AM79C850KCW AMD [Advanced Micro Devices], AM79C850KCW Datasheet - Page 51

• Manufacturer Part Number: AM79C850KCW
• Description: SUPERNET-R 3
• Manufacturer: AMD [Advanced Micro Devices]

Command Register (AFCMD)
The command register is a 16-bit register that may be
read and written through the node processor interface.
Writing to this register causes the AF to perform the
commanded operation. All data necessary for an
Reserved (bits 15:3)
Reserved
These bits are reserved for future use. These bits will
always read back as zeroes.
MSB
15
14
13
12
11
10
Figure 18. Command Register
P R E L I M I N A R Y
9
SUPERNET 3
8
7
operation must be set up in the appropriate registers
before the command being issued for an operation. This
register will be cleared (filled with zeroes) on a reset and
will retain its data after each time it is written until the
next reset.
INST (bits 2:0)
Instruction
These bits are the encoded instructions to the AF. When
these bits are written, the AF is commanded to perform
the associated function. The encoding of the instruc-
tions is presented in the table below. These bits will read
back the last data that was written to this register.
6
5
4
3
2
1
0
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
AMD
19574A-19
LSB
INST(0)
INST(1)
INST(2)
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