Datasheet

78M6610+PSU Data Sheet
Table 4-1 lists the commands that are supported by the 78M6610+PSU.
Table 4-1: Host Commands
Command
Parameters
Description
0 - 7F (invalid)
80 - 9F (not used)
A0
Clear address
A1 [byte-L] Set Read/Write address bits [7:0]
A2 [byte-H] Set Read/Write address bits [15:8]
A3 [byte-L][byte-H] Set Read/Write address bits [15:0]
A4 - AF (reserved for larger address targets)
B0 - BF (not used)
C0
De-select Target (target will Acknowledge)
C1 - CE Select target 1 to 14
CF [byte] Select target 0 to 255
D0
[data...]
Write bytes set by remainder of Byte Count
D1 - DF [data...] Write 1 to 15 bytes
E0 [byte] Read 0 to 255 bytes
E1 – EF Read 1 to 15 bytes
F0 - FF (not used)
Slave Packets
The 78M6610+PSU replies to the host processor either with an acknowledge (either ACK or NACK) or
with data. The format of slave packets depends upon the type of response to the master device.
Table 4-2
lists the reply codes and their meanings.
Table 4-2: Slave Reply Codes
Code Definition
0xAA Acknowledge with data.
0xAE Auto Reporting Header (with data).
0xAD Acknowledge without data.
0xB0 Negative Acknowledge (NACK).
0xBC Command not implemented.
0xBD Checksum failed.
0xBF Buffer overflow (or packet too long).
- timeout - Any condition too difficult to handle with a reply.
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