PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 112

• Manufacturer Part Number: PC87393VJG
• Description: IC, SUPER I/O DEVICE, TQFP-100
• Manufacturer: National Semiconductor

Specifications of PC87393VJG

• Data Rate: 2Mbps
• Supply Voltage Range: 3V to 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 100
• Operating Temperature Range: 0°C to +70°C
• Termination Type: SMD
• Transceiver Type: Interface
• Rohs Compliant: No

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7.0 X-Bus Extension
7.4 X-BUS CONFIGURATION REGISTERS
The following abbreviations are used to indicate the Register Type:
7.4.1
The following table lists the X-Bus registers.
7.4.2
This register affects the functionality mode of the X-Bus.
Location:
Type:
Bit
Name
Reset
R/W = Read/Write
R = Read from a specific address returns the value of a specific register. Write to the same address is to a different
register.
W = Write
RO = Read Only
R/W1C = Read/Write 1 to Clear. Writing 1 to a bit clears it to 0. Writing 0 has no effect.
X-Bus Register Map
X-Bus Configuration Register (XBCNF)
Offset 00h
R/W
Offset
0Ch
0Ah
0Bh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
7
0
Mnemonic
Reserved exclusively for National use
XZCNF0 X-Bus Select 0 Configuration
XZCNF1 X-Bus Select 1 Configuration
XIRQCA
XIRQCB
XIRQCC X-Bus IRQ C Configuration
XIRQCD X-Bus IRQ D Configuration
(Continued)
XBCNF
XIMA0
XIMA1
XIMA2
XIMA3
XIMD
6
0
X-Bus Configuration
X-Bus IRQ A Configuration
X-Bus IRQ B Configuration
X-Bus Indirect Memory Address Register 0
X-Bus Indirect Memory Address Register 1
X-Bus Indirect Memory Address Register 2
X-Bus Indirect Memory Address Register 3
X-Bus Indirect Memory Data Register
5
0
Reserved
Register Name
112
4
0
3
0
2
0
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Extended
Enable
Mode
R/W
1
0
Section
7.4.10
7.4.2
7.4.3
7.4.4
7.4.5
7.4.5
7.4.5
7.4.5
7.4.6
7.4.7
7.4.8
7.4.9
Address
Enable
Latch
Mode
Strap
0