SECTION I FUNCTIONAL SYSTEM OPERATION - TM-11-5805-663-14-130055

T.O. 31S5-4-308-l

TM 11-5805-663-14-13

NAVELEX 0967-464-0010

serial output data to VF Comm Link 2. It

receives the control signals that

also converts serial input data from VF Comm

send or receive data.

Link 2 to parallel output data to the INFIBUS.

In addition, Modem Controller 2 generates

5 - 1 6 . The Block Transfer Adapter controls

and receives control signals that allow it to

the Mag Tape Controller during direct data

send or receive data.

transfers. A direct data transfer is a data

transfer directly to or from another Processor

5 - 2 1 . The Program

Maintenance Panel en-

function and IS not controlled by the CPU.

ables a programmer

to gain access to the

The Block Transfer Adapter enables the Mag

ape Controller to transfer blocks (1024

INFIBUS manually and

perform read or write

bytes) of data to and from the Formatter and

operations with the

Processor functions.

the Core Memory, to and from the Formatter

5 - 2 2 . The INFIBUS receives a 40 msec

and RMR function, and from the Formatter to

clock signal and 9.6 KHZ power fail

signal from the PFD/Clock function.

The 40 msec clock signal is used to

5 - 1 7 . The Mag Tape Controller interfaces

update the software calendar and

the Formatter with the INFIBUS. The Mag

clock program in the Core Memory.

Tape Controller transfers bidirectional

The 9.6 KHZ power fail signal causes

the Processor to shutdown in an

parallel bytes of data between the INFIBUS

and Formatter and, under control of the

orderly sequence before the power

being applied to the Processor and

stored software program, initializes the

Core Memory is removed.

Formatter prior to data transfers.

5-23. Master Processor functions can re-

5-18. The I/O Controller (Switch Group

quest INFIBUS access and, when granted

only) under control of the stored software

service, cause another Processor function

program determines whether the CCL, RSJ,

to receive or transmit data. The masters

or RMR function has access to the INFIBUS.

in the Processor are the CPU, Autoload,

When the I/O Controller grants INFIBUS

Block Transfer Adapter and Mag Tape Con-

access to the CCL function the usage,

troller, the I/O Controller when it is opera-

duration and count lead information is

ting with the CCL or RSJ functions, and the

coupled to the INFIBUS and then stored in

Program Maintenance Panel. Processor

Core Memory. When the I/O Controller

functions that can receive or transmit data

grants INFIBUS access to the RSJ function,

only when addressed are called slaves.

which occurs between CCL data transfers,

The slaves in the Processor are the Core

the RSJ data is coupled to the INFIBUS and

Memory Controller, Parallel I/O: TTY Con-

then stored in the Core Memory. When the

troller, Modem Controller 1, Mag Tape Con-

I/O Controller grants INFIBUS access to the

troller, I/O Controller (while operating with

RMR function the bidirection RMR data is

the RMR function), Printer Controller, and

coupled between the INFIBUS and AUTOVON

Modem Controller 2. A master can also

Switch.

operate as a slave when addressed by

another master.

5 - 1 9 . The Printer Controller (ACOC Group

only), interfaces the RO TTY function with

the INFIBUS and, under control of the stored

5 - 2 4 . Addresses are 16-bit hexadecimal

s o f t w a r e program, converts the

words placed on the INFIBUS by the master

parallel inputs from the INFIBUS to serial

to select the desired slave. Addresses in

outputs to the RO TTY function. rhe Printer

the range of 000016 through OOFFI6 are used

Controller also generates and receives con-

by the CPU while handling interrupts and to

trol signals that allow it to receive data.

vector to the appropriate subroutine in the

stored software program. This range of

addresses is referred to as the executive

5 - 2 0 . Modem Controller 2 interfaces the VF

space of the Core Memory. Addresses

Comm. Link 2 with the INFIBUS and, under

from 0100 16 through DFFF 16 are assigned to

control of the stored software program, c o n -

the operating programs and data storage

vert s the parallel inputs from the INFIBUS to

5-3