M69000 Asiliant Technologies, M69000 Datasheet - Page 189

• Manufacturer Part Number: M69000
• Manufacturer: Asiliant Technologies

Specifications of M69000

• Lead Free Status / Rohs Status: Supplier Unconfirmed

14-22
XR71
read-only at I/O address 3D7h with index at I/O address 3D6h set to 71h
The bits of this register indicate the state of each of these pins at the time the graphics controller is reset.
During a reset, the graphics controller does not drive these pins, thereby allowing them to either be pulled
high by relatively weak internal resistors, or to be pulled low by external resistors (4.7K recommended).
Instead, during reset, the graphics controller latches the state of these pins, and the latched values are used
by the graphics controller to provide a limited degree of hardware-based configuration of some features.
Some of these latched values directly affect the hardware, while others are simply reflected in this register
so as to be read by configuration software, usually the BIOS.
7
6
5
4
3
2
1
0
&+,36
CFG15
(x)
7
Pin CFG15
Reserved. An interpretation has not been assigned to the state of this bit, and the hardware does
not interpret the state of the corresponding pin during reset.
Pin CFG14
Reserved for BIOS use as bit 3 of a 4-bit code specifying the panel type.
Pin CFG13
Reserved for BIOS use as bit 2 of a 4-bit code specifying the panel type.
Pin CFG12
Reserved for BIOS use as bit 1 of a 4-bit code specifying the panel type.
Pin CFG11
Reserved for BIOS use as bit 0 of a 4-bit code specifying the panel type.
Pin CFG10
Reserved. An interpretation has not been assigned to the state of this bit, and the hardware does
not interpret the state of the corresponding pin during reset.
Pin CFG9
Reserved. An interpretation has not been assigned to the state of this bit, and the hardware does
not interpret the state of the corresponding pin during reset.
Pin CFG8
Reserved. An interpretation has not been assigned to the state of this bit, and the hardware does
not interpret the state of the corresponding pin during reset.
69000 Databook
Configuration Pins 1 Register
CFG14
(x)
6
CFG13
(x)
5
Subject to Change Without Notice
Extension Registers
CFG12
(x)
4
CFG11
(x)
3
CFG10
(x)
2
CFG9
(x)
Revision 1.3 8/31/98
1
CFG8
(x)
0