TXC-05802AIPQ Transwitch Corporation, TXC-05802AIPQ Datasheet - Page 35

• Manufacturer Part Number: TXC-05802AIPQ
• Manufacturer: Transwitch Corporation

Specifications of TXC-05802AIPQ

• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature Classification: Industrial
• Package Type: PQFP
• Mounting: Surface Mount
• Pin Count: 208
• Lead Free Status / Rohs Status: Not Compliant

MICROPROCESSOR INTERFACE
General Description
The CUBIT- Pro Microprocessor Port will support an I/O interface characteristic of either Intel or Motorola
microprocessors, as shown in Figure 27.
The connections for address A(7-0), data D(7-0), select (SEL) and processor clock (PCLK) are the same for
both cases. Differences are listed below.
Intel Mode
Enabled when device strap MOTO is connected to V
differences to support Intel mode are:
Motorola Mode
Enabled when device strap MOTO is connected to V
differences to support Motorola mode are:
WR pin is low to execute a write command,
RD pin is low to execute a read command,
Interrupt INT is active high,
Ready RDY is active high. When set low, it requests microprocessor wait time.
WR pin is not used and must be pulled up to +5 volts,
RD/WR pin is high to execute a read command or low to execute a write command,
Interrupt IRQ is active low,
Data Transfer Acknowledge DTACK is active low. When inactive, and pulled high by an external pull-
up resistor, it requests microprocessor wait time.
Interface
GND
Intel
Figure 27. Microprocessor Port Interface Connections
MOTO
PCLK
RDY
SEL
WR
INT
RD
D7
D6
D5
D4
D3
D2
D1
D0
A7
A6
A5
A4
A3
A2
A1
A0
CUBIT- Pro
- 35 -
SS
DD5
(ground). Connections are as shown in Figure 27. The
(+5V). Connections are as shown in Figure 27. The
Motorola
Interface
+5V
+5V
RD/WR
DTACK
MOTO
PCLK
SEL
IRQ
WR
D7
D6
D5
D4
D3
D2
D1
D0
A7
A6
A5
A4
A3
A2
A1
A0
CUBIT- Pro
Ed. 3, November 1999
TXC-05802
CUBIT- Pro
TXC-05802-MB