Z8536 Cio Device; Base Module Feature Register - Motorola MVME2600 series Installation And Use Manual

Functional Description

Z8536 CIO Device

3

Base Module Feature Register

BIT
FIELD
Not Used SCCP
OPER
RESET
3-14
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 5 MHz clock input.
The Base Module Feature Register contains the details of the
MVME2603/2604 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
∗
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.
∗
VMEP VMEbus present. If set, there is no VMEbus interface. If
cleared, the VMEbus interface is supported.
∗
LANP Ethernet present. If set, no Ethernet transceiver interface is
installed. If cleared, there is on-board Ethernet support.
SD4 SD3
∗ ∗ ∗
PMC1P VMEP Not Used
R R
N/A N/A
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SD2 SD1 SD0
∗
LANP SCSIP
R R
N/A N/A
∗