理商: AS1529-BTDT
www.austriamicrosystems.com
Revision 1.02
16 - 21
AS1528/AS1529
Datasheet - Application Information
Figure 26. QSPI Serial Interface Timing (CPOL = CPHA = 0)
PIC16 and SSP Module and PIC17 Interface
The AS1528/AS1529 are compatible with a PIC16/PIC17 controllers, using the synchronous serial port (SSP) module
To establish SPI communication, connect the PIC16/PIC17 controllers as shown in
Figure 27
and configure the PIC16/
PIC17 as system master. This is done by initializing its synchronous serial port control register (SSPCON) and syn-
chronous serial port status register (SSPSTAT) to the bit patterns shown in
Table 6 on page 17
and
Table 7 on
page 17
.
Figure 27. SPI Interface Connections for PIC16/PIC17 Controller
In SPI mode, the PIC16/PIC17 processor allow 8 bits of data to be synchronously transmitted and received simultane-
ously. Two consecutive 8-bit readings
(see Figure 28)
are necessary to obtain the entire 10-bit result from the AS1528/
AS1529. DOUT data transitions on the serial clock’s falling edge and is clocked into the processor on SCLK’s rising
edge.
The first 8-bit data stream contains the first 8 data bits starting with the MSB. The second data stream contains the
remaining bits, D3 through D0.
Figure 28. SPI Interface Timing with PIC16/PIC17 in Master Mode (CKE = 1. CKP = 0. SMP = 0, SSPM3:SSPM0
= 0001)
SCLK
CNVST
Sampling Instant
1
4
8
12
DOUT
High Z
16
B8
B7
B6
B5
B4
B3
B2
B1
B9
MSB
B0
LSB
ZERO ZERO
AS1528/
AS1529
PIC16/
PIC17
DOUT
CNVST
SCLK
7
DOUT
6
CNVST
8
SCLK
SCLK
CNVST
Sampling Instant
1
4
8
12
DOUT
High Z
16
1st Byte Read
2nd Byte Read
B8
B7
B6
B5
B4
B3
B2
B1
B9
MSB
B0
LSB
ZERO ZERO
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