F71869A
6. Register Description
The configuration register is used to control the behavior of the corresponding devices. To
configure the register, using the index port to select the index and then writing data port to alter
the parameters. The default index port and data port are 0x4E and 0x4F respectively. Pull down
the SOUT1 pin to change the default value to 0x2E/0x2F. To enable configuration, the entry key
0x87 must be written to the index port. To disable configuration, write exit key 0xAA to the index
port. Following is a example to enable configuration and disable configuration by using debug.
-o 4e 87
-o 4e 87
-o 4e aa
(enable configuration)
(disable configuration)
The Following is a register map (total devices) grouped in hexadecimal address order, which shows
a summary of all registers and their default value. Please refer each device chapter if you want
more detail information.
Global Control Registers
“-“ Reserved or Tri-State
Global Control Registers
Register
0x[HEX]
Default Value
Register Name
Software Reset Register
MSB
LSB
02
07
20
21
23
24
25
-
-
-
-
-
-
-
0
Logic Device Number Register (LDN)
Chip ID Register 1
0
0
0
0
0
-
0
0
0
0
0
-
0
0
0
0
1
-
0
1
0
1
1
-
0
0
0
1
0
0
0
0
1
0
1
0
0
0
1
0
0
0
0
0
1
1
0
0
Chip ID Register 2
Vendor ID Register 1
Vendor ID Register 2
Software Power Down Register
49
Oct., 2011
V0.19P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
