Optional Features - IBM System/370 145 Manual

*STORE THEN AND SYSTEM MASK
*STORE THEN OR SYSTEM MASK
(START I/O FAST RELEASE, a sys'tem/310 privileged instruction
functionally implemented on the Models 165 and 168, is executed
as a START I/O on the Model 1
W5)
• BC and EC modes of operation
• Dynamic address translation
• Channel indirect data addressing
• Microinstruction retry
• Monitoring feature
• Program event recording
• Interval timer (3.3 millisecond rlesolution)
• Time of day clock
• Expanded machine check interruption class
• Interruption for SSM instruction
• Reloadable control storage - 32K
• Movable control storage boundary
• ECC on processor and control storage
• Byte-oriented operands
• Store and fetch protection
• Byte multiplexer channel (16 subchannels assumed but not contained
in basic system microcode)
• Selector channel 1 (IFA not present) or selector channel 2
(IFA installed)
• Channel retry data in a limited channel logout area
• OS/DOS Compatibility feature
• Console file for microcode and microdiagnostic routine loading
*Privileged instructions
OPTIONAL FEATURES
Optional features for the Systeml3'70 Model 145, which can be field
installed unless otherwise noted, are::
• CPU timer and clock comparator (and associated privileged instructions
SET CPU TIMERJF STORE CPU TIMER,
S]~
CLOCK COMPARATOR, STORE CLOCK
COMPARATOR)
• Floating-point arithmetic including extended precision (no-charge feature)
• 1401/1440/1460 Compatibility (no-charge feature)
• 1401/40/60, 1410/1010 Compatibilit:y (no-charge feature)
• Direct Control (includes External Interrupt feature)
• Byte multiplexer subchannels above 16 (no-charge feature)
• Integrated File Adapter with 2319 Disk Storage - channel 1 position only
(not recommended for field installation but may be removed in the field)
• Selector channel 3 (in addition to IFA)
• Selector channels 2, 3, and
4
(if IFA is not installed)
• Channel Word Buffer feature on all installed selector channels
• Block multiplexer mode for any or all installed selector channels
(no-charge feature)
• Channel-to-Channel Adapter
• 3210 Modell Adapter** - for atta(::hment of a 3210 Modell console
• 3210 Model 2 Adapter - for attacrunent of a remote 3210 Model 2 console
• 3215 Model 1 Adapter** - for at't.a(::hment of a 3215 Model 1 console
• 3345 Main Storage Frame Model 1
Olr
2***
• 3345 Storage and Control Frame
M~iel
3, 4, or 5***
• 3046 Power unit - required for processor storage configurations of
384K and 512K
**Either the 3210 Model
1
or the 3215 Model 1 Console Printer-Keyboard
must be installed as the primary system console.
***Maximum one 3345 per system.
A Guide to the IBM System/370 Model 1 L~5 43