DSI COMMANDS AND RESPONSES REQUEST ID COMMA" />
參數(shù)資料
型號(hào)： MCZ33793EF
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 10/27頁(yè)
文件大?。?/td> 0K
描述： IC DSI SLAVE REMOTE SENS 16-SOIC
標(biāo)準(zhǔn)包裝： 48
類型： 傳感器接口
輸入類型： 邏輯
輸出類型： 邏輯
接口： 并聯(lián)
電流 - 電源： 250mA
安裝類型： 表面貼裝
封裝/外殼： 16-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC N
包裝： 管件
產(chǎn)品目錄頁(yè)面： 808 (CN2011-ZH PDF)
Analog Integrated Circuit Device Data
18
Freescale Semiconductor
33793
FUNCTIONAL DEVICE OPERATION
DSI COMMANDS AND RESPONSES
REQUEST ID COMMAND
This command will cause the device ID information to be read
from internal storage and returned to the master during the
response to the next message. The command format is found
REQUEST ID RESPONSE
This response message is sent during the next message
following a valid long-word Request ID command to the
addressed device. The response format is found in Table 19.
The high byte is omitted during the short-word response. No
response is generated if the command address field was $0.
CLEAR COMMAND
This command will open the bus switch and reset all registers
to the reset state. The command format is found in Table 20.
No response is generated for the Clear command.
READ/WRITE NVM COMMAND
If the NV bit has been set by a previous Initialization
command and the NVM has not been programmed
previously, this command will permanently program the
device’s one-time programmable address and return the
programmed value during the next message time. Once
programmed, this nonvolatile address is used to set the
device address register on the next and all subsequent
power-ups. If the device is not blank, this command will return
the programmed value during the next message time.
Programming the NVM address to $0 is allowed. This
ensures that the device always acts as a dynamically
addressable device and would be immune to any inadvertent
future NVM programming sequences.
Table 17. I/O Control Response Format
High Byte
Low Byte
CRC
A3
A2
A1
A0
0
L3
L2
L1
L0
DR3
DR2
DR1
DR0
X3
X2
X1
X0
Legend
A[3:0] = Address bits.
DR[3:0] = I/O enabled as outputs (1 = enabled as output).
L[3:0] = Programmed values.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
slave.
Table 18. Request ID Command Format
Data
Address
Command
CRC
–
A3
A2
A1
A0
0
1
0
X3
X2
X1
X0
Legend
A[3:0] = Address bits. The address of the selected device. An
address value of “0000” is ignored by all devices.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
master.
Table 19. Request ID Response Format
Address
Status
Data
CRC
A3
A2
A1
A0
0
V2
V1
V0
0
1
X3
X2
X1
X0
Legend
A[3:0] = Address bits. The slave address.
V[2:0] = Device version number. The silicon version number of the
device. For this device the device type is 00011 as indicated by the
lowest bits.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
slave.
Table 20. Clear Command Format
Data
Address
Command
CRC
–
A3
A2
A1
A0
0
1
X3
X2
X1
X0
Legend
A[3:0] = Address bits. The address of the selected device. An
address value of “0000” clears all devices.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
master.
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