UT1553RTMP 查看數據表（PDF） - Aeroflex UTMC

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UT1553RTMP

Remote Terminal Multi-Protocol

Aeroflex UTMC 

CONTROL SIGNALS

NAME

CS

PIN NUMBER

LCC PGA

44 E9

TYPE ACTIVE

DESCRIPTION

TUI AL

Chip Select. This input, along with RD and WR, allows

the host to access the RTMP’s internal data registers.

RD

WR

AV

RRD

RWR

SVC

45 E11 TI AL

46 E10 TI AL

52 C10

50 C11

51 B11

40 G10

TTO AL

TTO AL

TTO AL

TUI AL

Read. When used in conjunction with CS, RD allows the

RTMP to place data from the selected internal register on the

Data bus (D15-D0).

Write. When used in conjunction withCS, WR latches data

from the Data bus (D15-D0) into the selected RTMP internal

register.

Address Valid. The RTMP asserts AV to indicate that the

address (A15-A0) is valid.

RAM Read. The RTMP asserts RRD during DMA cycles

that require data from system RAM.

RAM Write. The RTMP asserts RWR during DMA cycles

to write data to system memory.

Superseding Valid Command. The host system uses this

input when more than one RT is present in the system; i.e.,

a quad-redundant system. When asserted, this input causes

the RTMP to terminate all present activity and perform an

internal reset of encoders/decoders, RT state machine, and

DMA state machine. Registers are not affected. Do not assert

while DMAR is asserted (tpw 250ns minimum).

SME

41 G11

ILLCOM 22

J6

PRA/B

ENBC

TEST

12 K2

13 K3

14 L2

TDI AH

TDI AH

TI

--

TDI AH

TDI AH

Set Message Error. Asserting this input causes the

Message Error bit in thestatus word to be set.

Illegal Command. This input illegalizes a command

word that the RTMP accepts but the system does not

support. When set, the RTMP responds with the

Message Error bit set in the status word. ILLCOM

is used in conjunction with the Mode Code/

Subaddress outputs.

Program A/B. This input is the 1553 mode select input. A high

input places the RTMP in the MIL-STD-1553A mode; a low

places the RTMP in the MIL-STD-1553B mode.

Enable Broadcast. A high on this input, when the

RTMP is in the 1553B mode, allows the RTMP to

recognize a broadcast command word.

Test. The TEST input pin allows the user to select between

internal (TEST = 0) or external (TEST = 1) self-test. When

TEST equals a logic one and DMAEN equals a logic zero,

MCSA (4:0) and MC/SA three-state.

RTMP-8

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