TFB2002BI

FUTUREBUS+ I/O CONTROLLER

SLLS182 – AUGUST 1994

7

POST OFFICE BOX 655303

Terminal Functions

JTAG test port

TERMINAL

I/O

FROM/TO

DESCRIPTION

NAME

NO.

I/O

FROM/TO

DESCRIPTION

TCK

167

I

Module

JTAG test clock

TDI

169

I

Module

JTAG test data in

TDO

168

O

Module

JTAG test data out

TMS

166

I

Module

JTAG test-mode select

reset port

TERMINAL

I/O

FROM/TO

DESCRIPTION

NAME

NO.

I/O

FROM/TO

DESCRIPTION

AQI

111

I

Arbitration handshake. AQI is used to determine if the arbitration bus has been idle for 1

µs.

If the arbitration bus is not implemented, this signal should be tied low.

ARI

112

I

Arbitration handshake. ARI is used to determine if the arbitration bus has been idle for 1

µs.

If the arbitration bus is not implemented, this signal should be tied high.

BINIT*

131

O

Module

Bus interface reset. BINIT* is an open-collector signal indicating that a bus interface reset

is required.

BUSI*

128

O

Bus idle. Bus has been idle for longer than 1

µs, and REO is asserted.

REI

115

I

Futurebus+ reset in

REO

113

O

Futurebus+ reset out

RST*

132

I

Module

Module power-up reset. RST* resets all logic; output signals go to their inactive states, state

outputs and bidirectional signals take on the high-impedance state.

SYSRESET*

130

O

Module

System reset required. SYSRESET* is an open-collector signal indicating that a system

reset is required.

RSTBYPASS*

124

I

Module

Reset bypass. Bypass auto alignment after power up.