CAM35C44 查看數據表（PDF） - SMSC -> Microchip
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CAM35C44 Datasheet PDF : 50 Pages
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CONFIGURATION
The CAM35C44 configuration registers are used
to program selectable chip-level device options
(TABLE 13).
The configuration registers can only be
programmed through the configuration access
ports that appear when the chip is placed into
the configuration state.
Configuration register programming typically
follows this sequence:
1. Enter the Configuration State,
2. Program the Configuration
Register(s),
3. Exit the Configuration State.
If enabled, logical devices in the CAM35C44 will
operate normally in the configuration state.
Configuration Access Ports
The configuration access ports are the config
port, the index port, and the data port (TABLE
11).
The configuration access ports are the only
addressable registers in the CAM35C44
configuration bank (TABLE 12).
The index port and the data port are only active
in the configuration state.
Note1
Note2
Note3
TABLE 11 - CONFIGURATION ACCESS PORTS
PORT NAME
CONFIG PORT
INDEX PORT
DATA PORT
ADDRESS
BANK 0, ADDRESS 03
BANK 0, ADDRESS 03
BANK 0, ADDRESS 13
DIRECTION
WRITE
READ/WRITE1,2
READ/WRITE1
The INDEX and DATA ports are active only when the CAM35C44 is in the configuration
state.
The INDEX PORT is only readable in the configuration state.
The CAM35C44 register banks are described in section REGISTER ADDRESS MAP on
page 16. The register addresses in the CAM35C44 configuration bank are shown in
TABLE 12.
18
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