MB86296 Datasheet, PDF (37/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
EE
Input
EEPROM Enable. Enables the PCI EEPROM Configuration.
This pin may also be configured as a GPIO Input/Output and
acts as RI5 (Red Input 5) when the RGB Input is enabled.
ECS
Output
EEPROM Chip Select . This pin may also be configured as a
GPIO Input/Output and acts as RI3 (Red Input 3) when the
RGB Input is enabled.
ECK
Output
EEPROM Clock. This pin may also be configured as a GPIO
Input/Output, the Serial Interface clock Output and acts as
RI2 (Red Input 2) when the RGB Input is enabled.
EDO
Output
EEPROM Data Out. This pin may also be configured as a
GPIO Input/Output, the Serial Interface Data Output and
acts as RI1 (Red Input 1) when the RGB Input is enabled.
EDI
Input
EEPROM Data In. This pin may also be configured as a
GPIO Input/Output, the Serial Interface Data Input and acts
as RI4 (Red Input 4) when the RGB Input is enabled.
GI0-4
Input
GPIO Inputs. These pins also act as GI0-4 (Green Inputs 0-
4) when the RGB Input is enabled.
The EE, ECK, ECS, EDO, EDI, BC, TC, SB and BEN signals can all be configured as GPIO
inputs/outputs and default to GPIO inputs at reset unless otherwise specified by the reset control pins
(TC, BEN) which can be used to enable the EEPROM or the RGB input. The GI0-4 signals can be
GPIO inputs only, which is their default state unless the RGB input is enabled in which case they are
used as Green[0-4].
The Host Interface also has a serial interface function built in. This uses the EDI/EDO signals as data
in/out, the ECK pin as a serial clock output and the SB pin as a strobe output. The serial interface may
only be used when neither the EEPROM nor the RGB input is in use.
Once the device has been reset all configuration of the host interface related pins is done using the IO
Mode register (IOM).
Note that to enable the RGB input the XRE signal must be active low and also the appropriate register
in the capture engine must be configured.
MB86296S <Coral-PA>
27
Specification Manual Rev0.1