4331 and 4341 Processor Support The IBM 4300 processors, supported by this release, combine System/370 compatibility with large scale integration (LSI) technology.
The 4331 processor offers processor storage and high speed control
storage to accomodate standard functions as well as optional features
requiring control storage capability. Current System/370 users and new
customers can now use interactive and data base/data communications
applications. One half megabyte of processor storage is standard on the
4331 with the option of expanding to one megabyte. 1 wide variety of
current 1/0 devices can be attached to the 4331 processor in addition to
new I/O devices that are supported when the V8/370 Basic System Extensions program Product is installed.
The 4341 processor also offers virtual storage and SCP support with System/370 compatibility. This processor bas versatility in
applications usage as a commercial, scientific, data acquisition,
teleprocessing, or general purpose As with the 4331, the 4341
can also use a wide variety of currently available I/O devices, tape
units, and display units in addition to the new devices that function
only when the installation is running with the Vft/370 Basic System Extensions Program Product. Two megabytes of Frocesscr storage are
standard on the 4341 with the option of expanding to four megabytes.
Release 6 of V8/370 is compatible with ECPS:Ve/370 Level 19 on the
4331 and 4341 processors. This support is included in the initial
shipment of these processors. 10 fixed or I/O extended machine check logout area and no fixed or 1/0 extended channel check logout area exist for the 4331 and 4341 and
no region code (model dependent information) is available. Independent
machine checks and channel checks are recorded as they are now. If any
dependent machine or channel check occurs, it is recorded on diskette
which only customer authorized service personnel can access using a
standalone program.
The 3278 Model 21 display station is used as the system console for
the 4331 and 4341 processors. The 3278 ftodel 21 is sUPForted the same
as a 3277 with the following differences for the new display station: Screen layout differences. 20 lines (80 25- line display are used for operator
recognize the smaller screen size.
1-4 IBft VM/370 Release 6 Guide
characters per line) of the
coamunication. CP and eftS
The addition of six national usage characters in inFut and output
data streams.
National §!:gEhic N03 I broken vertical line 61 ! HU4 " grave accent 79 HU9 IV tilde Al NU10 { open brace CO NUll } close brace DO NU12 ,
reverse slant EO Since the 3277 logical tab value X'61' is now a displayed
character on the 3278 Model 21, the tab function is changed to allow
the operator to specify another character as the logical tab. This
is done through the use of a new operand of the TERMINAL command.
The ney operand and its parameters are TIBCHAR The
operator may also query the setting of the logical tab via the QUERY TERMINAL command. CP returns as part of its response to the command,
TABCHAR {ONIOFFlchar}. Keyboard changes. The REQ and CNCL keys On the 3278 Model 2A perform
the same functions as the PAl and PA2 keys on the 3277. No PA3 and
CLEAR keys exist on the 3278 Model 21. When generating the device type for the 3278 Model 2A, specify DEVTYPE=3278 and MODEL=2A in the RDEVICE macrc instruction and the CUTYPE=3272 in the RCTLUHIT macro instruction.
The 3287 Model 1 or 2 printer is used with the 4331 and 4341 processors as the system hardcopy device. When generating the device
type for the 3287 Model 1 or 2, specify DEVTYPE=3287 in the RDEVICE macro instruction. SRL AND PROGRAM LOGIC PUBLICATIONS The following publications contain information on V!/370 support of the 4331 and 4341 processors including the 3278 Medel 2A and the 3287 Medel 1 or 2: GC20-1801 Planning and System Generation Guide GC20-1807 System Programmer's Guide GC20-l809 OLTSEP and Error Recording Guide GC20-l818 CMS User's Guide
GC20-1819 CMS Command and Macro Reference GC20-1820 CP Command Reference for General Users SY20-0884 Data Areas and Control Block Logic SY20-0886 System Logic and Problem Determination Guide, Vol. 1 Section 1. Summary of Changes to the VM/370 System 1-5
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