参数资料
型号: ADM1275-1ACPZ
厂商: Analog Devices Inc
文件页数: 28/48页
文件大小: 0K
描述: IC HOT SWAP CTRL PMBUS 20LFCSP
标准包装: 1
类型: 热交换控制器
应用: 通用
内部开关:
电流限制: 可调
电源电压: 2.95 V ~ 20 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-WQFN 裸露焊盘,CSP
供应商设备封装: 20-LFCSP-WQ(5x5)
包装: 托盘
配用: EVAL-ADM1275EBZ-ND - BOARD EVALUATION FOR ADM1275
ADM1275
SMBus MESSAGE FORMATS
Figure 58 to Figure 65 show all the SMBus protocols supported
by the ADM1275 , along with the PEC variant. In these figures,
unshaded cells indicate that the bus host is actively driving the
bus; shaded cells indicate that the ADM1275 is driving the bus.
Figure 58 to Figure 65 use the following abbreviations:
S = start condition
Sr = repeated start condition
P = stop condition
Data Sheet
R = read bit
W = write bit
A = acknowledge bit (0)
A = acknowledge bit (1)
“A” represents the ACK (acknowledge) bit. The ACK bit is typi-
cally active low (Logic 0) if the transmitted byte is successfully
received by a device. However, when the receiving device is the
bus master, the acknowledge bit for the last byte read is a Logic 1,
indicated by A.
S
SLAVE ADDRESS
W
A
DATA BYTE
A
P
S
SLAVE ADDRESS
W
A
DATA BYTE
A
PEC
A
P
MASTER TO SLAVE
SLAVE TO MASTER
Figure 58. Send Byte and Send Byte with PEC
S
SLAVE ADDRESS
R
A
DATA BYTE
A
P
S
SLAVE ADDRESS
R
A
DATA BYTE
A
PEC
A
P
MASTER TO SLAVE
SLAVE TO MASTER
Figure 59. Receive Byte and Receive Byte with PEC
S
SLAVE ADDRESS
W
A
COMMAND CODE
A
DATA BYTE
A
P
S
SLAVE ADDRESS
W
A
COMMAND CODE
A
DATA BYTE
A
PEC
A
P
MASTER TO SLAVE
SLAVE TO MASTER
Figure 60. Write Byte and Write Byte with PEC
S
SLAVE ADDRESS
W
A
COMMAND CODE
A Sr
SLAVE ADDRESS
R
A
DATA BYTE
A
P
S
SLAVE ADDRESS
W
A
COMMAND CODE
A Sr
SLAVE ADDRESS
R
A
DATA BYTE
A
PEC
A
P
MASTER TO SLAVE
SLAVE TO MASTER
Figure 61. Read Byte and Read Byte with PEC
S
SLAVE ADDRESS
W
A
COMMAND CODE
A
DATA BYTE LOW
A
DATA BYTE HIGH
A
P
S
SLAVE ADDRESS
W
A
COMMAND CODE
A
DATA BYTE LOW
A
DATA BYTE HIGH
A
PEC
A
P
MASTER TO SLAVE
SLAVE TO MASTER
Figure 62. Write Word and Write Word with PEC
S
SLAVE ADDRESS
W
A
COMMAND CODE
A Sr
SLAVE ADDRESS
R
A
DATA BYTE LOW
A
DATA BYTE HIGH
A
P
S
SLAVE ADDRESS
W
A
COMMAND CODE
A Sr
SLAVE ADDRESS
R
A
DATA BYTE LOW
A
DATA BYTE HIGH
A
PEC
A
P
MASTER TO SLAVE
SLAVE TO MASTER
Figure 63. Read Word and Read Word with PEC
Rev. D | Page 28 of 48
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