Z8536 Cio Device - Motorola MVME2700 Series Installation And Use Manual

Functional Description

Z8536 CIO Device

5
Base Module Feature Register
BIT
FIELD Not Used
OPER
RESET
5-16
The Z85230 receives a 10MHz clock input. The Z85230 supplies an
interrupt vector during pseudo interrupt acknowledge cycles. The vector is
modified within the Z85230 according to the interrupt source. Interrupt
request levels are programmed via the PIB controller. Refer to the Z85230
data sheet and to the MVME2600 Series Single Board Computer
Programmer's Reference Guide for further information.
The Z8536 CIO device complements the Z85230 ESCC by supplying
modem control lines not provided by the Z85230 ESCC. In addition, the
Z8536 CIO device has three independent 16-bit counters/ timers. The
Z85230 receives a 5MHz clock input.
The Base Module Feature Register contains the details of the MVME2700
single-board computer's configuration. It is an 8-bit read-only register
located on the base board at ISA I/O address $0802.
Base Module Feature Register — Offset $0802
SD7 SD6 SD5
SCCP PMC2P
R R
N/A 1
SCCP Z85230 ESCC present. If set, there is no on-board
synchronous serial support (the ESCC is not present). If
cleared, the Z85230 ESCC is installed and there is on-board
support for synchronous serial communication.
PMC2P PMC/PMCIX slot 2 present. If set, no PCI mezzanine card (or
PCI expansion device) is installed in PMC slot 2. If cleared,
PMC/PMCIX slot 2 contains a PCI mezzanine card (or PCI
expansion device).
PMC1P PMC slot 1 present. If set, no PCI mezzanine card is installed
in PMC slot 1. If cleared, PMC slot 1 contains a PCI
mezzanine card.
SD4 SD3 SD2
PMC1P VMEP Not Used
R R
N/A N/A
Computer Group Literature Center Web Site
SD1 SD0
LANP SCSIP
R R
N/A N/A