参数资料
型号: EVAL-ADE5169EBZ-2
厂商: Analog Devices Inc
文件页数: 140/156页
文件大小: 0K
描述: BOARD EVALUATION FOR AD5169
标准包装: 1
主要目的: 电源管理,电度表/功率表
嵌入式:
已用 IC / 零件: ADE5169
主要属性: 用于汇编语言和 C 代码的 IAR 工具
次要属性: 隔离和非隔离输出选项
已供物品: 板,软件

ADE5166/ADE5169/ADE5566/ADE5569
SERIAL PERIPHERAL INTERFACE (SPI)
The ADE5166/ADE5169/ADE5566/ADE5569 integrate a complete
hardware serial peripheral interface on chip. The SPI is full duplex
so that eight bits of data are synchronously transmitted and simul-
taneously received. This SPI implementation is double buffered,
allowing users to read the last byte of received data while a new
byte is shifted in. The next byte to be transmitted can be loaded
while the current byte is shifted out.
Data Sheet
The SPI port can be configured for master or slave operation.
The physical interface to the SPI is via the MISO (P0.5/MISO/ZX),
MOSI (P0.4/MOSI/SDATA), SCLK (P0.6/SCLK/T0), and SS
(P0.7/SS/T1/RxD2) pins, while the firmware interface is via the
SFRs listed in Table 150.
Note that the SPI pins are shared with the I 2 C pins. Therefore, the
user can enable only one interface at a time. The SCPS bit in the
configuration SFR (CFG, Address 0xAF[5]) selects which peri-
pheral is active.
SPI REGISTERS
Table 150. SPI SFR List
SFR Address
0x9A
0x9B
0xE8
0xE9
0xEA
Mnemonic
SPI2CTx
SPI2CRx
SPIMOD1
SPIMOD2
SPISTAT
R/W
W
R
R/W
R/W
R/W
Length (Bits)
8
8
8
8
8
Default
0
0
0x10
0
0
Description
SPI/I 2 C transmit buffer (see Table 151).
SPI/I 2 C receive buffer (see Table 152).
SPI Configuration SFR 1 (see Table 153).
SPI Configuration SFR 2 (see Table 154).
SPI interrupt status (see Table 155).
Table 151. SPI/I 2 C Transmit Buffer SFR (SPI2CTx, Address 0x9A)
Bit
[7:0]
Mnemonic
SPI2CTx
Default
0
Description
SPI or I 2 C transmit buffer. When the SPI2CTx SFR is written, its content is transferred to the transmit
FIFO input. When a write is requested, the FIFO output is sent on the SPI or I 2 C bus.
Table 152. SPI/I 2 C Receive Buffer SFR (SPI2CRx, Address 0x9B)
Bit
[7:0]
Mnemonic
SPI2CRx
Default
0
Description
SPI or I 2 C receive buffer. When the SPI2CRx SFR is read, one byte from the receive FIFO output is
transferred to the SPI2CRx SFR. A new data byte from the SPI or I 2 C bus is written to the FIFO input.
Rev. D | Page 140 of 156
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