AcPC8635A: Nonintelligent 3U cPCI IP Carrier, Rear I/O

The AcPC8635A is a non-intelligent slave board that interfaces two IP modules to the CompactPCI® (cPCI) bus.

All 100 I/O points are brought out the rear J2 connector. This convenience eliminates messy cables from hanging out the front of the cage. In addition to a more efficient cage wiring design, it is also much easier to insert and replace boards.

The AcPC8635A is a drop in replacement for the AcPC8635, please see the known differences document below for more information.
Known difference between the AcPC8635 and the AcPC8634A statement.

Performance Specifications

General

Acromag’s carrier boards provide full data access to the IP module’s I/O, ID and interrupt spaces. With full access to the programmable registers, you can easily configure and control the operation of the IP modules from the cPCI bus.

Up to two interrupt requests are supported for each IP module. All board interrupts are mapped to PCI bus INTA# signal.

Individual passive filters on each IP power supply line provide optimum filtering and noise isolation between the IP modules and the carrier board.

IP Compliance (ANSI/VITA 4)

Meets IP specs per ANSI/VITA 4-1995 (8MHz operation only) and IP I/O mapping to J2 per PICMG 2.4 R1.0.
Electrical/mechanical interface: Supports single or double size IP modules.
IP Module I/O space, ID space, INT, and MEM space supported.
Interrupts: Supports two interrupt requests per IP module and interrupt acknowledge cycles via access to IP INT space.

CompactPCI bus Compliance

Meets PCI spec. V2.1 and PICMG 2.0, R2.1.
Data transfer bus: Slave with 32-bit, 16-bit, and 8-bit data transfer operation. 32-bit read/write accesses are implemented as two 16-bit transfers to the IPs.
Interrupts: CompactPCI bus INTA# interrupt signal. Up to two requests sourced from each IP mapped to INTA#. Interrupts come from IP modules via access to IP module INT space.
32-bit memory space: Upon power-up, the system auto-configuration process (plug & play) maps the carrier’s base address (for a 1K byte block of memory) into the PCI bus 32-bit memory space.

Power Requirements

Power
3.3V (±5%): 300mA maximum.
5V (±5%): 30mA maximum.
±12V (±5%): 0mA (not used).
Plus IP module load.
MTBF: Contact factory

Environmental

Operating temperature: 0 to 70°C (AcPC8635A model) or -40 to 85°C (AcPC8635AE model).
Storage temperature: -55 to 100°C.
Relative humidity: 5 to 95% non-condensing.