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参数资料
型号： MC33793D
厂商： Freescale Semiconductor
文件页数： 8/27页
文件大小： 0K
描述： IC DSI SLAVE FOR R-SENSE 16-SOIC
标准包装： 48
类型： 分布式系统接口
输入类型： 逻辑
输出类型： 逻辑
接口： 并联
安装类型： 表面贴装
封装/外壳： 16-SOIC（0.154"，3.90mm 宽）
供应商设备封装： 16-SOIC N
包装： 管件
Analog Integrated Circuit Device Data
16
Freescale Semiconductor
33793
FUNCTIONAL DEVICE OPERATION
DSI COMMANDS AND RESPONSES
INITIALIZATION RESPONSE
This response message is sent during the next message
following a valid Initialization command to the addressed
device. The response is shown in Table 10. Because this is a
long-word only command, the short-word response is invalid.
REQUEST STATUS COMMAND
This command will cause the addressed device to return the
status of the NV, U, and BS bits and the logic levels of the I/
O and LOGICOUT. The command format is found in
Table 11.
REQUEST STATUS RESPONSE
This response message is sent during the next message
following a valid Request Status command to the addressed
device. The response format is found in Table 12. The high
byte is omitted during the short-word response. No response
is generated if the command address field was $0.
Table 9. Initialization Command Format
Data
Address
Command
CRC
NV
BS
G1
G0
PA3
PA2
PA1
PA0
A3
A2
A1
A0
0
X3
X2
X1
X0
Legend
A[3:0] = Address bits. The slave address.
BS = Bus Switch Position (1 = closed).
G[1:0] = Group bits (unused).
NV = Nonvolatile Memory Write. The value of the NV bit in the slave.
PA[3:0] = Bus Address to set the device to.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
master.
Table 10. Initialization Response Format
High Byte
Low Byte
CRC
A3
A2
A1
A0
0
BF
NV
BS
G1
G0
PA3
PA2
PA1
PA0
X3
X2
X1
X0
Legend
A[3:0] = Address bits. The slave address.
BF = Bus Fault. Bus out short to battery detected.
BS = Bus Switch Position (1 = closed).
G[1:0] = Group bits (unused).
NV = Nonvolatile Memory Write. The value of the NV bit in the slave.
PA[3:0] = Bus Address to set the device to.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by
the slave.
Table 11. Request Status 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" is ignored by all devices.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
master.
Table 12. Request Status Response Format
High Byte
Low Byte
CRC
A3
A2
A1
A0
0
NV
U
LO
BS
IO3
IO2
IO1
IO0
X3
X2
X1
X0
Legend
A[3:0] = Address bits. The slave address.
BS = Bus Switch Position (1 = closed).
LO = Logic out driven level.
IO[3:0] = Values at logic I/Os.
NV = Nonvolatile Memory Write. The value of the NV bit in the slave.
U = Undervoltage indicated true by a “1”.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
slave.
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