lm8328tmx National Semiconductor Corporation, lm8328tmx Datasheet - Page 28

• Manufacturer Part Number: lm8328tmx
• Description: Mobile I/o Companion Supporting Keyscan, I/o Expansion Pwm, And Access.bus Host Interface
• Manufacturer: National Semiconductor Corporation

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13.3 INTERFACE CONTROL REGISTERS
The following section describes the functions of special con-
trol registers provided for the main controller.
The manufacturer code MFGCODE and the software revision
number SWREV tell the main device which configuration file
has to be used for this device.
13.3.1 I2CSA - I
13.3.2 MFGCODE - Manufacturer Code Register
13.3.3 SWREV - Software Revision Register
13.3.4 SWRESET - Software Reset
13.3.5 RSTCTRL - System Reset Register
This register allows to reset specific blocks of the LM8328.
For global reset of the IOExpander the I
Call reset' is used (see
SLAVEADDR[7:1]
Register - Name
Register - Name
Register - Name
Register - Name
MFGCODE
Bit - Name
Bit - Name
Bit - Name
SWRESET
Bit - Name
(reserved)
MFGBIT
SWREV
SWBIT
SWBIT
I2CSA
2
C-Compatible ACCESS.bus Slave Address Register
Section 10.1.6 Global Call
TABLE 40. I2CSA - I
Address
Address
Address
Address
0x80
0x80
0x81
0x81
Bit
7:1
Bit
7:0
Bit
7:0
Bit
7:0
0
TABLE 41. MFGCODE - Manufacturer Code Register
TABLE 42. SWREV - Software Revision Register
2
TABLE 43. SWRESET - Software Reset Register
C command 'General
2
Default
Default
Default
Default
C-Compatible ACCESS.bus Slave Address Register
Type
Type
Type
Type
0x44
0x00
0x84
Reset). This
W
W
R
R
I
The address is internally applied after the next I
7-bit address field for the I
(reserved)
Manufacturer code of the LM8328
8 - bit field containing the manufacturer code
Software revision code of the LM8328.
NOTE: writing the SW revision with the inverted value triggers a reset
(see SWRESET)
8 - bit field containing the SW Revision number.
Software reset
NOTE: the reset is only applied if the supplied parameter has the
inverted value as SWBIT.
Reading this register provides the software revision. (see SWREV)
Reapply inverted value for software reset.
2
C-compatible ACCESS.bus Slave Address.
28
NOTE: I2CSA and MFGCODE use the same address. They
just differentiate in the access type:
•
•
will reset the slave address back to 0x88. During an active
reset of a module, the LM8328 blocks the access to the mod-
ule registers. A read will return 0, write commands are ig-
nored.
Write - I2CSA
Read - MFGCODE
Register Function
Register Function
Register Function
Register Function
2
C-compatible ACCESS.bus slave address.
Bit Function
Bit Function
Bit Function
Bit Function
2
C STOP.