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5-10
Themis Computer
TA64 Hardware Manual
5.5.7
On-Board IO Setting Register
The On-Board IO Setting register reflects the settings of jumper pins and solder
beads (see Appendix B, “Jumper Pins and Solder Beads”) on the TA64 baseboard.
Table 5-7.
On-Board IO Setting Register 0xFB00.0005
field
Bit
Access
Description
Status of JP7
Bit 0
RO
AC97_ON_P2_L
0 = AC97 interface with P2 paddle card.
1 = AC97 interface with PMC carrier board.
Status of SB20
Bit 1
RO
TTYB_RS_232_422
0 = TTY-B set to RS422 mode.
1 = TTY-B set to RS232 mode.
Status of SB13
Bit 2
RO
SER_AB_P2_SEL
0 = TTY A/B access from front panel.
1 =TTY A/B access from P2 paddle card.
Status of SB10
Bit 3
RO
KBM_ON_P2_L
0 = PS2 keyboard/mouse access from P2 paddle card.
1 = PS2 keyboard/mouse access from front panel.
Status of SB18
Bit 4
RO
PS2_USB_SEL
0 = Provide PS2 keyboard/mouse to the front panel DIN connec-
tor.
1 = Provide 2 USB ports to the front panel DIN connector.
Status of LPC
ROMBO
Bit 5
RO
ROMBO_SENSE_L
0 = There is no LPC ROMBO connected to the TA64 board.
1 = There is an LPC ROMBO connected to the TA64 board.
Status of SB21
Bit 6
RO
SEL_BATTLE_MODE
0 = Normal Thermal control mode.
1 = Battle Thermal control mode.(The TA64 board will not shut-
down even in the over temp condition)
SMBUS1 enable
Bit 7
RW
SMBUS1 enable control
0 = Do not allow the CPU to access the device on the SMBUS1
1 = Allow the CPU to access the device on the SMBUS1.
@ reset: 1
Note:
It is useful to have this control, since during DVT this bus
can be accessed from external I2C controller. Thus, we should
avoid a multi-I2C master condition.
Содержание TA64
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