SM5902AF datasheet(17/40 Pages) NPC

Teilenummer	SM5902AF

Bauteilbeschribung	compression and non compression type shock-proof memory controller

PDF	40 Pages

Scroll/Zoom	100%

Hersteller	NPC [Nippon Precision Circuits Inc]

Direct Link	http://www.npc.co.jp/en

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17 / 40 page

NIPPON PRECISION CIRCUITS-17

SM5902AF

Bit

Name

Function

HIGH-level state

UC5RD

UC4RD

UC3RD

UC2RD

UC1RD

1001 0011

93hex =

Input data entering (or output data from) an extension port terminal is echoed to the microcontroller.

(That is, the input data entering an I/O port configured as an input port using the 81H command,

OR the output data from a pin configured as an output port using the 82H command.)

Bit

Name

Function

AM21

Valid data accumulated VWA-RA (MSB) 8M bits

AM20

AM19

AM18

AM17

AM16

AM15

AM14

AM13

AM12

AM11

AM10

AM09

AM08

AM07

AM06

1001 0010

92hex =

Note. The time conversion factor varies depending on the compression bit mode.(M = 1,048,576 K= 1,024)

Residual time (sec) = Valid data residual (Mbits)

× Time conversion value K

where the Time conversion value K (sec/Mbit)

≈ 2.78 (4 bits), 2.22 (5 bits), 1.85 (6 bits) and 0.74 (Full bits).

4M bits

2M bits

1M bits

512k bits

256k bits

128k bits

64k bits

32k bits

16k bits

8k bits

1k bits

4k bits

2k bits

512 bits

256 bits

Shock-proof memory valid data residual 92

Extension I/O inputs 93

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