INDUSTRIAL I/O PACK SERIES AVME9675A
VMEx64 bus 6U CARRIER BOARD
Acromag, Inc. Tel: 248-295-0310
- 41 - http://www.acromag.com
- 41 -
https://www.acromag.com
The following registers are located in the carrier’s Sho
rt (A16) I/O space:
•
Software reset can be issued to reset the FPGA Logic and all IP modules
present on the carrier board via the
Status Register
.
•
Monitoring the error signal received from each IP module is possible via
the
IP Error Register
.
•
Configuration of VME64x bus A24 standard address space for optional
Memory Space on each IP module is possible. Memory Space access to
the IP modules can be individually enabled via the
IP Memory Enable
Register
. The base address and address range (size) is programmed via
carrier registers
IP_A and IP_B Memory Base Address & Size Registers
.
The address size can be selected from 1M, 2M, 4M, or 8M bytes.
•
Enabling of VME64x bus interrupt requests from each IP module via the
IP Interrupt Enable Register
is possible. The desired VME64x bus
interrupt level desired can be set (via the
Interrupt Level Register
), and
pending interrupts can be monitored and cleared via carrier registers
IP
Interrupt Pending
and IP Interrupt Clear Registers
.
•
Lastly, pending interrupts can be globally monitored and released to the
VME64x bus via the
Status Register
.
4.4 IP Logic Interface
The IP logic interface is also implemented within the carrier board’s FPGA.
The carrier board implements ANSI/VITA 4 1995 for 8 MHz operation only.
Industrial I/O Pack logic interface specification includes four IP logic
interfaces on an AVME9675A. The VME64x bus address and data lines are
linked to the address and data of the IP logic interface. This link is
implemented and controlled by the carrier bo
ard’s FPGA.
The VME64x bus to IP logic interface link allows a VME64x bus master to :
•
Access up to 32 ID Space bytes for IP module identification (ID ROM
Data Format I) via D08(O) data transfers using VME64x bus A16 short
address space.
•
Access up to 128 I/O Space bytes of IP data via D16/D08(EO) data
transfers using VME64x bus A16 short address space.
•
Access up to 8Mbytes of IP data mapped to Memory Space via D16 or
D08(EO) transfers using VME64x bus A24 standard address space.
•
Respond to two IP module interrupt requests per IP with software