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33793 Datasheet PDF : 24 Pages
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Freescale Semiconductor, Inc.
Long- and Short-Word Responses
The device responds to long-word commands with long-word
responses and short-word commands with short-word
responses. Responses are sent during the next message
following the command. A long-word response summary is
found in Table 2 and a short-word response summary is found
in Table 3, page 14.
Table 2. Long-Word Response Summary
CMD
hex
Command
Description
Response
0
Initialization
A3 A2 A1 A0 0 0 0 BF NV BS G1 G0 PA3 PA2 PA1 PA0
1
Request Status
A3 A2 A1 A0 0 0 0 0 NV U LO BS IO3 IO2 IO1 IO0
2
Request Value 0
A3 A2 A1 A0 0 0 0 0 B7 B6 B5 B4 B3 B2 B1 B0
3
I/O Control
A3 A2 A1 A0 0 0 0 0 L3 L2 L1 L0 DR3 DR2 DR1 DR0
4
Request ID
A3 A2 A1 A0 0 0 0
0 V2 V1 V0 0
0
0
1
1
5
Request Value 1
A3 A2 A1 A0 0 0 0 0 B7 B6 B5 B4 B3 B2 B1 B0
6
Request Value 2
A3 A2 A1 A0 0 0 0 0 B7 B6 B5 B4 B3 B2 B1 B0
7
Clear
No Response
8
Request Value 3
A3 A2 A1 A0 0 0 0 0 B7 B6 B5 B4 B3 B2 B1 B0
9
Read/Write NVM
A3 A2 A1 A0 0 0 0 0 1 1 1 1 PA3 PA2 PA1 PA0
A
Reserved
B
Reserved
C Clear Logic Out
A3 A2 A1 A0 0 0 0 0 NV U LO BS IO3 IO2 IO1 IO0
D Set Logic Out
A3 A2 A1 A0 0 0 0 0 NV U LO BS IO3 IO2 IO1 IO0
E
Reserved
F
Reverse Initialization A3 A2 A1 A0 0
0
0 BF NV BS G1 G0 PA3 PA2 PA1 PA0
Legend
A[3:0] = Address bits. The slave address.
B[7:0] = 8-bit A/D value.
BF = Bus Fault
BS = Status of the Bus Switch (1 = close).
DR[3:0] = I/O direction bits (1 = Output).
G[1:0] = Group assignment (the 33793 does not use these bits).
IO[3:0] = Logic level of I/O.
L[3:0] = Level to output on I/O if configured as outputs.
LO = Logic Out level at the Logic Out pin.
NV = Allows nonvolatile address programming if set to “1”.
PA[3:0] = Bus Address to set the device to.
U = Undervoltage Flag.
V[2:0] = Version number.
MOTOROLA ANALOG INTEGRATED CIRFCoUrITMDEoVrIeCEIDnAfoTArmation On This Product,
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