IBM System/370 Manual page 175

Features
G. Machine check
interrupt
H. Size of fixed
storage area in
lower core
I. Control logic
J. CPU cycle time
K. Direct Control
L. Compatibility
features (all are
optional and
mutually exclusive)
M. Multiprocessor
systems
System/360
Model 65
One level of machine
check provided for
all machine errors.
One machine check
mask.
328 bytes including
CPU and channel
logouts
Microprogram in ROS
200 nanoseconds
8-byte data path
Optional
1. 7070/7074
2. 7080 (for both 705
and 7080 emulation)
3. 709/7040/7044/7090/
7094/709411
1. Multisystem optional
feature permits
interconnection of
two Model 65s. Main
storage is shared
(512K or more).
Direct control is
required.
2. The support or main
processor in an ASP
configuration can be
a Model 65. Two or
three systems are
connected via a
Channel to Channel
Adapter.
System/370
Model 165
Occurs on both soft
(corrected) and hard
(uncorrected) errors.
Four types are
defined. Additional
masking is provided.
1512 bytes, reducible
to 512 if the extended
logout area is moved
Microprogram in both
ROS and WCS
80 nanoseconds
8-byte data path
Standard
1. 7074 (includes 7070
and 7074)
2. 7080 (for both 705
and 7080)
3. 709/7090/7094/709411
(does not include
704, 7040, or 7044)
OS - Model 65
SERO, SER1, and MCH
routines. (See item
VI for fUnctions
provided. )
Logout data processed
by MCH or SER routine
Not supported
Three stand-alone
emulators are
provided.
1. A mUltisystem feature 1. OS MP/65 supports
is not available. Model 65
multiprocessor
systems (MVT).
2. A Model 165 can be a
a support or main
processor in an ASP
configuration.
2. PCP, MFT, or MVT
can be used for a
Model 65.
OS - Model 165
MCH routine. (See item IV
for functions provided.)
Logout data processed
by MCH
Not supported
Three integrated emulator
programs provided, one
for each 7000 series
compatibility feature
2. MFT or MVT can be used
for a Model 165.